Re: [osg-users] SVN Access Fails
Hi Dave, take a look at these downloads http://www.osgvisual.org/projects/osgvisual/wiki/Downloads Regards Sergey On Sun, Apr 12, 2015 at 8:00 PM, Dave Sargrad davidsarg...@hotmail.com wrote: Hmm... So I've downloaded the 3rd party dependencies and have placed them in to my OSG root directory: C:\osg\OpenSceneGraph-3.2.2-rc2 Hence they are in the following location: C:\osg\OpenSceneGraph-3.2.2-rc2\3rdParty_x86_x64 I have rerun cmake (both configure and generate): I would expect to see the following plugin enabled in the solution: C:\osg\OpenSceneGraph-3.2.2-rc2\src\osgPlugins\freetype However I dont. I also tried pointing the following CMAKE attribute to the newly installed freetype dependecy: FREETYPE_INCLUDE_DIR_freetype2 - C:\osg\OpenSceneGraph-3.2.2-rc2\3rdParty_x86_x64\x64\include I have also verified that the following CMAKE attribute is enabled: USE_3RDPARTY_BIN Any other pointers relative to getting this plugin built? Thank you! Cheers, Dave -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63350#63350 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Master compilation error with MinGW / C++11
Hi Philippe, the error was recently discussed in osg-submissions mailing list http://forum.openscenegraph.org/viewtopic.php?t=14750postdays=0postorder=ascstart=15 see posts by Wojtek and as far as I remember there was a fix, so check code if not - try to apply fixes and also submit them again. Regards Sergey On Fri, Apr 10, 2015 at 7:53 PM, philippe renon philippe_re...@yahoo.fr wrote: Hi, I recently pulled master and I am seeing the error below. Seems like c++ 11 is now mandatory. Is that voluntary? Philippe. [ 89%] Building CXX object src/osgPlugins/osgjs/CMakeFiles/osgdb_osgjs.dir/Animation.obj In file included from d:/Projects/OpenPilotTools/qt-5.4.1/Tools/mingw491_32/i686-w64-mingw32/include/c++/cstdint:35:0, from D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:34, from D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\Animation.cpp:12: d:/Projects/OpenPilotTools/qt-5.4.1/Tools/mingw491_32/i686-w64-mingw32/include/c++/bits/c++0x_warning.h:32:2: error: #er ror This file requires compiler and library support for the ISO C++ 2011 standard. This support is currently experimental, and must be enabled with the -std=c++11 or -std=gnu++11 compiler options. #error This file requires compiler and library support for the \ ^ In file included from D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\Animation.cpp:12:0: D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:94:67: error: 'uint8_t' was not declared in this sc ope void encodeArrayAsVarintBuffer(osg::Array const*, std::vectoruint8_t) const; ^ D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:94:74: error: template argument 1 is invalid void encodeArrayAsVarintBuffer(osg::Array const*, std::vectoruint8_t) const; ^ D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:94:74: error: template argument 2 is invalid D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:96:39: error: 'uint8_t' was not declared in this sc ope void dumpVarintVector(std::vectoruint8_t, T const*, bool) const; ^ D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:96:46: error: template argument 1 is invalid void dumpVarintVector(std::vectoruint8_t, T const*, bool) const; ^ D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:96:46: error: template argument 2 is invalid D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:98:38: error: 'uint8_t' was not declared in this sc ope void dumpVarintValue(std::vectoruint8_t, T const*, bool) const; ^ D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:98:45: error: template argument 1 is invalid void dumpVarintValue(std::vectoruint8_t, T const*, bool) const; ^ D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:98:45: error: template argument 2 is invalid D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:99:17: error: 'uint8_t' was not declared in this sc ope std::vectoruint8_t varintEncoding(unsigned int value) const; ^ D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:99:24: error: template argument 1 is invalid std::vectoruint8_t varintEncoding(unsigned int value) const; ^ D:\Projects\OpenPilot\3rdparty\osg\src\osgPlugins\osgjs\JSON_Objects:99:24: error: template argument 2 is invalid src\osgPlugins\osgjs\CMakeFiles\osgdb_osgjs.dir\build.make:57: recipe for target 'src/osgPlugins/osgjs/CMakeFiles/osgdb_ osgjs.dir/Animation.obj' failed make[3]: *** [src/osgPlugins/osgjs/CMakeFiles/osgdb_osgjs.dir/Animation.obj] Error 1 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] a question on extension functions convention
Hi Robert,
after I wrote previous email I dug more into current emscripten way to
convert gl calls.
It looks like it is now possible to build working code with current osg
naming scheme for extensions ( unfortunately emscripten documentation on
these issues is scarce, so I missed this possibility it in my previous
porting attempts).
Now I will make another round to convert osg with new approach and see if
it actually works for osg.
Thus disregard my first request.
Thanks for your time.
Regards
Sergey
On Fri, Apr 10, 2015 at 6:25 PM, Sergey Kurdakov sergey.fo...@gmail.com
wrote:
Hi Robert,
you might notice, that I try to make a port of osg to emscripten
Overall osg 'for the web' works, but I found several issues with
emscripten which require me to keep
quite a different copy of osg
The main issue are extensions.
The problem arises from how emscripten translates OpenGL to WebGL calls.
it takes
gl* functions in C code and directly substitutes them with webgl gl*
functions.
Now it is clear what the problem is : that emscripten compiler does not
understand extension functions which are set in the way
setGLExtensionFuncPtr(_gl*
let's take an example:
void Texture2DArray::Extensions::glTexSubImage3D( GLenum target, GLint
level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei
height, GLsizei depth, GLenum format, GLenum type, const GLvoid *pixels)
const
{
if (_glTexSubImage3D)
{
_glTexSubImage3D( target, level, xoffset, yoffset, zoffset, width,
height, depth, format, type, pixels);
}
else
{
OSG_WARNError: glTexSubImage3D not supported by OpenGL
driverstd::endl;
}
}
_glTexSubImage3D function won't be translated ,
There are different ways to keep emscripten happy and use that
glTexSubImage3D and I have forced it.
But the ways how i did so far - looks patchy and inconsistent ( lots of
'#ifdef's where calls to extensions occur )
And I would like to have an osg port which is minimally different from
stock osg ( just ifdef ed threading functions - there are no threads in
browser and there will not be any similar threading functions to one used
in osg for foreseeable future ).
the solution which will satisfy emscripten with least invasive way seems
to have
Extensions::_gl
functions everywhere and also
setGLExtensionFuncPtr(gl* //no _ before gl
approach to set extensions.
and for setGLExtensionFuncPtr - for emscripten there will be a special
function to deal with what gl functions WebGL has and what not.
of cause I understand - such a change might break quite a bit of user code
in case I develop a patch for osg which follows such convention
I have several other ways to deal - to write a special emscripten module
which will be clever enough to use both gl and _gl functions during
translation phase, but then - it is hardly possible that it will be
accepted to emscripten as it will be needed only for my port and any user
will need to hack emscripten to compile osg for web.
so my question is - how feasible is to ask for _gl gl convention swap for
extention _gl* functions and their Extensions::gl* wrappers?
Best regards
Sergey
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Re: [osg-users] Possible bug in dev version:no call to initializeExtensionProcs for embedded window
Hi Robert,
I tracked my error.
my osg is a port of osg to emscripten, so no switch of contexts happens,
for that matter to reduce workload I commented in
void ViewerBase::renderingTraversals()
line
makeCurrent(*itr);
in
for(itr = contexts.begin();
itr != contexts.end() !_done;
++itr)
{
if (!((*itr)-getGraphicsThread()) (*itr)-valid())
{
doneMakeCurrentInThisThread = true;
makeCurrent(*itr);
(*itr)-runOperations();
}
}
that was fine for older version of osg, never version initializes
extensions in a first call to makeCurrent(*itr);
now I uncommented this line in my code but keep porting other things in
new version of osg though.
so there is nothing wrong with osg at all - that was just an artifact of my
port and different behavior to init extensions, sorry for wrong call.
Regards
Sergey
On Tue, Apr 7, 2015 at 2:50 PM, Sergey Kurdakov sergey.fo...@gmail.com
wrote:
Hi Robert,
with osg it works ok, but I try to find a source of the bug then will
report ( or will write and example where it can be tracked in stock osg )
Regards
Sergey
On Tue, Apr 7, 2015 at 12:37 PM, Robert Osfield robert.osfi...@gmail.com
wrote:
Hi Sergey,
It sounds like a bug to me. I haven't tried replicating it but will have
a bash this morning. Can you recreate the problem with an OSG example?
At a first guess I think the solution would be for the
GraphicsWindowEmbedded::relaizeImplemention() to do the
State::initializeExtensionProcs().
Robert.
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Re: [osg-users] Possible bug in dev version:no call to initializeExtensionProcs for embedded window
Hi Robert, with osg it works ok, but I try to find a source of the bug then will report ( or will write and example where it can be tracked in stock osg ) Regards Sergey On Tue, Apr 7, 2015 at 12:37 PM, Robert Osfield robert.osfi...@gmail.com wrote: Hi Sergey, It sounds like a bug to me. I haven't tried replicating it but will have a bash this morning. Can you recreate the problem with an OSG example? At a first guess I think the solution would be for the GraphicsWindowEmbedded::relaizeImplemention() to do the State::initializeExtensionProcs(). Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Possible bug in dev version:no call to initializeExtensionProcs for embedded window
Hi Robert,
it looks a bug surfaces due to my heavily modified code, so now I
investigate the bug further ( it looks is not an osg bug now ), though
earlier attempts to fix it by adding makeCurrent() to
GraphicsWindowEmbedded 's
virtual bool realizeImplementation() { return makeCurrent(); }
somehow worked.
I will notify when I will find an initial reason for the bug.
Regards
Sergey
On Mon, Apr 6, 2015 at 12:11 AM, Sergey Kurdakov sergey.fo...@gmail.com
wrote:
Hi Robert,
I got dev version and found following
When I create GraphicsWindowWin32
then osg calls
bool GraphicsWindowWin32::realizeImplementation()
where it calls
bool GraphicsContext::makeCurrent()
then
getState()-initializeExtensionProcs();
but when
GraphicsWindowEmbedded
is created it
calls
virtual bool realizeImplementation() { return true; }
thus not call to
getState()-initializeExtensionProcs();
and no extensions are initialized for embedded window
Regards
Sergey
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[osg-users] Possible bug in dev version:no call to initializeExtensionProcs for embedded window
Hi Robert,
I got dev version and found following
When I create GraphicsWindowWin32
then osg calls
bool GraphicsWindowWin32::realizeImplementation()
where it calls
bool GraphicsContext::makeCurrent()
then
getState()-initializeExtensionProcs();
but when
GraphicsWindowEmbedded
is created it
calls
virtual bool realizeImplementation() { return true; }
thus not call to
getState()-initializeExtensionProcs();
and no extensions are initialized for embedded window
Regards
Sergey
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Re: [osg-users] embed osgViewer into FLTK window...
Hi Shayne, it looks like your can render to osg fbo (with clear color set to have alpha ), then you might apply texture from osg fbo to quad in fltk. at least it is how I did the same thing in Blender long time ago. Regards Sergey On Wed, Mar 25, 2015 at 11:12 PM, Shayne Tueller shayne.tuel...@hill.af.mil wrote: All, I'm trying to embed an osgViewer that has a transparent background into an FLTK main window. The embedded osgViewer needs to have a transparent background so that I can see the parent window behind it. Is this even possible? What I'm trying to do is use the osgViewer as an overlay to render symbology on top of the main parent FLTK window. I've looked at the osgViewerFLTK example and the osgHUD example but nothing has worked so far. Any suggestions or help would be appreciated... Shayne -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63209#63209 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] referenced memory management across dlls/exe (Windows only)
Hi To link against shared libgcc, add -shared-libgcc to link against shared libstdc++ add -lstdc++_s Regards Sergey On Sun, Mar 1, 2015 at 1:58 PM, Ulrich Hertlein u.hertl...@sandbox.de wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hi Nick, On 28/02/2015 14:46, Trajce Nikolov NICK wrote: I am facing a problem with memory clean-up when mixing the place of allocation across dlls and the executable. Let say I have main executable that loads dlls (plugins) in which I allocate memory using referenced pointers. On exit, those pointers that were allocated in one of the dlls got stucked in ... If I clean these pointers from the originated dll, it works ok, otherwise not. Any clue? You end up with different instances of the runtime library, each with its own heap management. You allocate the object on the heap of one DLL and free it onto the heap of the other - bang. Sorry, I don't know what the corresponding flag might be on mingw. Cheers, /ulrich -BEGIN PGP SIGNATURE- Version: GnuPG v1 iQEcBAEBCAAGBQJU8vDIAAoJEP8WARS52jMYq6gH/Axcl3evhaF8tdjUePeHb707 Et4rociiWaZdVu2Cq3x3TWr6MvOqqdcJMka1h7z0Nyy43FI0HI2s63NdPiXH5LcS BYC8j1w8BTzOisOUYyQJwGaqt4856ne2tHAjAU47Qp5bAsvbx7ZTZa0VU2ncLmJt A5P2TOtDRGBjtxoQc4Kmx33AWHFzX3iT+yaN5v6EUTVO3MReQTqWCXdJWr+/GC/0 DMWmO/ZhGLis2NONoDGeNtZtgABPhg91Z+tZt0jYyzEkJ9eC4WN+F7x++0NPfRaf BBAzFN8Ch9YA4mcMjQF2TkqEdMcBHnmUb49ObUbU6fHd9Ce946dwfrB1gtlne4M= =Q7H0 -END PGP SIGNATURE- ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] referenced memory management across dlls/exe (Windows only)
Hi Nick, after looking some more I found that newer versions of Mingw switch to dynamic linking of libstd++ by default. so libstdc++-6.dll is a right lib. but as you have the same problems then I have no answer. Regards Sergey On Sun, Mar 1, 2015 at 5:16 PM, Trajce Nikolov NICK trajce.nikolov.n...@gmail.com wrote: Hi Sergey, on my system with the latest from the Qt bundle I don't have the libstdc++_s ... only libstdc++.a and libstdc++-6.dll . And I added -lstdc++ and still getting the same issues. Any further hints? Thanks a lot Nick On Sun, Mar 1, 2015 at 1:07 PM, Trajce Nikolov NICK trajce.nikolov.n...@gmail.com wrote: Thanks Ulrich. That is what is going on Sergey, where this flags go in the .pro file, in* QMAKE_CXXFLAGS* or *LIBS* ? Thanks a bunch Nick On Sun, Mar 1, 2015 at 12:49 PM, Sergey Kurdakov sergey.fo...@gmail.com wrote: Hi To link against shared libgcc, add -shared-libgcc to link against shared libstdc++ add -lstdc++_s Regards Sergey On Sun, Mar 1, 2015 at 1:58 PM, Ulrich Hertlein u.hertl...@sandbox.de wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hi Nick, On 28/02/2015 14:46, Trajce Nikolov NICK wrote: I am facing a problem with memory clean-up when mixing the place of allocation across dlls and the executable. Let say I have main executable that loads dlls (plugins) in which I allocate memory using referenced pointers. On exit, those pointers that were allocated in one of the dlls got stucked in ... If I clean these pointers from the originated dll, it works ok, otherwise not. Any clue? You end up with different instances of the runtime library, each with its own heap management. You allocate the object on the heap of one DLL and free it onto the heap of the other - bang. Sorry, I don't know what the corresponding flag might be on mingw. Cheers, /ulrich -BEGIN PGP SIGNATURE- Version: GnuPG v1 iQEcBAEBCAAGBQJU8vDIAAoJEP8WARS52jMYq6gH/Axcl3evhaF8tdjUePeHb707 Et4rociiWaZdVu2Cq3x3TWr6MvOqqdcJMka1h7z0Nyy43FI0HI2s63NdPiXH5LcS BYC8j1w8BTzOisOUYyQJwGaqt4856ne2tHAjAU47Qp5bAsvbx7ZTZa0VU2ncLmJt A5P2TOtDRGBjtxoQc4Kmx33AWHFzX3iT+yaN5v6EUTVO3MReQTqWCXdJWr+/GC/0 DMWmO/ZhGLis2NONoDGeNtZtgABPhg91Z+tZt0jYyzEkJ9eC4WN+F7x++0NPfRaf BBAzFN8Ch9YA4mcMjQF2TkqEdMcBHnmUb49ObUbU6fHd9Ce946dwfrB1gtlne4M= =Q7H0 -END PGP SIGNATURE- ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- trajce nikolov nick -- trajce nikolov nick ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Free OSG beginners guide
Hi Jordi thanks for JFYI Hi have seen today an offer of packtpub to get the OSG beginners guide ebook for free: https://www.packtpub.com/packt/offers/free-learning to others - hurry up as time is ticking to claim the book. Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CAD Style rendering
Hi Anders, FreeCAD uses Open Inventor (it's fork) - and while it is not osg ( I had idea some time ago to port FreeCAD to osg - but unfortunately I'm constantly time constrained ) you might take a look there for inspirations. otherwise there are several osg based modelling tools ( which are not CAD, but still - Blender is used for CAD rendering too ) - you might take a look too Regards Sergey On Fri, Feb 6, 2015 at 4:03 PM, Anders Backman ande...@cs.umu.se wrote: New try, the previous was too big (included an image...) Hi all. A general question about rendering... Does anyone has code? to share for a solid CAD style rendering with OpenSceneGraph? I am deliberately vague because it is a broad concept. A technical rendering style, order independent? transparency. Hidden lines wire frame etc... I am looking for inspiration for implementing this kind of rendering. We do most of our rendering using Shaders today. We have a megashader at the end which does all lighting, shadowing, texturing etc. Below is a shot from GrabCAD which sort of illustrates what I am looking for. http://pbrd.co/1zfevxL Position of light sources, type of lightsources # lightsources etc. Any hints? Tankful for any input. Cheers, Anders -- __ Anders Backman, HPC2N 90187 Umeå University, Sweden and...@cs.umu.se http://www.hpc2n.umu.se Cell: +46-70-392 64 67 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] ClipTexture and OpenSceneGraph
Hi Tony, I'm not aware of this functionality in stock osg, so looks like you should search for virtual texture of sparse texture OpenGL extension or similar terms ( MegaTexture etc ) on the net. few links with code examples you might find useful http://sourceforge.net/projects/libvt/ it is claimed to work with OpenSceneGraph https://github.com/g-truc/ogl-samples has sparse texture example, see also http://www.tinysg.de/techGuides/tg4_prt.html https://bitbucket.org/hybird/moquette/src/3cf8f3ba2fcb9df70798c0cc66468e5a109fcd42?at=default - is a virtual texture plugin for Ogre Regards Sergey On Thu, Jan 29, 2015 at 3:05 PM, Tony Vasile ming...@gmail.com wrote: Hi, We are about to port an application from Performer that makes use of ClipTextures. What is the equivalent in OpenSceneGraph or is there an alternative way to get the same feature. For a definition of a ClipTexture see http://techpubs.sgi.com/library/dynaweb_docs/0620/SGI_Developer/books/Perf_PG/sgi_html/ch12.html Thank you! Cheers, Tony -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62518#62518 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] GIF plugin and animated GIFs
Hi Christian, ok I got it, if anything, if you would need to change code then ffmpeg has capabilities to use filters http://www.ffmpeg.org/doxygen/0.9/filtering_8c-source.html (setpts filter can control speed https://trac.ffmpeg.org/wiki/How%20to%20speed%20up%20/%20slow%20down%20a%20video ) to speed up or slow down video. Regards Sergey On Sat, Jan 10, 2015 at 12:09 PM, Christian Buchner christian.buch...@gmail.com wrote: the ffmpeg flug-in does not currently support variable playback speed, it appears. I was also having issues with incorrect timestamps being reported close to the end of replaying some animations. I may actually look intp WebP and animated PNG, thanks, Christian 2015-01-09 21:01 GMT+01:00 Sergey Kurdakov sergey.fo...@gmail.com: Hi Christian, just wonder, not knowing your needs, but anyway why wouldn't you use ffmpeg plugin? it supports animated WebP/jpeg video ( though webm vp8/vp9 video might also suite your needs) http://www.phoronix.com/scan.php?page=news_itempx=MTg1NDQ which is better than gif according to https://zoetrope.io/tech-blog/beyond-jpeg-videos-and-emerging-image-standards Regards Sergey On Fri, Jan 9, 2015 at 5:04 PM, Christian Buchner christian.buch...@gmail.com wrote: In our case it's overlay animations consisting of hundreds of frames. These show some kind of animated plots or illustrations on top of our 3D renders. Some animations now take two seconds to load and they consume hundreds of MBs of RAM. So I guess I will have to address that problem at the root (the plug-in). Christian 2015-01-09 12:53 GMT+01:00 Robert Osfield robert.osfi...@gmail.com: Hi Chrisitan, How big gif's are you trying to handle. With the gif plugin my assumption has been the the aninated gifs would be small enough that storing in memory wouldn't be that costly. I have no objection to having a separate thread handle reading as an option - if you are willing to code it. However, it's not a big issue w.r.t memory usage then I'd say just live it as is. Robert. On 8 January 2015 at 15:51, Christian Buchner christian.buch...@gmail.com wrote: Hi, there's a couple of things I noticed with the GIF plugin. When it encounters animated GIFs, it will decode the entire animation into a sequence of images in RAM. This process appears to be synchronous (it blocks the calling thread), and it will consume a lot of memory. I was wondering if there is any interest in improving this. For example we could shift the decoding to when an image is actually supposed to be rendered to screen. We still need to make an initial first pass over the file in order to determine the total number of frames and their respective playout timestamps - but I think we could skip the decoding pass. Christian ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] GIF plugin and animated GIFs
Hi Christian, just wonder, not knowing your needs, but anyway why wouldn't you use ffmpeg plugin? it supports animated WebP/jpeg video ( though webm vp8/vp9 video might also suite your needs) http://www.phoronix.com/scan.php?page=news_itempx=MTg1NDQ which is better than gif according to https://zoetrope.io/tech-blog/beyond-jpeg-videos-and-emerging-image-standards Regards Sergey On Fri, Jan 9, 2015 at 5:04 PM, Christian Buchner christian.buch...@gmail.com wrote: In our case it's overlay animations consisting of hundreds of frames. These show some kind of animated plots or illustrations on top of our 3D renders. Some animations now take two seconds to load and they consume hundreds of MBs of RAM. So I guess I will have to address that problem at the root (the plug-in). Christian 2015-01-09 12:53 GMT+01:00 Robert Osfield robert.osfi...@gmail.com: Hi Chrisitan, How big gif's are you trying to handle. With the gif plugin my assumption has been the the aninated gifs would be small enough that storing in memory wouldn't be that costly. I have no objection to having a separate thread handle reading as an option - if you are willing to code it. However, it's not a big issue w.r.t memory usage then I'd say just live it as is. Robert. On 8 January 2015 at 15:51, Christian Buchner christian.buch...@gmail.com wrote: Hi, there's a couple of things I noticed with the GIF plugin. When it encounters animated GIFs, it will decode the entire animation into a sequence of images in RAM. This process appears to be synchronous (it blocks the calling thread), and it will consume a lot of memory. I was wondering if there is any interest in improving this. For example we could shift the decoding to when an image is actually supposed to be rendered to screen. We still need to make an initial first pass over the file in order to determine the total number of frames and their respective playout timestamps - but I think we could skip the decoding pass. Christian ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Get actual node path of OpenSceneGraph custom osg::Drawable
Hi Mark, getNodePath in visitor should return path being taken. Regards Sergey On Wed, Dec 31, 2014 at 12:47 AM, Mark Schlosser markschlos...@gmail.com wrote: I am writing a custom osg::Drawable class which needs to calculate its current distance from the camera's eye when its drawImplementation method is called. It needs to do this in order to determine the optimal number of facets for rendering. The difficulty is that my drawable can have any number of osg::Transform nodes as parents. I need to apply the transformation of the actual parent that is being applied to the drawable. Using osg::Node::getParents() and/or getParentalNodePaths(), I can determine all possible paths to this drawable, but not the path that was taken. Is there any way to determine this in OpenSceneGraph? I have dug through the examples and documentation and have not found exactly what I require. -Mark ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Get actual node path of OpenSceneGraph custom osg::Drawable
Hi Mark,
I'm little bit confused,
here you ask for concrete path
I need to apply the transformation of the actual parent that is being
applied to the drawable.
and visitor gets
/** Get the non const NodePath from the top most node applied down
* to the current Node being visited.*/
NodePath getNodePath() { return _nodePath; }
so it is not potential nodePath, but realized one in a traversal
it does not return potential transforms as per your
So the proper way to get the node path of potential transforms
as for
Is there any way to get the actual node path from inside the
drawImplementation method inside the drawable, or does OSG not have enough
information at that point to know the node path?
I think, if you don't want somehow to store nodepath from say update
callback ( which will go before draw callback and have same selection logic
of parents as in your draw callbacks) you might force to traverse nodes
in your draw callback to get current node path using approach taken here
http://globemaster.cs.uah.edu/labs/CS582/REL-2.5.0/src/dtCore/transformable.cpp
(look for CollectParentPaths class use in this code) during accept
traversal with CollectParentPaths you would apply the same selection logic
as you did for selecting drawing parents.
maybe there are more elegant ways to perform what you need, then maybe some
else will provide better advice.
Regards
Sergey
On Wed, Dec 31, 2014 at 4:35 PM, Mark Schlosser markschlos...@gmail.com
wrote:
So the proper way to get the node path of potential transforms for a
drawable is to use a NodeVisitor to drill down each possible path to the
drawable?
Here is what I have:
Root
Transform0 Transform1 Transform2 Transform3
GeodeWithCustomDrawable
where all the transforms are parents to the geode.
Is there any way to get the actual node path from inside the
drawImplementation method inside the drawable, or does OSG not have enough
information at that point to know the node path?
Will I need to visit the nodes myself and call drawImplementation myself?
-Mark
On Wed, Dec 31, 2014 at 4:01 AM, Sergey Kurdakov sergey.fo...@gmail.com
wrote:
Hi Mark,
getNodePath in visitor should return path being taken.
Regards
Sergey
On Wed, Dec 31, 2014 at 12:47 AM, Mark Schlosser markschlos...@gmail.com
wrote:
I am writing a custom osg::Drawable class which needs to calculate its
current distance from the camera's eye when its drawImplementation method
is called. It needs to do this in order to determine the optimal number of
facets for rendering.
The difficulty is that my drawable can have any number of osg::Transform
nodes as parents. I need to apply the transformation of the actual parent
that is being applied to the drawable. Using osg::Node::getParents() and/or
getParentalNodePaths(), I can determine all possible paths to this
drawable, but not the path that was taken.
Is there any way to determine this in OpenSceneGraph? I have dug through
the examples and documentation and have not found exactly what I require.
-Mark
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Re: [osg-users] Darker image when something is drawn on a texture.
Hi
the usual practice is to place opengl calls after all attribs are saved,
after OpenGL code is finished - they all are restored
glPushAttrib( GL_ALL_ATTRIB_BITS );
glPushClientAttrib(GL_CLIENT_ALL_ATTRIB_BITS);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glMatrixMode(GL_TEXTURE);
glPushMatrix();
//your OpenGL code here
glMatrixMode(GL_TEXTURE);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glPopClientAttrib();
glPopAttrib();
Regards
Sergey
On Mon, Dec 29, 2014 at 2:42 PM, Marcin Kolny marcin.ko...@gmail.com
wrote:
Hi,
I've got a following code:
Code:
viewer = new osgViewer::Viewer;
viewer-setCameraManipulator(new osgGA::TrackballManipulator);
window = viewer-setUpViewerAsEmbeddedInWindow(0,0,716,572);
viewer-getCamera()-setClearMask(GL_DEPTH_BUFFER_BIT);
// ...
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();
GLfloat verts[] = { -1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f };
GLfloat texcoords[] = { 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f };
glEnable (GL_TEXTURE_2D);
glBindTexture (GL_TEXTURE_2D, texture_id);
glClientActiveTexture (GL_TEXTURE0);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState (GL_TEXTURE_COORD_ARRAY);
glVertexPointer (2, GL_FLOAT, 0, verts);
glTexCoordPointer (2, GL_FLOAT, 0, texcoords);
glDrawArrays (GL_TRIANGLE_FAN, 0, 4);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisable(GL_TEXTURE_2D);
osg::Geometry* geom = new osg::Geometry;
osg::Vec3Array* vertices = new osg::Vec3Array;
vertices-push_back(osg::Vec3d(0, 30, 0));
vertices-push_back(osg::Vec3d(width, 30, 0));
geom-setVertexArray(vertices);
geom-addPrimitiveSet(new osg::DrawArrays(GL_LINES,0,vertices-size()));
viewer-setSceneData(geom);
viewer-realize();
if (viewer.valid()) viewer-frame();
It loads texture with identifier texture_id, draw it (using pure opengl),
and later I try to draw line on this texture. Unfortunately, when I draw
this line, my image is becoming darker. When I remove line
Code:
viewer-setSceneData(geom);
output image has normal colours, but obviously I don't have my line there.
What's wrong with my code, and why my image is darker? I attach also two
images (it's not a whole image, but only a part of it) to show you the
difference.
Thank you!
Cheers,
Marcin[/code]
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Re: [osg-users] Transparent Window Application [SOLVED]
Hi Roy, I think the next step is just to run osg with simple dx app. I think that osg can be combined with dx via *GraphicsWindowEmbedded* and https://sites.google.com/site/snippetsanddriblits/OpenglDxInterop so - that osg renders inside pair dxRenderer-BeginGlDraw(); dxRenderer-EndGlDraw(); if you would achive that, then you would need to subclass those dx calls via intercept dll which provide necessary info to OpenglDxInterop https://sites.google.com/site/snippetsanddriblits/OpenglDxInterop code the other way is to use ANGLE as it will translate opengl es calls to dx - but I think it will be few month hacking vs a week/two with above approach. Regards Sergey On Sun, Dec 14, 2014 at 3:10 PM, Roy Arents osgfo...@tevs.eu wrote: Hi, I've found another example which allows drawing over directx: http://www.codeforfun.it/2012/08/30/directx-hooking-with-a-proxy-dll/ This one works for splash screen and menu's as well. Now the second step seems more difficult as I expected... How to add osg on top of it. There are quite a few solutions on how to add openGL on top of it, but I have not been succesfull with them so far. Perhaps someone can point me in the right direction? Thank you very much! Roy -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62050#62050 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Transparent Window Application [SOLVED]
Hi Roy, as you use forum I do not see your email address ( otherwise I would likely send personal message ) but anyway, might be that someone else will benefit of such discussion in future in similar situation. one quite unusual, but useful example for your purposes was discussed in discussion group some time ago - to use gldirect to run osg to translate opengl calls to dx, the example claimed to be working well ( I did not try it though as it was over 1 gb size and was offered over very slow connection ) You may try this way as it proved to be working for dx9 and thus might prove most easy way to follow in case you do not use shaders in your osg output as gldirect supports only fixed pipeline ( gldirect could be taken here https://raw.githubusercontent.com/bfosterjr/windowsrtdev/master/libs/gldirect5/src/gldirect5.7z ) otherwise there are quite few examples to use nv extention besides a lib I already linked there is also: https://github.com/tliron/opengl-3d-vision-bridge/blob/master/opengl_3dv.c While to insert it into already existing code of the game might be intimidating the idea is quite straightforward: dx creates a texture which is then shared with opengl as fbo and as osg supports rendering to fbo a code to glue rendering might be inserted to osg setting rendering target as that provided by dx fbo, after rendering to fbo, the texture can be used in dx, such as being attached for hud over already rendered scene. Regards Sergey On Sun, Dec 14, 2014 at 8:07 PM, Sergey Kurdakov sergey.fo...@gmail.com wrote: Hi Roy, I think the next step is just to run osg with simple dx app. I think that osg can be combined with dx via *GraphicsWindowEmbedded* and https://sites.google.com/site/snippetsanddriblits/OpenglDxInterop so - that osg renders inside pair dxRenderer-BeginGlDraw(); dxRenderer-EndGlDraw(); if you would achive that, then you would need to subclass those dx calls via intercept dll which provide necessary info to OpenglDxInterop https://sites.google.com/site/snippetsanddriblits/OpenglDxInterop code the other way is to use ANGLE as it will translate opengl es calls to dx - but I think it will be few month hacking vs a week/two with above approach. Regards Sergey On Sun, Dec 14, 2014 at 3:10 PM, Roy Arents osgfo...@tevs.eu wrote: Hi, I've found another example which allows drawing over directx: http://www.codeforfun.it/2012/08/30/directx-hooking-with-a-proxy-dll/ This one works for splash screen and menu's as well. Now the second step seems more difficult as I expected... How to add osg on top of it. There are quite a few solutions on how to add openGL on top of it, but I have not been succesfull with them so far. Perhaps someone can point me in the right direction? Thank you very much! Roy -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62050#62050 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Transparent Window Application [SOLVED]
Hi Roy, I also found, that not only hooks might work see http://graphics.stanford.edu/~mdfisher/D3D9Interceptor.html and http://www.codeguru.com/cpp/g-m/directx/directx8/article.php/c11453/Intercept-Calls-to-DirectX-with-a-Proxy-DLL.htm for old dx9 games (possibly there are similar dx10/11 proxy dlls ) for OpenGL games there is glIntercept ( seems like it is possible to have your render code inserted in swap buffers implementation in glIntercept. You will need to save complete stack, render a full screen quad with transparent background and maybe you will need to force osg to be single threaded at this stage ), so good luck, it will be interesting to know how it turned out. Regards Sergey On Thu, Dec 4, 2014 at 5:57 PM, Roy Arents osgfo...@tevs.eu wrote: Hi Sergey, Thanks for your help. I'll try to use them and hopefully post a solution soon. Thanks! Roy -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61981#61981 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Transparent Window Application [SOLVED]
Hi Roy, if you game runs full screen and cannot do anything else even with 'full screen emulation' ( such that you render game full screen but in windowed mode ) the answer might be - an old trick to use hooks to write overlays for games ( search on the web - the trick is used in number of game hacks ) now if you use dx for game and osg for overlay there could be additional problem, which you would need to solve with https://sites.google.com/site/snippetsanddriblits/OpenglDxInterop - such that you add additional overlay as described above, but the texture for this overlay is provided by osg. Regards Sergey On Wed, Dec 3, 2014 at 7:20 PM, Roy Arents osgfo...@tevs.eu wrote: Hi, Great to see that you got around the transparent mouse clicks as well. I just needed it yesterday and again your method works great. Unfortunatly I have another problem though... I would like to place this application on top of another full-screen windows (game). I didn't think of it earlier, but it does not work (perhaps this should be obvious). Can you think of any workarounds to make this work? Unfortunatly it is no option to run the game in windowed mode, since I'm using it in combination with the oculus rift and tridef to make te game work for it. Hopefully there is another workaround... As always thanks for your help! Cheers, Roy -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61965#61965 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] My first OSG application
Hi Guy, google osg Using multiple cameras ( for two areas in a window ) osg HUD quad or just osg HUD ( for a quad with a texture ,looks like you want it to always face user in orthographic projection ) Regards Sergey On Sun, Nov 23, 2014 at 2:31 PM, Guy Rosenthal guyro...@gmail.com wrote: Hi, I a newbee with OpenSceneGraph, Trying to write a really simple app doing the following: a single window is divided to 2: one part has a model that is rendered from different views according to mouse events (click,drag,...) The second part has simply an image. I really got lost with the variety of examples and tools. can someone give me some guidlines for this task?(what classes to use, maybe a similar example available in the database) ... Thank you! Cheers, Guy -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61800#61800 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Adding textures on platonic solid
Hi Drake, so few links with solutions to similar problems for you as seems you did not make progress http://forum.openscenegraph.org/viewtopic.php?t=7720view=next http://lists.openscenegraph.org/pipermail/osg-users-openscenegraph.org/2009-February/023872.html ( has some russian comments but you could google translate them ) Regards Sergey On Fri, Nov 14, 2014 at 1:31 PM, Drake Aldwyn azrai...@gmail.com wrote: Hi, all! Guys, I need your help! I’ve just start learn OSG so can’t figure it out by myself. I want to add custom textures to loaded models (all model is platonic solid and loaded from .3ds file). Is there any path to apply texture (loaded from custom png file ) to these models properly? I.e. using attached model of cube and attached image as texture. I can't just attach texture to model in 3ds max, because goal is to making possibly change all texture on object by changing image. Thank you! Cheers, Drake Aldwyn -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61635#61635 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Importing Animations from 3ds Max 2015
Hi Chris
I think you need this thread
http://forum.openscenegraph.org/viewtopic.php?t=8161view=next ( xml file
which is not allowed to be downloaded is duplicated in Sat Apr 02, 2011
1:12 pm message )
Regards
Sergey
On Fri, Nov 14, 2014 at 11:48 AM, Chris Hidden ch...@erghis.com wrote:
Hey everyone
So I've been doing a lot of digging trying to figure out how to get
Animations over from 3ds Max to OSG. I have 3 models in my 3ds max scene.
I use a timeline to seperate 2 animations. I have also saved the
animations in 3ds max using: Animations-Save Animation. It saves it as a
special XML format: .xaf file it appears.
As far as I can tell there is not a simple way. I can export the file
directly to osg or osgb format using the exporter I have installed in 3ds
Max using this plug in:
http://sourceforge.net/projects/osgmaxexp/
However, when I run this and gather the animation list from the file I get
nothing:
Code:
osgAnimation::BasicAnimationManager * manager =
dynamic_castosgAnimation::BasicAnimationManager*(node-getUpdateCallback());
if (!manager)
{
std::string exit;
std::cout No animations std::endl;
std::cin exit;
return 1;
}
const osgAnimation::AnimationList animations =
manager-getAnimationList();
for (unsigned int i = 0 ; i animations.size(); i++)
{
const std::string name = animations[i]-getName();
manager-playAnimation(animations[i].get());
std::cout name std::endl;
}
Ok, so apparently the .3ds max plug in does not support exporting my
animations properly.
My next step was to try and just load the .3ds file. But again, none of
my animations are showing up.
Then I read up on osgconv. I converted my .max files to osg, obj and
tried those... with no luck. I still get no animations read from
getAnimationList().
After that I tried exporting to .fbx format. That originally didn't
work. I had to do a lot more reading. After collapsing all of my auto key
animations into single key frames under Motion-Trajectories AND: when
exporting to .FBX from 3DS Max Under -Animation-Bake Animation I give
the range of my animation timeline, I was then able to see an animation
being played on screen.
Now the problem is it plays the first animation and then the second. I
have no way of splitting the two animations. The output in my console from
cout name was take001.
I did some more reading and found someone who had written a script
http://forum.openscenegraph.org//files/anisplit_138.cpp that looks like
he specifically coded it to the fellows animation. So I would have to go
in and edit my own XML file to do this.
Finally I also read that OSG supports Blender animations. This is great,
but I have already done all my work in 3DS max and am not familiar with
Blender.
Is this really the only way to get animations out of 3DS MAX? Am I
missing some plug in or steps?
Aside from this the only other solution I see is exporting a different
.fbx model for each one of the animations I want to create. Cumbersome :p
If I wanted to have several states of animations in my models, such as for
a character or hands. how would I even be able to manage this working
in 3DStudio Max?
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Re: [osg-users] Adding textures on platonic solid
Hi Zaur, you can change texture even if you have exported object from 3DS max, but uv texture coordinated will be preserved in a model and it's convenient as you might try that another texture in max too. search the forum (ex via google ) for how to change texture ( it is done in callback ). Regards Sergey On Fri, Nov 14, 2014 at 12:45 PM, Drake Aldwyn azrai...@gmail.com wrote: Hi, all! Guys, I need your help! I’ve just start learn OSG so can’t figure it out by myself. I want to add custom textures to loaded models (all model is platonic solid and loaded from .3ds file). Is there any path to apply texture (loaded from custom png file ) to these models properly? I.e. using attached model of cube and attached image as texture. I can't just attach texture to model in 3ds max, because goal is to making possibly change all texture on object by changing image. Thank you! Cheers, Zaur -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61635#61635 Attachments: http://forum.openscenegraph.org//files/cube_194.zip ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Turn a line path to spheres path
Hi, did you try instanced geometry? ( google: openscenegraph geometry instancing ) regards Sergey On Fri, Nov 14, 2014 at 11:07 PM, Vinicius Schmidt osgfo...@tevs.eu wrote: Hi, I have an array of lines to mark where an object passed, but for reasons of visual pollution I need to turn those lines into a group of dots, or spheres. What is the best way to make it? I've tried to create a new geode for each sphere, but this solution isn't functional. Is there a way to just mark a point where it would connect my lines? To make things more clear, that is what I have now (the dots are the places where my object visited): . \._._. What I wanted is to just have those places marked. Could someone give me some help? Thank you! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61646#61646 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Turn a line path to spheres path
Hi Vinicius
I think that http://3dcgtutorials.blogspot.com/search/label/Instancing (
read from bottom to top ) explain it quite well.
you might pack positions either to Uniform Buffer Objects
layout(std140) uniform instanceData
{
mat4 instanceModelMatrix[MAX_INSTANCES];
};
or to texture, and the texture can be dynamically updated for your shader
instancing,
alternatively you might use geometry shader to generate spheres at points
of interest.
Regards
Sergey
On Sat, Nov 15, 2014 at 12:26 AM, Vinicius Schmidt osgfo...@tevs.eu wrote:
Hi Sergey,
I think it's not what I need or I didn't find an example to apply to my
problem.
What I have is an array of positions, and I'm drawing the path with this:
Code:
for (int i = 0; i dr-agents.size(); i++) {
dr-agents[i]-getPath()-dirty();
dr-agents[i]-getArrayLines()-setFirst(0);
dr-agents[i]-getArrayLines()-setCount(dr-agents[i]-getPath()-size());
}
Now instead to draw the lines from position 0 to position N, I'd like to
draw a dot or sphere in all these N positions, without line links.
Could you give me some code sample?
Thanks
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Re: [osg-users] iOS GLES2 : VERTEX glCompileShader FAILED
Hi,
I heard of some work being done to support automatic shaders (in private
talks, not sure I'm allowed to provide further details), which
transparently emulate fixed pipeline for osg, but not sure of it's state or
when it will be available to public,
currently osgUtil ShaderGen is a way to start with and also
osgEarth/ShaderGenerator.cpp might be of some help.
Regards
Sergey
On Thu, Nov 13, 2014 at 3:44 PM, Liu Xiao skyl...@126.com wrote:
Hi,
I would like to try the osgjs plugin. But as my application need to show
all fbx files users provide. I cannot write shaders for every 3d models.
Is there anyway I can do this?
Thanks!
Sergey Kurdakov wrote:
Hi Liu,
as you already indicated in other posts - you have read my advice to
other people in this situation
And here I repeat it use Cedrik Pinson osgjs format ( exporter for osg
converter is here
https://github.com/cedricpinson/osg/tree/master/src/osgPlugins/osgjs (
https://github.com/cedricpinson/osg/tree/master/src/osgPlugins/osgjs) )
it looks very suitable for OpenGL ES 2.0 models. To use it, though, you
will need to write your own loader
Regards
Sergey
On Mon, Nov 10, 2014 at 1:23 PM, Liu Xiao () wrote:
Thanks ! That is really a simple and nice example for me, I will try
it and feedback when I get succeed.
I think your solution is loading texture separatly , while my osg file
is binding with texture. I donot know how to convert fbx to osg format for
external texture file.
However, the following shader works for my young.osg file here :
Code:
static const char gVertexShader1[] =
varying vec2 v_texCoord;
n
void main() {
n
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
n
v_texCoord = gl_MultiTexCoord0.xy;
n
}
n;
static const char gFragmentShader1[] =
varying mediump vec2 v_texCoord;
n
uniform sampler2D sam;
n
void main() {
n
gl_FragColor = texture2D(sam, v_texCoord);
n
}
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Re: [osg-users] iOS GLES2 : VERTEX glCompileShader FAILED
Hi Liu,
as you already indicated in other posts - you have read my advice to other
people in this situation
And here I repeat it use Cedrik Pinson osgjs format ( exporter for osg
converter is here
https://github.com/cedricpinson/osg/tree/master/src/osgPlugins/osgjs ) it
looks very suitable for OpenGL ES 2.0 models. To use it, though, you will
need to write your own loader
Regards
Sergey
On Mon, Nov 10, 2014 at 1:23 PM, Liu Xiao skyl...@126.com wrote:
Thanks ! That is really a simple and nice example for me, I will try it
and feedback when I get succeed.
I think your solution is loading texture separatly , while my osg file is
binding with texture. I donot know how to convert fbx to osg format for
external texture file.
However, the following shader works for my young.osg file here :
Code:
static const char gVertexShader1[] =
varying vec2 v_texCoord; \n
void main() {
\n
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
\n
v_texCoord = gl_MultiTexCoord0.xy;
\n
}
\n;
static const char gFragmentShader1[] =
varying mediump vec2 v_texCoord;
\n
uniform sampler2D sam;
\n
void main() {
\n
gl_FragColor = texture2D(sam, v_texCoord);
\n
}
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Re: [osg-users] ComputeThread in parallel to Viewer's RenderThreads
Hi Markus, it's difficult to figure out while you want exactly compute shaders, but with OpenCL you might have several OpenCL threads - one which will communicate with OpenGl and another one which will perform independent computations https://software.intel.com/en-us/articles/opencl-and-opengl-interoperability-tutorial Regards Sergey On Sun, Nov 9, 2014 at 4:16 PM, Markus Hein mah...@frisurf.no wrote: Hello All, maybe someone can point me to example or osg-users discussion where data computation is done in parallel to scene rendering. Maybe someone has done similar stuff before, I could not find the right answer after searching in osg example code. I want to realize a pure OSG based application , where a compute thread is using compute shaders, updating data stored in BufferObjects stored in GPU memory. This thread must run very straight at high and predictable framerate for numerical precision. In addition, the app will have one or multiple viewer threads, rendering the scene at fastest possible framerate. The visual scene will use the data stored in GPU memory that is updated by the compute thread for rendering (avoiding data transfer to host and back). I see that osg viewer.frame() is dispatching rendering of the scene , but fastest possible framerate is given by viewers framerate. Is there a way to realize a thread that doesn't depend on viewers framerate for fast and predictable computation ? I expect that my viewer threads will run at 20-60 Hz, but the compute thread must run 60 Hz, eventually locked to some given framerate. Thanks for some info! regards, Markus ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] ComputeThread in parallel to Viewer's RenderThreads
Hi Markus, thanks for more details. Unfortunately I cannot provide answers, but hope additional information would lead to answer by someone else who is more knowledgeable in this area. Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] iOS GLES2 : VERTEX glCompileShader FAILED
Hi Liu, use setUseVertexAttributeAliasing as Robert recently explained for similar question === The aliasing of gl_* uniforms to osg_* equivialants is not done by default. You can switch it one yourself if required though via osg::State, from the osgsimplegl3 example: // for non GL3/GL4 and non GLES2 platforms we need enable the osg_ uniforms that the shaders will use, // you don't need thse two lines on GL3/GL4 and GLES2 specific builds as these will be enable by default. gc-getState()- setUseModelViewAndProjectionUniforms(true); gc-getState()-setUseVertexAttributeAliasing(true); In your own shaders if you are building against GL1/2 (default build of OSG) then you can simply use the gl_* parameters. Also have a look at the shaders in OpenSceneGraph-Data and the osgshaders example. === Regards Sergey On Fri, Nov 7, 2014 at 12:14 PM, Liu Xiao skyl...@126.com wrote: Hi, When I trying to use the osg 3.2.1 (with OSG_GLES2_AVAILABLE:BOOL=ON ) example_osgViewerIPhone, I got the following errors: Code: VERTEX glCompileShader FAILED VERTEX Shader infolog: ERROR: 0:6: Use of undeclared identifier 'gl_Vertex' ERROR: 0:7: Use of undeclared identifier 'gl_FrontColor' FRAGMENT glCompileShader FAILED FRAGMENT Shader infolog: ERROR: 0:4: 'vec4' : declaration must include a precision qualifier for type ERROR: 0:5: Use of undeclared identifier 'base' ERROR: 0:6: Use of undeclared identifier 'color' ERROR: 0:6: Use of undeclared identifier 'gl_Color' ERROR: 0:7: Use of undeclared identifier 'color' glLinkProgram FAILED Program infolog: ERROR: One or more attached shaders not successfully compiled My Config file is as follows: Code: #ifndef OSG_CONFIG #define OSG_CONFIG 1 /* #undef OSG_NOTIFY_DISABLED */ /* #undef OSG_USE_FLOAT_MATRIX */ /* #undef OSG_USE_FLOAT_PLANE */ #define OSG_USE_FLOAT_BOUNDINGSPHERE #define OSG_USE_FLOAT_BOUNDINGBOX #define OSG_USE_REF_PTR_IMPLICIT_OUTPUT_CONVERSION /* #undef OSG_USE_UTF8_FILENAME */ #define OSG_DISABLE_MSVC_WARNINGS /* #undef OSG_GL1_AVAILABLE */ /* #undef OSG_GL2_AVAILABLE */ /* #undef OSG_GL3_AVAILABLE */ /* #undef OSG_GLES1_AVAILABLE */ #define OSG_GLES2_AVAILABLE /* #undef OSG_GL_LIBRARY_STATIC */ /* #undef OSG_GL_DISPLAYLISTS_AVAILABLE */ /* #undef OSG_GL_MATRICES_AVAILABLE */ /* #undef OSG_GL_VERTEX_FUNCS_AVAILABLE */ /* #undef OSG_GL_VERTEX_ARRAY_FUNCS_AVAILABLE */ /* #undef OSG_GL_FIXED_FUNCTION_AVAILABLE */ #endif Can anyone help with this? Or is there any examples of osg ios can I learn? Thank you! Cheers, Liu -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61538#61538 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] iOS GLES2 : VERTEX glCompileShader FAILED
Hi Liu,
consider this simple pseudo code example ( just fix
createTexturedQuadGeometry in code below so that it has #if
defined(OSG_GLES1_AVAILABLE) || defined(OSG_GLES2_AVAILABLE) line instead of
#if defined(OSG_GLES1_AVAILABLE) || !defined(OSG_GLES2_AVAILABLE) ) )
have u_Texture sampler in your shader
uniform sampler2D u_Texture;
then create geode
osg::Geode* geode = new osg::Geode();
osg::Program* program = new osg::Program();
osg::Shader* vert= new osg::Shader(osg::Shader::VERTEX,
gVertexShader);
osg::Shader* frag= new osg::Shader(osg::Shader::FRAGMENT,
gFragmentShader );
program-addShader(vert);
program-addShader(frag);
geode-addDrawable(makePlain ());
osg::StateSet* pStateSet = geode-getOrCreateStateSet();
osg::Image* pImage = new osg::Image;
load image here, now
osg::Texture2D* pTex = new osg::Texture2D();
pTex-setFilter( pTex-MIN_FILTER,pTex-LINEAR);
pTex-setFilter( pTex-MAG_FILTER,pTex-LINEAR);
pTex-setImage(0, pImage);
pStateSet-setTextureAttribute( 0, pTex, osg::StateAttribute::ON );
pStateSet-addUniform(new osg::Uniform(u_Texture, 0));
pStateSet-setAttribute(program);
makePlain could be as following:
osg::Geometry*
makePlain()
{
osg::ref_ptrosg::Geometry geom= osg::createTexturedQuadGeometry(
osg::Vec3(-0.5f, 0.0f,-0.5f),
osg::Vec3(1.0f,0.0f,0.0f),
osg::Vec3(0.0f,0.0f,1.0f) );
if( geom == NULL )
geom = new osg::Geometry;
geom-setUseVertexBufferObjects(true);
return( geom.release() );
}
this simple example should work, then you should move further.
Regards
Sergey
On Fri, Nov 7, 2014 at 3:56 PM, Liu Xiao skyl...@126.com wrote:
Thanks so much for your quick reply , it really helps.
Also this post gives me a good example of shader:
http://forum.openscenegraph.org/viewtopic.php?t=6482
But still I have problem on drawing the texture.
Sergey Kurdakov wrote:
Hi Liu,
use setUseVertexAttributeAliasing as Robert recently explained for
similar question
===
The aliasing of gl_* uniforms to osg_* equivialants is not done by
default. You can switch it one yourself if required though via osg::State,
from the osgsimplegl3 example:
// for non GL3/GL4 and non GLES2 platforms we need enable the osg_
uniforms that the shaders will use,
// you don't need thse two lines on GL3/GL4 and GLES2 specific
builds as these will be enable by default.
gc-getState()-setUseModelViewAndProjectionUniforms(true);
gc-getState()-setUseVertexAttributeAliasing(true);
In your own shaders if you are building against GL1/2 (default build of
OSG) then you can simply use the gl_* parameters.
Also have a look at the shaders in OpenSceneGraph-Data and the
osgshaders example.
===
Regards
Sergey
On Fri, Nov 7, 2014 at 12:14 PM, Liu Xiao () wrote:
Hi,
When I trying to use the osg 3.2.1 (with OSG_GLES2_AVAILABLE:BOOL=ON )
example_osgViewerIPhone, I got the following errors:
Code:
VERTEX glCompileShader FAILED
VERTEX Shader infolog:
ERROR: 0:6: Use of undeclared identifier 'gl_Vertex'
ERROR: 0:7: Use of undeclared identifier 'gl_FrontColor'
FRAGMENT glCompileShader FAILED
FRAGMENT Shader infolog:
ERROR: 0:4: 'vec4' : declaration must include a precision qualifier
for type
ERROR: 0:5: Use of undeclared identifier 'base'
ERROR: 0:6: Use of undeclared identifier 'color'
ERROR: 0:6: Use of undeclared identifier 'gl_Color'
ERROR: 0:7: Use of undeclared identifier 'color'
glLinkProgram FAILED
Program infolog:
ERROR: One or more attached shaders not successfully compiled
My Config file is as follows:
Code:
#ifndef OSG_CONFIG
#define OSG_CONFIG 1
/* #undef OSG_NOTIFY_DISABLED */
/* #undef OSG_USE_FLOAT_MATRIX */
/* #undef OSG_USE_FLOAT_PLANE */
#define OSG_USE_FLOAT_BOUNDINGSPHERE
#define OSG_USE_FLOAT_BOUNDINGBOX
#define OSG_USE_REF_PTR_IMPLICIT_OUTPUT_CONVERSION
/* #undef OSG_USE_UTF8_FILENAME */
#define OSG_DISABLE_MSVC_WARNINGS
/* #undef OSG_GL1_AVAILABLE */
/* #undef OSG_GL2_AVAILABLE */
/* #undef OSG_GL3_AVAILABLE */
/* #undef OSG_GLES1_AVAILABLE */
#define OSG_GLES2_AVAILABLE
/* #undef OSG_GL_LIBRARY_STATIC */
/* #undef OSG_GL_DISPLAYLISTS_AVAILABLE */
/* #undef OSG_GL_MATRICES_AVAILABLE */
/* #undef OSG_GL_VERTEX_FUNCS_AVAILABLE */
/* #undef OSG_GL_VERTEX_ARRAY_FUNCS_AVAILABLE */
/* #undef OSG_GL_FIXED_FUNCTION_AVAILABLE */
#endif
Can anyone help with this? Or is there any examples of osg ios can I
learn?
Thank you!
Cheers,
Liu
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Re: [osg-users] calculate the scale of a pixel
Hi Anton, nothing prevents you to use the same code with osg just get osg::Matrixd viewMatrix=osgcamera-getViewMatrix(); osg::Matrixd projMatrix=osgcamera-getProjectionMatrix(); GLint viewport[4]; viewport[0]=osgcamera-getViewport()-x(); viewport[1]=osgcamera-getViewport()-y(); viewport[2]=osgcamera-getViewport()-width(); viewport[3]=osgcamera-getViewport()-height(); then you might pass viewMatrix.ptr() projMatrix.ptr() viewport to gluUnProject function Regards Sergey On Thu, Oct 30, 2014 at 4:28 PM, AntonPopov anton.po...@mabi-robotic.com wrote: Hi, I would like to calculate the scale of a pixel. In a program in OpenGL, I hate it posted a Function. How can I make it for OSG? Code: Public Function get_Massstab() As Double Dim modelmatrix(15) As Double Dim projMatrix(15) As Double Dim viewMatrix(3) As Integer Dim tx1 As Double Dim ty1 As Double Dim tz1 As Double Dim tx2 As Double Dim ty2 As Double Dim tz2 As Double Dim dist As Double Gl.glGetDoublev(Gl.GL_MODELVIEW_MATRIX, modelmatrix) Gl.glGetDoublev(Gl.GL_PROJECTION_MATRIX, projMatrix) Gl.glGetIntegerv(Gl.GL_VIEWPORT, viewMatrix) gluUnProject(0, 0, 0, modelmatrix, projMatrix, viewMatrix, tx1, ty1, tz1) gluUnProject(0, 1, 0, modelmatrix, projMatrix, viewMatrix, tx2, ty2, tz2) 'einen Pixel dist = Math.Sqrt((tx1 - tx2) ^ 2 + (ty1 - ty2) ^ 2 + (tz1 - tz2) ^ 2) Return dist End Function Thank you! Cheers, Anton[/code] -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61462#61462 Attachments: http://forum.openscenegraph.org//files/size2_801.png http://forum.openscenegraph.org//files/size1_776.png ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 转发: Web browser crash when OSGEarth loading large model
Hi Chris, concerning have you considered compiling osg and osgEarth 9and their dependencies) via Emscripten into Javascript/WebGL? I still plan to put an update to my port of osg to emscripten, so it is more useful, than in current state, possibly will port osgEarth ( as it is one of my priority), just was forced to delay my efforts, but currently move some more with a port. Anyway. having some experience with such type of activity, I could say that the effort required (even considering I put everything I now have, besides what I already released last year ) would be much ( several times ) more, than to develop/debug ActiveX ( I coded ActiveX so could compare ). one problem for porting osg+osgEarth for web is that there is need to write a new system for texture loading etc, because out of the box osg is not very suitable for online projects ( as it's main focus is desktop apps and to some extent smartphones, web is somewhat different). and also too big models could prove to be a problem for emscripten too. Regards Sergey On Wed, Oct 22, 2014 at 6:59 PM, Chris Hanson xe...@alphapixel.com wrote: Glen, have you considered compiling osg and osgEarth 9and their dependencies) via Emscripten into Javascript/WebGL? This would give you a cross-browser solution instead of an ActiveX solution. It won't be easy, but I think the result might be great. I don't know anyone who has used OSG+ActiveX=FireBreath, much less with osgEarth thrown into the mix. If you want to email me privately, I can talk to you about Emscripten. -- Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com http://www.alphapixel.com/ Training • Consulting • Contracting 3D • Scene Graphs (Open Scene Graph/OSG) • OpenGL 2 • OpenGL 3 • OpenGL 4 • GLSL • OpenGL ES 1 • OpenGL ES 2 • OpenCL Digital Imaging • GIS • GPS • osgEarth • Terrain • Telemetry • Cryptography • Digital Audio • LIDAR • Kinect • Embedded • Mobile • iPhone/iPad/iOS • Android @alphapixel https://twitter.com/alphapixel facebook.com/alphapixel (775) 623-PIXL [7495] ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Low frame rate ( Update Callback on 50 bones ).
Hi Chris,
one of the problem could be delays from sensors.
to make things better I would suggest to have a three (maybe two will be
enough, but generally an algo is such that it switches lists when either
'sensor' frame is finished and osg frame is finished - thus sensor frame
and osg frame are completely separate and this requires three similar lists
for sensor data ) lists which will store data from sensor - so that sensor
thread pushes data to list and osg reads another list - and you switch
pointers to lists everytime you make a frame() step - this way you don't
wait for sensor data and process it as fast as osg can, but you always have
a fresh data.
Regards
Sergey
On Tue, Oct 21, 2014 at 6:41 PM, Robert Osfield robert.osfi...@gmail.com
wrote:
Hi Chris,
How to optimize your application will depend on where the bottleneck is.
I'd suspect CPU, but as I don't have your application and data in front of
me I can't really provide any specific advice.
One thing I would suggest is making sure you are testing performance with
a release build. Debug builds, especially under Windows are very slow
indeed and will suggest bottlenecks that simply don't exist in final
applications.
Robert.
On 21 October 2014 15:20, Chris Hidden ch...@erghis.com wrote:
Hey everyone.
I've come a far way since my last post. Our application is reading
sensor data from the Leap Motion and we are interpreting this data and
using OSG to display the hand models on scene. The issue now is that
running on my laptop I get a tops of 20 fps. On other computers with lower
specs the fr is abysmal.
The way its set up right now is that we load the fbx model of a hand and
traverse through its nodes. If it finds a bone and if it is one of the
bones we want to affect we attach an updateCallback. The update callback
queries our data for a new position and the position is updated using a
matrix and then the new position is set:
Code:
osg::ref_ptrosgAnimation::Bonebone=
dynamic_castosgAnimation::Bone*(node);
if (bone)
{
ref_ptrosgAnimation::Bone parent
= bone-getBoneParent();
const osg::Matrix matrix
= _transforms.getMatrix();
_transforms.update
();
setBoneOrientations
();
setLocalMatrices
();
setLocalTranslationsAndRotations(parent, matrix);
if (parent)
bone-setMatrixInSkeletonSpace(fingerSpace *
fingerTranslation * parent-getMatrixInSkeletonSpace());
}
traverse(node, nv);
The setBoneOrientations(), setLocalMatrices() and
setLocalTranslationsAndRotation() are methods used to manipulate the data
so the it fits the position and rototaion on the screen properly. Basically
converting the data to osg coordinate spaces.
The viewer is basically just while(!viewer-done())
I believe in total we end up attaching a callback to about 40 - 50
bones. 20-25 on each hand. This doesn't feel like too much to process but
Im no expert... far from it. Is this the reason causing my low frame
rate? If so what are some steps or things to start looking at to improve
performance.
Thanks everyone!
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Re: [osg-users] OpenNI(Kinect) and osgAnimation
Hi Cledja I did not try kinect myself, but there are few osg-kinect projects which are supposed to work https://github.com/mrogowski/KinectDemo https://code.google.com/p/livescene/source/checkout http://code.sat.qc.ca/redmine/projects/spinframework try to look there. Regards Sergey On Tue, Oct 14, 2014 at 5:53 PM, Cledja Rolim cle...@yahoo.com.br wrote: Hi, I saw that this topic is a little bit old, but someone could help. I'm trying to animate an avatar with kinect too. Some parts works, like arms, head, but when I try to move the hands, they don't move. Is there someone who had success to animate an avatar with kinect that could help me? I think that as the hand has a lot of bones, something in the hierarchy doesn't work well. Thanks for any help. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61299#61299 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osg-users Digest, Vol 88, Issue 7
Hi yangzhongqiyzq
first if you want to be addressed by human name, please provide this in
your signature under post (anyway - as you might notice everyone here has
quite a distinct human name, so having a well recognizable, human name
which other can address is a right way to start talk in the list ),
another point - do not use reply to digest - it is very difficult to
follow, digests are just for reading - not for keeping discussions.
subscribe to separate messages and start new thread if you have a new
question.
do not pollute discussion with all day messages which you did not bother to
delete, nor changed header of your message.
and finally to respond
to access texture coordinates you need to pass it to shader via having in
vertex shader
varying vec2 v_TexCoordinate;
assigning it:
v_TexCoordinate = gl_MultiTexCoord0.st;
then using v_TexCoordinate in your pixel shader
Regards
Sergey
On Fri, Oct 10, 2014 at 1:44 PM, yangzhongqiyzq yangzhongqi...@163.com
wrote:
hi:group
how to set texture coordinates in osg shader?
I want to set texture coordinates to gl_Coordinates[0],how can I?
thanks！
At 2014-10-07 09:14:55, osg-users-requ...@lists.openscenegraph.org wrote:
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than Re: Contents of osg-users digest...
Today's Topics:
1. Re: How do I adapt the osgViewer::Viewer in order to have my
model in fullscreen mode? (Filipe P)
2. Re: LineSegmentIntersector bug? (weijianggood)
--
Message: 1
Date: Tue, 07 Oct 2014 00:24:17 +0200
From: Filipe P filipe.edu.pimen...@gmail.com
To: osg-users@lists.openscenegraph.org
Subject: Re: [osg-users] How do I adapt the osgViewer::Viewer in order
to have my model in fullscreen mode?
Message-ID: 1412634257.m2f.61...@forum.openscenegraph.org
Content-Type: text/plain; charset=UTF-8
Hi Robert,
thanks for your reply.
I guess it should be the setUpViewOnSingleScreen() call.
Unfortunately, the result was the same.
Could you please give me an example or hints that demonstrate a fullscreen
model or image?
Taking this problem, all the evaluation that I'm doing with OSG is going
very well.
I'm happy with the performance of this scene graph.
Thanks in advanced.
Best regards,
Filipe
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Message: 2
Date: Tue, 7 Oct 2014 09:15:28 +0800
From: weijianggood weijiangg...@163.com
To: osg-users osg-users@lists.openscenegraph.org
Subject: Re: [osg-users] LineSegmentIntersector bug?
Message-ID: 201410070915268413...@163.com
Content-Type: text/plain; charset=utf-8
Hello, Robert,
Thank you for the suggestion.
Currently, I am using osg3.0.1, intersector does not have the function
setPrecisionHint.
So I download the newest version of osg from svn, then compile it.
Finally,
I add the following line into my test code:
intersector-setPrecisionHint(osgUtil::Intersector::PrecisionHint::USE_DOUBLE_CALCULATIONS);
It worked. Woo!
Thanks again.
Rubby
From: Robert Osfield
Date: 2014-10-06 16:22
To: OpenSceneGraph Users
Subject: Re: [osg-users] LineSegmentIntersector bug?
HI ? Could you sign your post so we know how to address you :-)
From the description of the problem it looks likely to be a precision issue
where the line segment aligns right along the edge between two triangles
with neither triangle passing the test.
In the svn/trunk version of the OSG there is a
IntersectionVisitor::setPrecisionHint(PrecisionHint hint) method that you
can use to hint to the intersectors to use double maths. The
LineSegmentIntersector supports this.
Could you try this out to see if it helps?
Robert.
On 5 October 2014 09:51, weijianggood weijiangg...@163.com wrote:
Hi,
When i use LineSegmentIntersector in the following code.
there must be 8 lines. but after I run the code, only 7 lines exist.
int main( int argc, char** argv ){
float height = 5.f;
osg::ref_ptrosg::TessellationHints hints;
hints = new osg::TessellationHints;
hints-setDetailRatio(0.5f);
hints-setCreateBody(true);
hints-setCreateBottom(false);
hints-setCreateTop(false);
osg::ref_ptrosg::Geode mynode = new osg::Geode;
osg::ref_ptrosg::ShapeDrawable drawable =
Re: [osg-users] osgAndroidExampleGLES2 can not drag and zoom the model cow.osg.
Hi Xia, for loading cow.osg there was answer - there is need to write your own loader, which will pass textures to respective shaders to save osg models in OpenGL ES 2.0 friendly format there is a write plugin https://github.com/cedricpinson/osg/tree/master/src/osgPlugins/osgjs but you would have to write a loader yourself though older files from https://code.google.com/p/hogbox/ - you can retrieve older versions of files via source control app, as new code has little code for loaders, have some hints to help to write your own loader. Regards Sergey On Sun, Sep 28, 2014 at 7:06 AM, Xia Qingran qingran@gmail.com wrote: And there is another problem, the texture of cow.osg can not be loaded. I have copied the Images directory to my phone. ... Thank you! Cheers, Xia -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61191#61191 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [3rdparty] Animated 3d-models for OSG
Hi FBX has only one animation and this is well-known feature. no, it is well known that Max supports one animation in FBX, but FBX itself can support multiple animations and Motion Builder is a tool to work with them. Regards Sergey On Tue, Sep 23, 2014 at 1:50 PM, Maxim Kuzmin maxri...@mail.ru wrote: Hi, FBX has only one animation and this is well-known feature. Collada DAE has several animations, but osg parses them as one big animation. Osgconv converts this .dae file to .osgt file with one animation. So, it seems that this solution doesn't work. Is there any other way to get separate animations? Unfortunately, copy-paste method is unacceptable. Thank you! Cheers, Maxim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61119#61119 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [3rdparty] Animated 3d-models for OSG
Hi Maxim, But in my OSG program I still have only one animation in list. Why so? cannot say, maybe some else will help you with this. but possibly collada to fbx converter ( such as http://usa.autodesk.com/adsk/servlet/pc/item?siteID=123112id=20481519 ) will make a trick? Regards Sergey On Tue, Sep 23, 2014 at 5:36 PM, Maxim Kuzmin maxri...@mail.ru wrote: Thanks for reply, Sergey! I have another question now. I have .dae file with 3d-model made with 3ds Max. I've read its code and found out, that there are several animations inside library_animations tag. But in my OSG program I still have only one animation in list. Why so? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61128#61128 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [3rdparty] Animated 3d-models for OSG
Hi Maxim, I do not work with animations much for quite a while, so take this with grain of salt, Either fbx or collada files could have multiple animations. As they are text files ( as well as osgt itself ) - it is possible just do some cut an paste work with text editor. when being converted to osg - those animations will be preserved. Otherwise such packages as Motion Builder allow to put several animations. Regards Sergey On Mon, Sep 22, 2014 at 12:54 PM, Maxim Kuzmin maxri...@mail.ru wrote: Hi, I have .osgt file with valid 3d-model. It has one animation for all elements of the scene. As I saw in OSG examples (nathan.osg and bignathan.osg) it is possible to create a file with some separate animations. But as far as I know, 3dsmax and Blender can make animations in one timeline only, i.e. one animation per scene. So the question is - what 3d-editor was used to create nathan.osg and bignathan.osg? In other words, what 3d-editor may be used for creation of one scene with some separate animations? Thank you! Cheers, Maxim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61102#61102 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] About *BezierChannel
Hi Maxim, it's in osgWrappers, otherwise, if to search where LinearChannel occures in code - then you might, I think, find corresponding places outside of osgWrappers and place respective code there. So, you are right - it is not in main code, but code itself is there and can be reused. Regards Sergey On Wed, Sep 17, 2014 at 4:00 PM, Maxim Kuzmin maxri...@mail.ru wrote: Hi Sergey, Unfortunately, I didn't find such file. Thank you! Cheers, Maxim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61062#61062 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] About *BezierChannel
Hi Maxim, while I do not work much with animations, it looks like there is Double/Float CubicBezierChannel in osg . they are read in to graph from file in \serializers\osgAnimation\Animation.cpp so you might debug what goes wrong there as you have complete source code for osg. Regards Sergey On Tue, Sep 16, 2014 at 3:21 PM, Maxim Kuzmin maxri...@mail.ru wrote: OK, I can rephrase it once again :) Does OSG support 3d models with *BezierChannel and *StepChannel? Thank you! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61051#61051 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] Building OSG with OpenGL ES 2
Hi Joey
I achieved a result by using SDL 2 with EGL enabled,
see a sample app for a derived from osg project ( it is almost osg just
compiled to be used under emscripten ), hope the code helps
https://github.com/Kurdakov/emscripten_OSG/blob/master/examples/osgviewerSDL2EmscriptenSTATIC/osgviewerSDL2Emscripten.cpp
in case you are interested - I used ANGLE ad OpenGL ES 2.0 provider ( not
any wgl functions ) but to force SDL 2 to use ANGLE
in file \SDL-2.0.x\src\video\windows\SDL_windowsopengl.c in function
void WIN_GL_InitExtensions(_THIS)
I had to comment following lines
if (HasExtension(WGL_EXT_create_context_es2_profile, extensions)) {
_this-gl_data-HAS_WGL_EXT_create_context_es2_profile = SDL_TRUE; }
hope those steps are not intimidating.
Regards
Sergey
On Wed, Sep 10, 2014 at 9:22 AM, Chris Hanson xe...@alphapixel.com wrote:
Unfortunately, GLES2 on Windows is not so easy, because there really isn't
a GraphicWindowEGL implementation that would work on Windows.
I started writing one, but got bogged down and had to abandon it.
You might consider not compiling the GraphicsWindowWin32 code and just
using GraphicsWindowEmbedded and using EGL functions in your app's code to
create a context, and then pass it to OSG.
Also, we might be able to help you more if we knew what exactly you were
trying to accomplish in the end.
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[osg-users] Texture modes in OpenGL ES 2.0 in OSG
Hi Robert,
while it would be better to send a fix, but I would rather report it here,
because unsure what is best solution ( the code in discussion is both
relevant to dev version and latest stable version )
in osg/State header file there is a function
inline bool applyModeOnTexUnit(unsigned int
unit,StateAttribute::GLMode mode,bool enabled,ModeStack ms)
which applies texture mode for texture, say for Texture2D after getting
virtual GLenum getTextureTarget() const { return GL_TEXTURE_2D; }
it sets
glEnable(GL_TEXTURE_2D)
the problem is, that for OpenGL ES 2.0 enabling GL_TEXTURE_2D is a mistake.
And while some drivers might be permissive, my test with ANGLE on windows
provides a clear error message if glEnabled is called.
currently I just omit enabling mode #if defined(OSG_GLES2_AVAILABLE)
but maybe a better solution exists.
Regards
Sergey
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Re: [osg-users] Texture modes in OpenGL ES 2.0 in OSG
Hi Robert,
my previous 'solution' was y wrong, because there are other possible modes
being assosiated.
So better as no Texture modes are associated with textures in OpenGL ES 2.0
to ifndef code in
osg/Texture header file
instead of
virtual bool getModeUsage(StateAttribute::ModeUsage usage) const
{
usage.usesTextureMode(getTextureTarget());
return true;
}
to have
virtual bool getModeUsage(StateAttribute::ModeUsage usage) const
{
#ifndef OSG_GLES2_AVAILABLE
usage.usesTextureMode(getTextureTarget());
return true;
#else
return false;
#endif
}
Regards
Sergey
On Tue, Sep 9, 2014 at 3:27 PM, Sergey Kurdakov sergey.fo...@gmail.com
wrote:
Hi Alistair,
in that case was to just use setTextureAttribute
a correct solution,
So possibly a fix for those unaware of this subtle difference to just
have in setTextureAttributeAndModes for OpenGL ES 2.0 a similar code as for
setTextureAttribute
void StateSet::setTextureAttributeAndModes(unsigned int
unit,StateAttribute *attribute, StateAttribute::GLModeValue value)
{
if (attribute)
{
if (attribute-isTextureAttribute())
{
if (valueStateAttribute::INHERIT)
{
removeTextureAttribute(unit,attribute-getType());
}
else
{
setAttribute(getOrCreateTextureAttributeList(unit),attribute,value);
#ifndef OSG_GLES2_AVAILABLE
setAssociatedTextureModes(unit,attribute,value);
#endif
}
}
else
{
OSG_NOTICEWarning: non texture attribute
'attribute-className()' passed to
setTextureAttributeAndModes(unit,attr,value), std::endl;
OSG_NOTICE assuming
setAttributeAndModes(attr,value) instead.std::endl;
OSG_NOTICE please change calling code to use
appropriate call.std::endl;
setAttribute(attribute,value);
}
}
}
Regards
Sergey
On Tue, Sep 9, 2014 at 2:58 PM, Alistair Baxter alist...@mve.com wrote:
I found the solution in that case was to just use setTextureAttribute
rather than setTextureAttributeAndModes in OpenGL ES 2 builds.
However, since glEnable(GL_TEXTURE_2D) is a mistake in GLES2, it would be
better if osg didn’t ever try to do that for GLES2 contexts.
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[osg-users] Texture coordinates to OpenGL ES 2.0 shader
Hi All, there is a nice answer on how to use textures in shader here http://forum.openscenegraph.org/viewtopic.php?t=8273 ( see answer by Skylark (Jean-Sébastien Guay) ) now in OpenGL ES 2.0 there is no such feature as possibility to address gl_TexCoord[0].st there is a need to pass it in a separate step so in shader it is possible to access texture coordinate - say by such declaration: attribute vec2 a_TexCoordinate; thus setting setTexCoordArray won't automatically pass any data, and overall lack of texture coordinates seem to brake the overall osg way to pass everything to program. so the question is how to appoach the issue to pass texture coordinates to OpenGL ES 2.0 in unified way? Just a thought then: OpenSceneGraph has a nice feature like osg_ModelViewMatrix, ideally for platforms which lack gl_TexCoord support there could be similar build in attributes/uniforms, but I cannot find them. so if there is not unified way already ( maybe there is , just I'm not aware ) any pointers ( or what should be changed to add a glue to bring setTexCoordArray to shader attributs/uniforms ) are welcome. Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Texture coordinates to OpenGL ES 2.0 shader
Hi Robert, thanks, really there is osg_MultiTexCoordi somehow missed it Regards Sergey On Mon, Sep 8, 2014 at 7:07 PM, Robert Osfield robert.osfi...@gmail.com wrote: HI Sergey, osg::State has support for aliasing the gl_Vertex, gl_Color etc. attributes to osg_Vertex, osg_Color etc just in the same way as gl_ModelViewMatrix is mapped to osg_ModelViewMatrix etc. You just need to enable it via osg::State::setUseVertexAttributeAliasing(true); i.e. graphicscontext-getState()-osg::State::setUseVertexAttributeAliasing(true); Robert. On 8 September 2014 14:49, Sergey Kurdakov sergey.fo...@gmail.com wrote: Hi All, there is a nice answer on how to use textures in shader here http://forum.openscenegraph.org/viewtopic.php?t=8273 ( see answer by Skylark (Jean-Sébastien Guay) ) now in OpenGL ES 2.0 there is no such feature as possibility to address gl_TexCoord[0].st there is a need to pass it in a separate step so in shader it is possible to access texture coordinate - say by such declaration: attribute vec2 a_TexCoordinate; thus setting setTexCoordArray won't automatically pass any data, and overall lack of texture coordinates seem to brake the overall osg way to pass everything to program. so the question is how to appoach the issue to pass texture coordinates to OpenGL ES 2.0 in unified way? Just a thought then: OpenSceneGraph has a nice feature like osg_ModelViewMatrix, ideally for platforms which lack gl_TexCoord support there could be similar build in attributes/uniforms, but I cannot find them. so if there is not unified way already ( maybe there is , just I'm not aware ) any pointers ( or what should be changed to add a glue to bring setTexCoordArray to shader attributs/uniforms ) are welcome. Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Proper way to display a HUD
Hi Chris,
I suppose I could use something other than an OSG::Image to bind to the
BYTE property of my struct.
whatever you bind, the way you copy rendered results to layered window (
see your
memcpy which is exactly copying via system memory ) will move video
memory to system memory and this is a bottleneck
the suggestion was to avoid this step and perform whatever you want in
video memory ( even if a copy will occur- the copy between video memory is
much faster than a copy to system memory.
You might remember, I already sent you three approaches to avoid working
via system memory ( maybe others will find this tip useful too in case of
such an attempt ).
1) use windows DWM trick as in http://www.youtube.com/watch?v=4qWKSYWIqdk
the code to look at how it is achived is here
https://github.com/sphair/ClanLib/tree/master/Examples/GUI/GUI_Layered
the idea is here is that you render using DWM system calls and then
compose layered windows without old layered windows api which you try to
use to achive result. Here layering is achieved by exploiting the fact
that in new windows ( since Vista ) all windows first are rendered to
offscreen surface, but then are composed to produce final screen result -
you will be limited here to any windows operation system above windows xp (
but it is already retired and Vista is also not widely used - so limiting
yourself just to Win7+ will make all coding much easier ). BTW on linux the
same result possibly could be achieved via wayland compositor.
You might compile ClanLib and see how that achieved - it is fairly easy and
takes just few lines of code during creation of window and the complete
code to achive what you need is provided, so you will need just add the
same code to osg window creation function ( and use appropriate flags
elsewhere to use DWM hack, but still, as in this example it is fairly easy
to achive ).
2) use http://msdn.microsoft.com/en-us/magazine/ee819134.aspx approach and
then https://sites.google.com/site/snippetsanddriblits/OpenglDxInterop to
copy opengl rendered result to Direct2D layered window in video memory (
currently NV_DX_interop
http://www.opengl.org/registry/specs/NV/DX_interop2.txt and NV_DX_interop2
http://www.opengl.org/registry/specs/NV/DX_interop2.txt are supported on
almost all video cards ), that might not work, due to possible problems
with very difficult path via Direct3D/Direct2D texture, but still it is
possible that it will work and will give you better results than now
3) you might use rendering with OpenGL ES with osg ( though you would need
to have your own model loader ) via ANGLE to use
http://msdn.microsoft.com/en-us/magazine/ee819134.aspx trick, as final
rendered result in ANGLE might be a direct3d texture, which you could apply
to Direct2D layered window.
all approaches are not easy to implement to novice, but still - in case you
want to significantly improve fps - you should avoid working via system
memory, maybe someone else can offer some other insights - but I think that
there are hardly any more, so you still will have to implement one of
suggested approaches. And looks like the first suggested approach is most
simple one and also can be possibly ported to linux, at least ClanLib team
tries to have that example to run on linux too ,to significantly improve
fps for the task you wish to solve.
Regards
Sergey
On Mon, Sep 1, 2014 at 7:27 PM, Chris Hidden ch...@erghis.com wrote:
Hey Robert
Thanks for the more detailed explanation. From what I can make out you
are able to render the 3 models to a pbuffer than render this with
transparency over the desktop OK, this part if functioning as intended. Is
this correct?
Yes this is correct!
As for the HUD Ill try getting it working in a standard OSG graphics
context first as you said. Probably the best idea.
As far as your suggestions for optimization. I think I understand.
However I was under the impression that the osg::Image was the pbuffer.
In order to to my transparent screen trick I have a struct:
Code:
typedef struct
{
int width;
int height;
int pitch;
HDC hdc;
HBITMAP hBitmap;
BITMAPINFO info;
BYTE*pPixels;
} Scene;
Then I initiate the struct with some init values. Then the I do a memcpy
from the pbuffer/image to the struct:
Code:
for (int i = 0; i g_image-t(); ++i)
{
memcpy(g_scene.pPixels[g_scene.pitch * i],
g_image-data()[((sHeight - 1) - i) * (sWidth *
4)],
sWidth * 4);
}
Here g_image is my osg::image and g_scene is my struct. Once I have
copied the data I redraw to my layered window . This method takes care
of applying the necessary actions using BLENDFUNCTION and
UpdateLayeredWindow.
Code:
void RedrawLayeredWindow()
{
//
Re: [osg-users] Transparent Window Application
Hi Chris,
I think that
the use of FBO in place of pbuffer,
and use of async read pixels see my message
https://www.mail-archive.com/osg-users@lists.openscenegraph.org/msg50831.html
could improve speed a bit in your case.
Regards
Sergey
On Fri, Aug 22, 2014 at 11:55 AM, Chris Hidden ch...@erghis.com wrote:
Ok, with your pushes in the right direction I have finally managed to get
this working! :D. Its not very performance friendly but that I can
optimize later.
Ill break it down so that people who are looking to do somethings similar
can see what I did and suggest betters ways of doing it if they want :D.
The first step is to take a look at dhpowares code. His open GL layered
window example is the basis for a lot of what I did.
http://www.dhpoware.com/demos/glLayeredWindows.html
Dhpoware defines a bunch of constants to help set up the OpenGL and OpenGL
Extensions in his code. A lot of these we don't need however as OSG takes
care of a lot of this for us. We also don't need the methods:
Code:
InitChekerPatternTexture();
InitGLExtensions();
InitPBuffer();
InitGL();
These methods do things that OSG takes care of for us. We can also remove
the Struct called Vertex and the Vertex object g_cube as we are using our
own models.
I changed the Image struct to Scene instead of image just to make things
easier for myself. The struct itself remains the same:
Code:
typedef struct
{
int width;
int height;
int pitch;
HDC hdc;
HBITMAP hBitmap;
BITMAPINFO info;
BYTE*pPixels;
} Scene;
I also added a few global variables to make things easier while I was
trying to figure this out:
Code:
/**
* Handle to the current Instance
*/
HINSTANCE g_hInst;
/**
* Screen Horizontal x
*/
int sLeft;
/**
* Screen Vertical y
*/
int sTop;
/**
* Width of the screen
*/
int sWidth;
/**
* Height of the screen
*/
int sHeight;
/**
* Viewer for the OSG engine
*/
osg::ref_ptrosgViewer::Viewer g_viewer;
/**
* Image for the off screen pbuffer for the osg Scene
*/
osg::ref_ptrosg::Imageg_image;
/**
* OSG camera object for our scene
*/
osg::ref_ptrosg::Camera g_camera;
With WinMain we establish the layered window as shown in the example
except I use sTop, sLeft, sWidth and sHeight to set the createWindow
x,y,width and height attriubutes:
Code:
g_hWnd = CreateWindowEx(
WS_EX_LAYERED | WS_EX_TOPMOST, // 32 bit value declaring
the extended window style
wcl.lpszClassName, // Null
terminated string. Class name.
_T(GL Layered Window Demo), // Null terminated
string. Window Name.
WS_POPUP, //
32 but value declaring the style of the window.
sLeft, //
int x pos of window
sTop, //
int y pos of window.
sWidth, //
int width of window
sHeight,//
int height of window.
0,
// HWND handle to parent window, 0 if none.
0,
// HMENU handle to menu
wcl.hInstance, //
HINSTANCE handle to the instance of the module.
0);
Then I built a small method to set the full screen:
Code:
void SetToFullScreen()
{
RECT desktop;
const HWND hDesk = GetDesktopWindow();
GetWindowRect(hDesk, desktop);
sLeft = desktop.left;
sTop= desktop.top;
sWidth = desktop.right - sLeft;
sHeight = desktop.bottom- sTop;
}
Now that the window is full screen and the layered window is established
we need to set up the WindowProc method to handle messages:
Code:
LRESULT CALLBACK WindowProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM
lParam)
{
static TCHAR szBuffer[32] = { 0 };
switch (msg)
{
case WM_CREATE:
initOSG(hWnd);
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
case WM_KEYDOWN:
if (wParam == VK_ESCAPE)
{
SendMessage(hWnd, WM_CLOSE, 0, 0);
return 0;
}
break;
default:
break;
}
return DefWindowProc(hWnd, msg, wParam, lParam);
}
This looks a bit different as I didn't need the timer functionality
Re: [osg-users] Transparent Window Application
Hi Chris,
for read pixels there are examples
http://trac.openscenegraph.org/projects/osg//browser/OpenSceneGraph/trunk/examples/osgscreencapture/osgscreencapture.cpp
https://code.google.com/p/osgworks/source/browse/trunk/src/osgwTools/ScreenCapture.cpp
Regards
Sergey
On Thu, Aug 21, 2014 at 12:27 PM, Chris Hidden ch...@erghis.com wrote:
Yes! Ok, I read that forum and it gave me a better idea of how I might do
this. To account for transparency though I need to get the current
pbuffer and put it into a local byte array.
Something like
Code:
static BYTE pixels[width * height * 4] = {0};
unsigned char* ptr = g_image-data();
for (unsigned int i = 0; i size; i += 2)
{
pixels[i] = (ptr[i / 2] 4);
pixels[i + 1] = (ptr[i / 2] 0x0F);
}
Now this doens't really work of course, I just get an empy BYTE array.
Normally this could be done with :
Code:
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glReadPixels(0, 0, IMAGE_WIDTH, IMAGE_HEIGHT, GL_BGRA_EXT,
GL_UNSIGNED_BYTE, pixels);
I know that OSG has a readPixels method. But I don't really understand
how to read the pixels into a byte array. The optional packing parameter
is an int in the osg::image::readpixels. I just lack understanding of how
to make this conversion.
How would I got about doing this? Is there maybe a better way in this
case than readpixels?
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=60728#60728
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Re: [osg-users] Transparent Window Application
Hi Chris,
I did not followed your code, sorry, but reading the question I realized
that what you need is a silent renderer
see discussion here http://forum.openscenegraph.org/viewtopic.php?t=7202
just read all the discussion on three forum pages.
then taking rendered images - you can put them into layered windows.
Regards
Sergey
On Tue, Aug 19, 2014 at 8:50 PM, Chris Hidden ch...@erghis.com wrote:
Anyone have any ideas?
This is what Im working on so far. I have used the exmaple linked in the
above post.
I create a layered window:
Code:
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nShowCmd)
{
DetectMemoryLeaks();
MSG msg = { 0 };
WNDCLASSEX wcl = { 0 };
wcl.cbSize = sizeof(wcl);
wcl.style = CS_HREDRAW | CS_VREDRAW;
wcl.lpfnWndProc = WindowProc;
wcl.cbClsExtra = 0;
wcl.cbWndExtra = 0;
wcl.hInstance = hInstance;
wcl.hIcon = LoadIcon(0, IDI_APPLICATION);
wcl.hCursor = LoadCursor(0, IDC_ARROW);
wcl.hbrBackground = 0;
wcl.lpszMenuName = 0;
wcl.lpszClassName = _T(GLLayeredWindowClass);
wcl.hIconSm = 0;
if (!RegisterClassEx(wcl))
return 0;
g_hWnd = CreateWindowEx(WS_EX_LAYERED | WS_EX_TOPMOST,
wcl.lpszClassName,
_T(GL Layered Window Demo), WS_POPUP, 0, 0, IMAGE_WIDTH,
IMAGE_HEIGHT, 0, 0, wcl.hInstance, 0);
if (g_hWnd)
{
if (Init())
{
ShowWindow(g_hWnd, nShowCmd);
UpdateWindow(g_hWnd);
while (true)
{
if (PeekMessage(msg, 0, 0, 0, PM_REMOVE))
{
if (msg.message == WM_QUIT)
break;
TranslateMessage(msg);
DispatchMessage(msg);
}
else
{
DrawFrame();
}
}
}
Cleanup();
UnregisterClass(wcl.lpszClassName, hInstance);
}
return (int)(msg.wParam);
}
Then I establish the osg reference object for my scene in the WindProc:
Code:
LRESULT CALLBACK WindowProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM
lParam)
{
static TCHAR szBuffer[32] = { 0 };
switch (msg)
{
case WM_CREATE:
{
osg::ref_ptrosg::Referenced windata =
new
osgViewer::GraphicsWindowWin32::WindowData(hWnd);
osg::ref_ptrosg::GraphicsContext::Traits traits =
new osg::GraphicsContext::Traits;
traits-x = 0;
traits-y = 0;
traits-width = 800;
traits-height = 600;
traits-windowDecoration = false;
traits-doubleBuffer = true;
traits-pbuffer = true;
traits-inheritedWindowData = windata;
osg::ref_ptrosg::GraphicsContext gc =
osg::GraphicsContext::createGraphicsContext(traits.get()
);
osg::ref_ptrosg::Camera camera = new osg::Camera;
camera-setGraphicsContext(gc);
camera-setViewport(
new osg::Viewport(0, 0, traits-width,
traits-height));
camera-setClearMask(GL_DEPTH_BUFFER_BIT |
GL_COLOR_BUFFER_BIT);
camera-setClearColor(osg::Vec4f(0.0f, 0.0f, 0.0f, 0.0f));
camera-setProjectionMatrixAsPerspective(
30.0f, (double)traits-width / (double)traits
-height, 1.0, 1000.0);
g_viewer = new osgViewer::Viewer;
g_viewer-setCamera(camera.get());
g_viewer-setSceneData(osgDB::readNodeFile(cessna.osg));
g_viewer-setKeyEventSetsDone(0);
g_viewer-setCameraManipulator(
new osgGA::TrackballManipulator);
return 0;
}
case WM_DESTROY:
PostQuitMessage(0);
return 0;
case WM_KEYDOWN:
if (wParam == VK_ESCAPE)
{
SendMessage(hWnd, WM_CLOSE, 0, 0);
return 0;
}
break;
case WM_NCHITTEST:
return HTCAPTION; // allows dragging of the window
case WM_TIMER:
_stprintf(szBuffer, _TEXT(%d FPS), g_frames);
SetWindowText(hWnd,
Re: [osg-users] Mouse World Position in Perspective View
Hi Sonya, I think you could solve your problem if you understand theory what goes during the whole process and test if anything works from simplest examples, then after tests you'll uncover a problem for theory I think following to links are useful, but see not only first link, but also second http://www.mvps.org/directx/articles/rayproj.htm http://www.mvps.org/directx/articles/improved_ray_picking.htm Regards Sergey On Sat, Jul 26, 2014 at 1:53 AM, Sonya Blade sonyablade2...@hotmail.com wrote: Dear All, I'm having a hard time getting the correct results for the mouse position in world coordinates. The problem is: retrived world mouse position is not even close to those when I hoover over an object so I couldn't find any correlation between to which vertex of object is mouse close to. To obtain the world mouse position I use world_mouse = screen_mouse*inverse(MVPW), for obtaining the vertex position I use LineSegmentIntersector getWorldIntersectionPoint() and there is absolutey not any coherent value that I can find any relation. My aim was to snap the mouse to the closest vertex in object, but produced results are as follow. world coords vertex(6.97538 20.55 18.7482 local coords vertex(0.876922 -3.74963 4 Mouse Position -101.794 44.6545 -130.128 Your help will be appreciated, ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Mouse World Position in Perspective View
Hi Sonya but what happens if mouse is close enough and supposed to be snapped to vertex but mouse is not on object.? I can think of two things - set bounding sphere to be larger so that you intersect object when you click near object ( see http://vtp.googlecode.com/svn-history/r7601/trunk/TerrainSDK/vtlib/vtosg/NodeOSG.cpp as an example), then create custom intersector to suite your needs see custom intersectors here http://www.packtpub.com/sites/default/files/downloads/6884_Chapter10.pdf Regards Sergey On Sat, Jul 26, 2014 at 11:11 PM, Sonya Blade sonyablade2...@hotmail.com wrote: Hi Sergey, Thanks for the tutorial, but I believe that the problem is: Casted ray with world_mouse = screen_mouse*inverse(MVPW) matrix manipulation is unware of whether it crossed an object or not, it simply returns near/far points of frustum. On the other hand using, the LineSegmentIntersector getWorldIntersectionPoint() and example in *OSG cookbook* *Ch3 Selecting a point on the model** solves* the issue of what is behind the mouse but I believe that it has drawbacks. Because this tecnique requires the mouse to be hoovered on object, but what happens if mouse is close enough and supposed to be snapped to vertex but mouse is not on object.? The above is my intuitive reasoning , I tried to put it in succinct manner and hope that I well versed it. If it is not clear I'll try to ealaborate it with images. Regards, -- Date: Sat, 26 Jul 2014 14:11:38 +0400 From: sergey.fo...@gmail.com To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] Mouse World Position in Perspective View Hi Sonya, I think you could solve your problem if you understand theory what goes during the whole process and test if anything works from simplest examples, then after tests you'll uncover a problem for theory I think following to links are useful, but see not only first link, but also second http://www.mvps.org/directx/articles/rayproj.htm http://www.mvps.org/directx/articles/improved_ray_picking.htm Regards Sergey On Sat, Jul 26, 2014 at 1:53 AM, Sonya Blade sonyablade2...@hotmail.com wrote: Dear All, I'm having a hard time getting the correct results for the mouse position in world coordinates. The problem is: retrived world mouse position is not even close to those when I hoover over an object so I couldn't find any correlation between to which vertex of object is mouse close to. To obtain the world mouse position I use world_mouse = screen_mouse*inverse(MVPW), for obtaining the vertex position I use LineSegmentIntersector getWorldIntersectionPoint() and there is absolutey not any coherent value that I can find any relation. My aim was to snap the mouse to the closest vertex in object, but produced results are as follow. world coords vertex(6.97538 20.55 18.7482 local coords vertex(0.876922 -3.74963 4 Mouse Position -101.794 44.6545 -130.128 Your help will be appreciated, ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Convert depth image to 3D model
Hi Mikhail, while it might be overkill ( depends on details I cannot figure from your description ) you might want to try Point Cloud Library, see also http://nccastaff.bournemouth.ac.uk/jmacey/MastersProjects/MSc13/14/Thesis/SurfaceReconstructionThesis.pdf Regards Sergey On Thu, Jul 24, 2014 at 2:26 PM, Jordi Torres jtorresfa...@gmail.com wrote: Hi Mikhail, In my opinion the easiest way is to use a displacement mapping shader. In the vertex shader you use the texture values to alter vertex positions. I think there is an example in the OSG Cookbook from Wang Rui. Hope it helps. 2014-07-24 12:21 GMT+02:00 Mikhail Matrosov mikhail.matro...@gmail.com: Hello, I have a depth image, i.e. grayscale floating point image, where each pixel represents a depth value in this point of a scene. What is the easiest way to create a 3D model of the scene? I know I can simply loop over all pixels and create a pair of triangles for each pixel. But I feel like it has to be more elegant solution. Cheers, Mikhail -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=60427#60427 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Jordi Torres ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Merge several images
Hi Taras, just have several uniform sampler2D or sampler2DRect in shader and bind textures to them see example here http://trac.openscenegraph.org/projects/osg//browser/OpenSceneGraph/trunk/examples/osgmultiplerendertargets/osgmultiplerendertargets.cpp take notice how uniform sampler2DRect textureID0; uniform sampler2DRect textureID1; uniform sampler2DRect textureID2; uniform sampler2DRect textureID3; uniforms are used Regards Sergey On Thu, Jul 10, 2014 at 4:19 PM, Taras Nagorny kalashni...@inbox.ru wrote: Hi, I need to merge the two (or more) images. I have a vector of objects of type osg::Image. As a result, we obtain a single object (same type) combines all the necessary objects from the vector. Please help. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=60236#60236 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Where does RenderInfo come from which is passed to all Drawable::draw?
Hi Michael. But I may return to the issue later in 1 or 2 years when I expect to have a good understanding of both. maybe someone will find this thread and will pick the task. but overall what I've seen does not look too difficult ( I'd like to start to experiment with it as native integration of CEGUI for osg will be very beneficial, but think that won't have spare time anytime soon ). Regards Sergey On Sat, Jul 5, 2014 at 1:00 PM, michael kapelko korn...@gmail.com wrote: I estimated it would take me about 2 months since I'm not good enough at OSG and CEGUI internals. But I may return to the issue later in 1 or 2 years when I expect to have a good understanding of both. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Where does RenderInfo come from which is passed to all Drawable::draw?
Hi Michael, though I did not dig into code ( just spotted that there is native render for ogre ), but seems an approach like http://static.cegui.org.uk/docs/0.8.3/classCEGUI_1_1OgreRenderer.html can be of some use. That is - instead to render by CEGUI - render all things by osg itself ( see in CEGUI code cegui-0.8.3\cegui\src\RendererModules - and ogre renderer is there ). there is need for the render class for osg though. but then - this will be really good integration with all capabilities of osg in place. Regards Sergey On Fri, Jul 4, 2014 at 5:07 PM, michael kapelko korn...@gmail.com wrote: Hi. I'm working on integrating CEGUI into OSG and I have successfully followed Wang Rui's example from his Cookbook: https://github.com/xarray/osgRecipes/tree/master/cookbook/chapter9/ch09_04 But there's an ugly part with CEGUI initialization: it happens in CEGUIDrawable::drawImplementation(RenderInfo ). It initializes paths, uses a lot of mutables, strips constness. I want to get rid of that ugly stuff and initialize CEGUI somewhere outside drawImplementation() call. So when and where can I get RenderInfo that is passed to all Drawable::draw(RenderInfo )? Thanks. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Where does RenderInfo come from which is passed to all Drawable::draw?
Hi Michael, Do you mean a module located in CEGUI or OSG? module in CEGUI and calls there are made to osg My thought is this: osg is somewhat similar to ogre in many respects. So it is possible to take ogre renderer and to try to replace calls to ogre with similar calls to osg ( mostly the replacement is obvious, but some parts are not ... here is a difficulty, but again I did not spend much time on the code of that CEGUI module just browsed it ). possibly it is few days effort . Regards Sergey On Fri, Jul 4, 2014 at 6:41 PM, michael kapelko korn...@gmail.com wrote: I was thinking about OSG renderer module for CEGUI, but I'm not sure how to do it atm. Can you please elaborate (as much as possible) what you mean by here is need for the render class for osg though. Do you mean a module located in CEGUI or OSG? If the latter, what do I need to take into account? Thanks. 2014-07-04 21:16 GMT+07:00 Sergey Kurdakov sergey.fo...@gmail.com: Hi Michael, though I did not dig into code ( just spotted that there is native render for ogre ), but seems an approach like http://static.cegui.org.uk/docs/0.8.3/classCEGUI_1_1OgreRenderer.html can be of some use. That is - instead to render by CEGUI - render all things by osg itself ( see in CEGUI code cegui-0.8.3\cegui\src\RendererModules - and ogre renderer is there ). there is need for the render class for osg though. but then - this will be really good integration with all capabilities of osg in place. Regards Sergey On Fri, Jul 4, 2014 at 5:07 PM, michael kapelko korn...@gmail.com wrote: Hi. I'm working on integrating CEGUI into OSG and I have successfully followed Wang Rui's example from his Cookbook: https://github.com/xarray/osgRecipes/tree/master/cookbook/chapter9/ch09_04 But there's an ugly part with CEGUI initialization: it happens in CEGUIDrawable::drawImplementation(RenderInfo ). It initializes paths, uses a lot of mutables, strips constness. I want to get rid of that ugly stuff and initialize CEGUI somewhere outside drawImplementation() call. So when and where can I get RenderInfo that is passed to all Drawable::draw(RenderInfo )? Thanks. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Rubber window for multiple selection
Hi Sonya, if I'm not mistaken Enviro in vtp ( osg based app ) has rubber band implemented https://code.google.com/p/vtp/ Regards Sergey On Wed, Jul 2, 2014 at 10:19 AM, Sonya Blade sonyablade2...@hotmail.com wrote: Dear All, Mainly I have 2 questions, both are to achieve the comprehensive selection task in OSG. #1 - How to draw a rectangle, polygonal, circle, lasso etc.. selection rubber? #2 - How to configure OSG to implement that selection defined at the first step? For selection part OSG Beginners book suggest to use osgUtil::PolytopeIntersector for regional selection, but doesn't give any clue on how to draw the rubber or is it comes as an intrinsic feature of sgUtil::PolytopeIntersector when you create it with WINDOW parameter set on. I also studied the osgkeyboardmouse.cpp example, but I couldn't find any visible difference when I switch from LineSegmentInteresect to PolytopeIntersector, while I was expecting to see the HUD window rubber to be drawn and objects falling into that rectangle to be selected. Your guidance will be appreciated! Regards, ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Rubber window for multiple selection
Hi Sonya, it is in Enviro.cpp there, see function - void Enviro::SetWindowBox(const IPoint2 p1, const IPoint2 p2) and also look at track of mouse movements see for MM_SELECTBOX in that file. basically the approach is to render quad ( with border or without ), keep track of mouse and resize this quad accordingly rubber band is based on common approach ( you might look for C++ rubber bands in google ), and only osg one is to appropriately render selection quad, other tricks are non osg related. Regards Sergey On Wed, Jul 2, 2014 at 1:32 PM, Sonya Blade sonyablade2...@hotmail.com wrote: Hi Sergey, It really is very hard to locate the code portion where it implements the rubber drawing, I'm paving my way with osgHUD example to create the rubber banding. Your comments will be appreciated, Regards, -- Date: Wed, 2 Jul 2014 11:03:47 +0400 From: sergey.fo...@gmail.com To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] Rubber window for multiple selection Hi Sonya, if I'm not mistaken Enviro in vtp ( osg based app ) has rubber band implemented https://code.google.com/p/vtp/ Regards Sergey On Wed, Jul 2, 2014 at 10:19 AM, Sonya Blade sonyablade2...@hotmail.com wrote: Dear All, Mainly I have 2 questions, both are to achieve the comprehensive selection task in OSG. #1 - How to draw a rectangle, polygonal, circle, lasso etc.. selection rubber? #2 - How to configure OSG to implement that selection defined at the first step? For selection part OSG Beginners book suggest to use osgUtil::PolytopeIntersector for regional selection, but doesn't give any clue on how to draw the rubber or is it comes as an intrinsic feature of sgUtil::PolytopeIntersector when you create it with WINDOW parameter set on. I also studied the osgkeyboardmouse.cpp example, but I couldn't find any visible difference when I switch from LineSegmentInteresect to PolytopeIntersector, while I was expecting to see the HUD window rubber to be drawn and objects falling into that rectangle to be selected. Your guidance will be appreciated! Regards, ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Hi all, The OpenSceneGraph3.3.2 DEV Running in D3D9 mode's full sourcecode version is uploaded and can be downloaded, Happy a good weekend!
Hi LearningOSG, GLSL shaders could be converted to HLSL 'on the fly' via ANGLE project, cannot say if you'd take this task, but should be, in principle, very similar to what was already done: just a modified ANGLE source should be used to be combined with what was already done. Fortunately licenses of all involved projects do allow such a thing. Regards Sergey On Sat, Jun 28, 2014 at 3:49 AM, LearningOSG LearningOSG learning...@gmail.com wrote: Hi Nick, This is only the very simple methods to provide the full(90%) convert,if not use GLSL shader parts,if you also want use GLSL shades,I know a new tool can convert GLSL to HLSL,Have some suggestions: 1.If you want to use this in OSG MT static Mode,minor osg lines changes is need. 2.If you want to write directx codes in osg,you need to use OSG MT Mode. 3.Currently please use only .ive files only ,this can ensure run successful,otherwise,such as .osg,.osgt files have problems,in theory the .osg and .ive file is equal,i haven't times in this aspect to dig the reason. thank all of you kindly. cheers Learned osg five months 2014-06-28 5:37 GMT+08:00 Trajce Nikolov NICK trajce.nikolov.n...@gmail.com: I tried it at my end as well. Well, I think Mr. Zhu (?) deserve credit for being the first one that publicly tried this after the big and somewhat weird marketing. It is just linking osg against gldirect library and you can run osg now on XBox :-) (Robert? :-)). I read all the nice defensive thoughts from the community about language barriers, cultural differences etc.(which afterall made me feel bad since I commented in not so friendly fashion), still thinking that Mr. Zhu (?) could have been nice to the community as well by not making such a big noise and describing it in just a line of nice email and to not make the curious from the community to download 1.1GB of compiled all of OSG where just a link (or built) gldirect would be enough Nick Nick On Fri, Jun 27, 2014 at 9:25 PM, Thomas Hogarth thomas.hoga...@gmail.com wrote: I've deleted the binaries and am uploading the binaries. It's just osg built with all the example etc again that mesa lib. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=60007#60007 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- trajce nikolov nick ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Hi all, The OpenSceneGraph3.3.2 DEV Running in D3D9 mode's full sourcecode version is uploaded and can be downloaded, Happy a good weekend!
Hi LearningOSG, This is a very very minor works yes, but you won't stop moving further? it would be sad if all endeavors just stopped at the first step. as for and many of them have no time to learn osg,they needed the final results,the finished simulator that they can used directly. and for that normal customers hire software developers and if these customers are instead themselves software developers, then like you they are capable to make something valuable in relatively short time frames, so what is your exact point - to promote OSG to customers or to developers? These are two different tasks. even not know what is OSG so if your task is to promote OSG to those who do not know graphics programming at all to hire graphics programmers - that is fine, and demos are really what is needed, but showing that directx 9 can be supported is not really good selling point to even naive customer. Because windows xp is already discontinued, and almost all win 7 capable computers have opengl compatible cards with respective drivers and very well served by osg as it is. currently - what could be a hot sell - is a support for DX 11 features ( to have osg based projects in windows METRO apps and to run on current XBOX ) and it is already can be done via ANGLE project which currently supports almost all OpenGL ES 3.0 features, and while OpenGL ES 3.0 is a little limited compared to OpenGL 4.x , if the game or software is heavily shader based - differences are minimal. and with your 'fixed part' being done - even fixed pipeline could be supported ( if it is used in a project ). So, it is not like - that some new feature could be a selling point. Rather - the existing demand should be met with specific features. but you will see that by yourself - that over time just you new feature - dx9 support won't attract much attention. Regards Sergey On Sat, Jun 28, 2014 at 4:20 AM, LearningOSG LearningOSG learning...@gmail.com wrote: Hi Sergey, This is a very very minor works in osg,please not mind,and thanks to use LearningOSG,this is what i am doing,and like this name,OSG is a excellent lower simulation layer,just like Linux. But for world customers,they even not know what is OSG,and many of them have no time to learn osg,they needed the final results,the finished simulator that they can used directly. cheers Learned osg five months ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Hi all, The OpenSceneGraph3.3.2 DEV Running in D3D9 mode's full sourcecode version is uploaded and can be downloaded, Happy a good weekend!
Hi LearningOSG, OSG to D3D9's convert is very simple,and i also conside this is nothing,so never mind. ok, but you tried to sell it as a major feature and almost succeed, until others got a look. To novice that might seem like a good approach to communicate in professional community - but it is not. It just feels not right for almost anyone here. so you are welcome to add things, just to create too much noise for any new minor features distracts from discussing those other points, which professionally interest people, neither it helps to any customer, which are irrelevant here - as it is not a customer market place. Regards Sergey On Sat, Jun 28, 2014 at 5:52 AM, LearningOSG LearningOSG learning...@gmail.com wrote: Hi Sergey, Agreed all of your points,but you seems ignored the most important one point,all of the customers they only want the immediately results,and the result quality is required highly,rarely of them hope to have dangers to engage a thing too far to realize and not know the final results. Say sorry first,because i wantn't to ment a osg software before,his name is delta3d,they first get the american army's amounts money help to develop the thing which army needed,and many years pasted,now you can see the results. OSG to D3D9's convert is very simple,and i also conside this is nothing,so never mind. cheers Learned osg five months 2014-06-28 9:07 GMT+08:00 Sergey Kurdakov sergey.fo...@gmail.com: Hi LearningOSG, This is a very very minor works yes, but you won't stop moving further? it would be sad if all endeavors just stopped at the first step. as for and many of them have no time to learn osg,they needed the final results,the finished simulator that they can used directly. and for that normal customers hire software developers and if these customers are instead themselves software developers, then like you they are capable to make something valuable in relatively short time frames, so what is your exact point - to promote OSG to customers or to developers? These are two different tasks. even not know what is OSG so if your task is to promote OSG to those who do not know graphics programming at all to hire graphics programmers - that is fine, and demos are really what is needed, but showing that directx 9 can be supported is not really good selling point to even naive customer. Because windows xp is already discontinued, and almost all win 7 capable computers have opengl compatible cards with respective drivers and very well served by osg as it is. currently - what could be a hot sell - is a support for DX 11 features ( to have osg based projects in windows METRO apps and to run on current XBOX ) and it is already can be done via ANGLE project which currently supports almost all OpenGL ES 3.0 features, and while OpenGL ES 3.0 is a little limited compared to OpenGL 4.x , if the game or software is heavily shader based - differences are minimal. and with your 'fixed part' being done - even fixed pipeline could be supported ( if it is used in a project ). So, it is not like - that some new feature could be a selling point. Rather - the existing demand should be met with specific features. but you will see that by yourself - that over time just you new feature - dx9 support won't attract much attention. Regards Sergey On Sat, Jun 28, 2014 at 4:20 AM, LearningOSG LearningOSG learning...@gmail.com wrote: Hi Sergey, This is a very very minor works in osg,please not mind,and thanks to use LearningOSG,this is what i am doing,and like this name,OSG is a excellent lower simulation layer,just like Linux. But for world customers,they even not know what is OSG,and many of them have no time to learn osg,they needed the final results,the finished simulator that they can used directly. cheers Learned osg five months ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Hi all, The OpenSceneGraph3.3.2 DEV Running in D3D9 mode's full sourcecode version is uploaded and can be downloaded, Happy a good weekend!
Hi LearningOSG,among other feature which were mentioned was lua scripting - this is exact feature which is now developed by Robert ( in the past it was possible to script osg from other languages though, such as C# ). btw I do not blame you, just try to convey to you, that how you behave looks weird to the members of the list and even to Chris ( you may ask him ), so that if you get a message ( not offense - it is not intended) you may try to change somewhat how you announce things and not be banned some day due to how others see your actions. Regards Sergey On Sat, Jun 28, 2014 at 6:17 AM, LearningOSG LearningOSG learning...@gmail.com wrote: Hi Sergey, First i never wantn't to emphasize osg to d3d9 features,this is only a feature mented in the coming OSGWARES 1.0 Beta,you can look at the osg mailing lists again,one day a people named Chris Hanson in this list,say he is in 51 areas about this feature,then have following Robert's justice and discusses,I am only a osg leaner,and not selling softwares,until currently. cheers Learned osg five months 2014-06-28 9:52 GMT+08:00 LearningOSG LearningOSG learning...@gmail.com: Hi Sergey, Agreed all of your points,but you seems ignored the most important one point,all of the customers they only want the immediately results,and the result quality is required highly,rarely of them hope to have dangers to engage a thing too far to realize and not know the final results. Say sorry first,because i wantn't to ment a osg software before,his name is delta3d,they first get the american army's amounts money help to develop the thing which army needed,and many years pasted,now you can see the results. OSG to D3D9's convert is very simple,and i also conside this is nothing,so never mind. cheers Learned osg five months 2014-06-28 9:07 GMT+08:00 Sergey Kurdakov sergey.fo...@gmail.com: Hi LearningOSG, This is a very very minor works yes, but you won't stop moving further? it would be sad if all endeavors just stopped at the first step. as for and many of them have no time to learn osg,they needed the final results,the finished simulator that they can used directly. and for that normal customers hire software developers and if these customers are instead themselves software developers, then like you they are capable to make something valuable in relatively short time frames, so what is your exact point - to promote OSG to customers or to developers? These are two different tasks. even not know what is OSG so if your task is to promote OSG to those who do not know graphics programming at all to hire graphics programmers - that is fine, and demos are really what is needed, but showing that directx 9 can be supported is not really good selling point to even naive customer. Because windows xp is already discontinued, and almost all win 7 capable computers have opengl compatible cards with respective drivers and very well served by osg as it is. currently - what could be a hot sell - is a support for DX 11 features ( to have osg based projects in windows METRO apps and to run on current XBOX ) and it is already can be done via ANGLE project which currently supports almost all OpenGL ES 3.0 features, and while OpenGL ES 3.0 is a little limited compared to OpenGL 4.x , if the game or software is heavily shader based - differences are minimal. and with your 'fixed part' being done - even fixed pipeline could be supported ( if it is used in a project ). So, it is not like - that some new feature could be a selling point. Rather - the existing demand should be met with specific features. but you will see that by yourself - that over time just you new feature - dx9 support won't attract much attention. Regards Sergey On Sat, Jun 28, 2014 at 4:20 AM, LearningOSG LearningOSG learning...@gmail.com wrote: Hi Sergey, This is a very very minor works in osg,please not mind,and thanks to use LearningOSG,this is what i am doing,and like this name,OSG is a excellent lower simulation layer,just like Linux. But for world customers,they even not know what is OSG,and many of them have no time to learn osg,they needed the final results,the finished simulator that they can used directly. cheers Learned osg five months ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Hi all, The OpenSceneGraph3.3.2 DEV Running in D3D9 mode's full sourcecode version is uploaded and can be downloaded, Happy a good weekend!
Hi LearningOSG Sergey,Now a very ideal poeple or company hired you,and give you tons of moneys,and you get all of the offers and tell them please give me a team and many many years?just like delta3d??? this is exactly not a question to discuss on a list which is about technical developments of osg. there could be those who can find someone ready to finance big projects, much bigger than few people working on delta3d ( I seen few such start up companies personally ), but those who managed to convince - did not dig into much of tech details, so discussions of business and technical features are two separate things - and exactly no one discussed bussiness opportunities on the list ( except of occasional position offerings ) I think, that I'm so much talented like you - so I could only congratulate you and your progress with osg. But please - ask tech questions, post your achievements but do not try to touch how to convince someone to finance projects, it's off topic. Regards Sergey On Sat, Jun 28, 2014 at 6:44 AM, LearningOSG LearningOSG learning...@gmail.com wrote: Hi Sergey, Maybe make some disturb for the list members,the following things i want to emphasize: 1.The currently Lua interface and features which osg is developping haven't any relationships with OSGWARES 1.0 Beta. 2.In fact the big problems all the advanced osg develops faced is for Example: Sergey,Now a very ideal poeple or company hired you,and give you tons of moneys,and you get all of the offers and tell them please give me a team and many many years?just like delta3d??? Say sorry first for the disturbs,and i wantn't to discuss no more not related with technology. cheers Learned osg five months 2014-06-28 10:28 GMT+08:00 Sergey Kurdakov sergey.fo...@gmail.com: Hi LearningOSG,among other feature which were mentioned was lua scripting - this is exact feature which is now developed by Robert ( in the past it was possible to script osg from other languages though, such as C# ). btw I do not blame you, just try to convey to you, that how you behave looks weird to the members of the list and even to Chris ( you may ask him ), so that if you get a message ( not offense - it is not intended) you may try to change somewhat how you announce things and not be banned some day due to how others see your actions. Regards Sergey On Sat, Jun 28, 2014 at 6:17 AM, LearningOSG LearningOSG learning...@gmail.com wrote: Hi Sergey, First i never wantn't to emphasize osg to d3d9 features,this is only a feature mented in the coming OSGWARES 1.0 Beta,you can look at the osg mailing lists again,one day a people named Chris Hanson in this list,say he is in 51 areas about this feature,then have following Robert's justice and discusses,I am only a osg leaner,and not selling softwares,until currently. cheers Learned osg five months 2014-06-28 9:52 GMT+08:00 LearningOSG LearningOSG learning...@gmail.com : Hi Sergey, Agreed all of your points,but you seems ignored the most important one point,all of the customers they only want the immediately results,and the result quality is required highly,rarely of them hope to have dangers to engage a thing too far to realize and not know the final results. Say sorry first,because i wantn't to ment a osg software before,his name is delta3d,they first get the american army's amounts money help to develop the thing which army needed,and many years pasted,now you can see the results. OSG to D3D9's convert is very simple,and i also conside this is nothing,so never mind. cheers Learned osg five months 2014-06-28 9:07 GMT+08:00 Sergey Kurdakov sergey.fo...@gmail.com: Hi LearningOSG, This is a very very minor works yes, but you won't stop moving further? it would be sad if all endeavors just stopped at the first step. as for and many of them have no time to learn osg,they needed the final results,the finished simulator that they can used directly. and for that normal customers hire software developers and if these customers are instead themselves software developers, then like you they are capable to make something valuable in relatively short time frames, so what is your exact point - to promote OSG to customers or to developers? These are two different tasks. even not know what is OSG so if your task is to promote OSG to those who do not know graphics programming at all to hire graphics programmers - that is fine, and demos are really what is needed, but showing that directx 9 can be supported is not really good selling point to even naive customer. Because windows xp is already discontinued, and almost all win 7 capable computers have opengl compatible cards with respective drivers and very well served by osg as it is. currently - what could be a hot sell - is a support for DX 11 features ( to have osg based projects in windows METRO apps and to run on current XBOX
Re: [osg-users] Hi all, The OpenSceneGraph3.3.2 DEV Running in D3D9 mode's full sourcecode version is uploaded and can be downloaded, Happy a good weekend!
Hi Michael. Sergey, don't forget to append Re: when you reply strange, threading should not depend on Re: ( neither it depends in my web gmail browser ), rather it was always a good way to keep the same name for thread -according to old message lists etiquette ( it is just more difficult currently in online web gmail mail client due to that it hides automatic Re: ) so I think Re: issue is more about your settings. Regards Sergey On Sat, Jun 28, 2014 at 7:52 AM, michael kapelko korn...@gmail.com wrote: Sergey, don't forget to append Re: when you reply. Otherwise, GMail sees it as different threads. And that's even more annoying that what's happening already ;) 2014-06-28 10:11 GMT+07:00 LearningOSG LearningOSG learning...@gmail.com : yes,off topic,so we stop and not to continue this,let back to osg related topics. cheers Learned osg five months 2014-06-28 10:06 GMT+08:00 Sergey Kurdakov sergey.fo...@gmail.com: Hi LearningOSG, OSG to D3D9's convert is very simple,and i also conside this is nothing,so never mind. ok, but you tried to sell it as a major feature and almost succeed, until others got a look. To novice that might seem like a good approach to communicate in professional community - but it is not. It just feels not right for almost anyone here. so you are welcome to add things, just to create too much noise for any new minor features distracts from discussing those other points, which professionally interest people, neither it helps to any customer, which are irrelevant here - as it is not a customer market place. Regards Sergey On Sat, Jun 28, 2014 at 5:52 AM, LearningOSG LearningOSG learning...@gmail.com wrote: Hi Sergey, Agreed all of your points,but you seems ignored the most important one point,all of the customers they only want the immediately results,and the result quality is required highly,rarely of them hope to have dangers to engage a thing too far to realize and not know the final results. Say sorry first,because i wantn't to ment a osg software before,his name is delta3d,they first get the american army's amounts money help to develop the thing which army needed,and many years pasted,now you can see the results. OSG to D3D9's convert is very simple,and i also conside this is nothing,so never mind. cheers Learned osg five months 2014-06-28 9:07 GMT+08:00 Sergey Kurdakov sergey.fo...@gmail.com: Hi LearningOSG, This is a very very minor works yes, but you won't stop moving further? it would be sad if all endeavors just stopped at the first step. as for and many of them have no time to learn osg,they needed the final results,the finished simulator that they can used directly. and for that normal customers hire software developers and if these customers are instead themselves software developers, then like you they are capable to make something valuable in relatively short time frames, so what is your exact point - to promote OSG to customers or to developers? These are two different tasks. even not know what is OSG so if your task is to promote OSG to those who do not know graphics programming at all to hire graphics programmers - that is fine, and demos are really what is needed, but showing that directx 9 can be supported is not really good selling point to even naive customer. Because windows xp is already discontinued, and almost all win 7 capable computers have opengl compatible cards with respective drivers and very well served by osg as it is. currently - what could be a hot sell - is a support for DX 11 features ( to have osg based projects in windows METRO apps and to run on current XBOX ) and it is already can be done via ANGLE project which currently supports almost all OpenGL ES 3.0 features, and while OpenGL ES 3.0 is a little limited compared to OpenGL 4.x , if the game or software is heavily shader based - differences are minimal. and with your 'fixed part' being done - even fixed pipeline could be supported ( if it is used in a project ). So, it is not like - that some new feature could be a selling point. Rather - the existing demand should be met with specific features. but you will see that by yourself - that over time just you new feature - dx9 support won't attract much attention. Regards Sergey On Sat, Jun 28, 2014 at 4:20 AM, LearningOSG LearningOSG learning...@gmail.com wrote: Hi Sergey, This is a very very minor works in osg,please not mind,and thanks to use LearningOSG,this is what i am doing,and like this name,OSG is a excellent lower simulation layer,just like Linux. But for world customers,they even not know what is OSG,and many of them have no time to learn osg,they needed the final results,the finished simulator that they can used directly. cheers Learned osg five months ___ osg-users mailing list osg-users@lists.openscenegraph.org http
[osg-users] newbie issues using GLES 2.0
Hi Mike, yes, the question confuses when one starts to work with pure shader environments. the approach is to have a custom format and custom materials which are not so far implemented in core of osg. I found one osg compatible approach for materials see https://code.google.com/p/hogbox/ while the code has nice materials class https://code.google.com/p/hogbox/source/browse/trunk/src/hogbox/HogBoxMaterial.cpp the code provided lacks loader, another example format for shader-only based osg is internal format for http://osgjs.org/ there is though one catch - it is possible to save to this format from osg, but load only in osgjs, but it might shed light on how to proceed with own custom format https://github.com/cedricpinson/osg/tree/master/src/osgPlugins/osgjs also there is a split plugin which is needed if there is hardware limitation on vertex count https://github.com/cedricpinson/osg/tree/master/src/osgPlugins/split Regards Sergey On Thu, Jun 26, 2014 at 12:24 AM, Mike Metcalf metcalfnos...@mac.com wrote: We are putting together an mapping application targeted for the imx6 hardware. The drivers support GLES 2.0, with no fallback/support for previous versions. We have models and other resources in osgb files, and load them at run-time, attaching them to our scene graph as necessary. On our dev platforms (win7 and linux on x86) things render without issue, but when cross-compiled and deployed to our imx6 hardware, these osgb resources did not show. We traced it to bad shaders, and found on these forums that the reason is that ShaderGen.cpp was generating (fallback?) shaders which are not compatible with GLES 2.0. My first naive step was to modify the vertex and fragment shaders in ShaderGen to enable them to compile in our GLES GPU. We had to remove references to the fixed-function pipeline, and that included references to gl_Color (et al), which was how each vertex got it's starting material color. So... we could see our geometry on-screen, but the material colors as stored in the osgb file were unavailable. I then dug around GLSL 2.0 enough to tentatively conclude that the new method of supplying those vertex colors to the shader code is to declare vertex attributes in the vertex shader and then bind an array of attributes. But, and this is my question, how do we use the generalized approach of reading in osg::nodes from osgb files, attach them to the scenegraph and still bind attributes to them? It seems that we would either need to create a unique osg::program per osg::node we load and then somehow glean the vertex color information from the osg::node, load it into an array and bind that array to the shader program. Can anyone shed any light on this? I thing I'm missing something fairly fundamental. Many thanks in advance! Mike -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=59905#59905 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] newbie issues using GLES 2.0
Hi Mike. a little update to previous reply somehow I overlooked that hogbox has in fact plugin, which can serve as inspiration for you own https://code.google.com/p/hogbox/source/browse/trunk/src/#src%2FhogboxXmlPlugins%2FhogboxPlugin Regards Sergey On Thu, Jun 26, 2014 at 1:53 AM, Sergey Kurdakov sergey.fo...@gmail.com wrote: Hi Mike, yes, the question confuses when one starts to work with pure shader environments. the approach is to have a custom format and custom materials which are not so far implemented in core of osg. I found one osg compatible approach for materials see https://code.google.com/p/hogbox/ while the code has nice materials class https://code.google.com/p/hogbox/source/browse/trunk/src/hogbox/HogBoxMaterial.cpp the code provided lacks loader, another example format for shader-only based osg is internal format for http://osgjs.org/ there is though one catch - it is possible to save to this format from osg, but load only in osgjs, but it might shed light on how to proceed with own custom format https://github.com/cedricpinson/osg/tree/master/src/osgPlugins/osgjs also there is a split plugin which is needed if there is hardware limitation on vertex count https://github.com/cedricpinson/osg/tree/master/src/osgPlugins/split Regards Sergey On Thu, Jun 26, 2014 at 12:24 AM, Mike Metcalf metcalfnos...@mac.com wrote: We are putting together an mapping application targeted for the imx6 hardware. The drivers support GLES 2.0, with no fallback/support for previous versions. We have models and other resources in osgb files, and load them at run-time, attaching them to our scene graph as necessary. On our dev platforms (win7 and linux on x86) things render without issue, but when cross-compiled and deployed to our imx6 hardware, these osgb resources did not show. We traced it to bad shaders, and found on these forums that the reason is that ShaderGen.cpp was generating (fallback?) shaders which are not compatible with GLES 2.0. My first naive step was to modify the vertex and fragment shaders in ShaderGen to enable them to compile in our GLES GPU. We had to remove references to the fixed-function pipeline, and that included references to gl_Color (et al), which was how each vertex got it's starting material color. So... we could see our geometry on-screen, but the material colors as stored in the osgb file were unavailable. I then dug around GLSL 2.0 enough to tentatively conclude that the new method of supplying those vertex colors to the shader code is to declare vertex attributes in the vertex shader and then bind an array of attributes. But, and this is my question, how do we use the generalized approach of reading in osg::nodes from osgb files, attach them to the scenegraph and still bind attributes to them? It seems that we would either need to create a unique osg::program per osg::node we load and then somehow glean the vertex color information from the osg::node, load it into an array and bind that array to the shader program. Can anyone shed any light on this? I thing I'm missing something fairly fundamental. Many thanks in advance! Mike -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=59905#59905 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] GLSL-Debugger is moving along and builds on Windows
Hi Chris, you might add notice in old repository https://github.com/GLSL-Debugger/GLSL-Debugger that it moved to a new place. Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Shapes - Without ShapeDrawable that is
Hi, (btw what is your real name? Just check, we address everyone by real names, it is a policy of this mailing list ) you might take a look for a code in osgWorks https://code.google.com/p/osgworks/ namely https://code.google.com/p/osgworks/source/browse/trunk/src/osgwTools/Shapes.cpp Regards Sergey On Thu, Dec 26, 2013 at 12:16 AM, leetsnipersephirothninjade...@gmail.com leetsnipersephirothninjade...@gmail.com wrote: Dear List members! Warning: This is a „help a noob” kind of question. Sorry for sending my request or rather question, directly in mail. I'll try to keep it short. After spending an enormous amount of time looking for a tutorial or some good guide, I stumbled upon this message from the very same mailing list. Though, it's years old. http://lists.openscenegraph.org/pipermail/osg-users- openscenegraph.org/2007-December/004923.html The code works perfectly. And I could modify it to make sphere out of that. But I fear the result would be really taxing, even on modern hardware. I read Stackoverflow questions and various articles I found, and some of those said that I could just use a „mathematical shape” to do this. I have lost my browsing history since then, so I cannot link the exact page right now. It was a geometrical shape that would become a sphere with the right resolution. (You get the point, catch my drift. Like how you make a cylinder.) But. Which one should I go with? More importantly: Is there a pre-existing code that I could use my base and that I could build upon? Or any foundation would be much appreciated. The more shapes I could learn the better. (So far I got basic things like cubes, rectangles, circle [from the message], pyramid, cylinder.) Best regards, LSSND ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [ANN] Free Android game based on OSG Bullet released
Hi Marcin, took a look at youtube video ( don't have android phone to try ) but I have one idea for you. as the game uses only OpenGL ES features, it could be run under browser. I started to port osg to emscripten ( the port is not complete though I hope to update soon, but preliminary port is here - with some tweaks it works in browser https://github.com/Kurdakov/emscripten_OSG ) with this - it is possible to run your game in browser - and that is a major extension of possible coverage. BTW bullet was ported to emscripten too. Regards Sergey On Tue, Dec 10, 2013 at 11:42 AM, Marcin Hajder mhaj...@o2.pl wrote: kornerr wrote: Hi. Nice! Is its source code available? :) that's quite possible, as fast as we reach 10M downloads ;) -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=57628#57628 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Is OSG dead?
Hi Julio, no, osg is not dead. the main activity was and is on the mailing list. the problem with forum exists, and was discussed few times, but currently not enougth energy from people wanting to support forum materialized. this will be resolved someday, but currently just stick to mailing list, it is quite active. Regards Sergey On Wed, Oct 16, 2013 at 8:06 PM, Julio Jerez jerezjul...@gmail.com wrote: I register on the forum, and on tow mailing list. I also send private messages and email to the administrator and moderators asking to activate my account. ** ** but on the forum all I see if topic waiting approval message It seems that no moderator or administrator check the list anymore. ** ** Julio ** ** ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osg+osm
Hi Idar, it is not that easy, but here you may find some code at http://www.osgvisual.org/projects/osgvisual/wiki/OsgTerrainData Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] shader composing related link
Hi All, just to share, searching for shader composing stumbled across https://github.com/tlorach/nvFX https://developer.nvidia.com/sites/default/files/akamai/gamedev/docs/nvFX%20A%20New%20Shader-Effect%20Framework.pdf it is open sourced so maybe it might be of some interest to look at. Best regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgviewer segmentation fault under virtualbox
Hi Chen. just for your information: Ubuntu and osg work ok in VMWare player on windows ( which is free for non commercial/educational ussage ) Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] OpenGL ES 2.0 on windows
Hi Robert,
working with OpenGL ES 2.0 with Angle ( I also checked ATI OpenGL ES SDK )
with osg 3.2
I have a warning Detected OpenGL error invalid enumerant on this line in
State.cpp
glGetIntegerv(GL_MAX_TEXTURE_COORDS,_glMaxTextureCoords);
( in following part of code in function void
State::initializeExtensionProcs() )
if ( osg::getGLVersionNumber() = 2.0 ||
osg::isGLExtensionSupported(_contextID,GL_ARB_vertex_shader) ||
OSG_GLES2_FEATURES)
{
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS,_glMaxTextureUnits);
glGetIntegerv(GL_MAX_TEXTURE_COORDS,_glMaxTextureCoords);
}
I asked Angle project list that maybe they are wrong here ( but still ATI
ES SDK also lacks GL_MAX_TEXTURE_COORDS ) and they responded they are not,
the GL_MAX_TEXTURE_COORDS is underfined for OpenGL ES 2.0
So, possibly here there should be a code like
if ( osg::getGLVersionNumber() = 2.0 ||
osg::isGLExtensionSupported(_contextID,GL_ARB_vertex_shader) ||
OSG_GLES2_FEATURES)
{
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS,_glMaxTextureUnits);
if(OSG_GLES2_FEATURES)
{
_glMaxTextureCoords = _glMaxTextureUnits;
}
else
glGetIntegerv(GL_MAX_TEXTURE_COORDS,_glMaxTextureCoords);
}
?
Best regards
Sergey
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[osg-users] OpenGL ES 2.0 on windows
Hi Robert, Once you have the code working cleanly could you post the modified file to osg-submissions. ok, checking now. Regards Sergey On Wed, Jul 31, 2013 at 9:29 AM, Robert Osfield robert.osfi...@gmail.comwrote: Hi Sergey, You suggested change looks reasonable. Curious that others including myself haven't spotted this error so I can only presume that quite a few GLES implementations do indeed included support for GL_MAX_TEXTURE_COORDS. Once you have the code working cleanly could you post the modified file to osg-submissions. Thanks, Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] latest dev code and OpenGL ES 2.0 on linux/windows
Hi,
I try to make some experiments with OpenGL ES 2.0 on both windows and linux,
and while I myself is searching for answers ( I think will resolve in
coming days ), I will share few observations for anyone concerned.
I have following problem with latest development code.
On windows
using http://code.google.com/p/angleproject/ and
https://github.com/fantasydr/sdl-gles and SDL viewer example I
attempted to have
OpenGL ES 2.0 with visual studio compiler
( I used recommended settings )
Cmake settings for OpenGL ES 2.0
OSG_GL1_AVAILABLE OFF
OSG_GL2_AVAILABLE OFF
OSG_GL3_AVAILABLE OFF
OSG_GLES1_AVAILABLE OFF
OSG_GLES2_AVAILABLE ON
OPENGL_INCLUDE_DIR /pathtogles/include/
OPENGL_LIBRARY /pathtogles/lib/libGLESv2.so
OPENGL_egl_LIBRARY /pathtoegllib/libEGL.so
OSG_GL_DISPLAYLISTS_AVAILABLE OFF
SG_GL_MATRICES_AVAILABLEOFF
OSG_GL_VERTEX_FUNCS_AVAILABLE OFF
OSG_GL_VERTEX_ARRAY_FUNCS_AVAILABLE OFF
OSG_GL_FIXED_FUNCTION_AVAILABLE OFF
OSG_CPP_EXCEPTIONS_AVAILABLEOFF
While mostly it works - it compiles and runs, it fails to compile
build-in osg shaders ( though I checked to have D3Dcompiler_46.dll in
bin folder otherwise http://code.google.com/p/angleproject/ will not
work outside visual studio ),
You might find my OpenGL ES/SDL cpp file in attachment.
to check further problem I also compiled osg on linux with mesa es
2.0 support (on latest ubuntu )
with exact paths for opengl
OPENGL_egl_LIBRARY /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
OPENGL_gl_LIBRARY /usr/lib/x86_64-linux-gnu/mesa-egl/libGLESv2.so
somehow I also get problems in release build I get from osgviewer with cow.osg
the output reads
GraphicsWindowX11::init() - eglInitialize() succeded eglMajorVersion=1
iMinorVersion=4
GraphicsWindowX11::init() - window created =1
Warning: TexGen::apply(State) - not supported.
Warning: Material::apply(State) - not supported.
Warning: TexGen::apply(State) - not supported.
and no cow is visible
So does it mean that current opengl es implementation unusable?
(I will bebug on linux tomorrow, because so far adding
IF( NOT CMAKE_BUILD_TYPE )
SET( CMAKE_BUILD_TYPE Debug )
SET( CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} -DDEBUG )
ENDIF( NOT CMAKE_BUILD_TYPE )
to CMakeLists.txt causes problem with linker ( not sure it problem
with CMakeLists.txt or with my actions -
I'm not very quick when on linux ).
Regards
Sergey
/* OpenSceneGraph example, osgviewerSDL.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the Software), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
// (C) 2005 Mike Weiblen http://mew.cx/ released under the OSGPL.
// Simple example using GLUT to create an OpenGL window and OSG for rendering.
// Derived from osgGLUTsimple.cpp and osgkeyboardmouse.cpp
#include osgViewer/Viewer
#include osgViewer/ViewerEventHandlers
#include osgGA/TrackballManipulator
#include osgDB/ReadFile
#include osg/PositionAttitudeTransform
#include SDL.h
#include iostream
#include osgText/Text
#include osg/Geometry
osg::Node* createScene()
{
// create drawable geometry object
osg::Geometry* pGeo = new osg::Geometry;
// add 3 vertices creating a triangle
osg::Vec3Array* pVerts = new osg::Vec3Array;
pVerts-push_back( osg::Vec3( -1, 0, -1 ) );
pVerts-push_back( osg::Vec3( 1, 0, -1 ) );
pVerts-push_back( osg::Vec3( 0, 0, 1 ) );
pGeo-setVertexArray( pVerts );
// create a primitive set (add index numbers)
osg::DrawElementsUInt* pPrimitiveSet =
new osg::DrawElementsUInt( osg::PrimitiveSet::TRIANGLES, 0 );
pPrimitiveSet-push_back( 2 );
pPrimitiveSet-push_back( 1 );
pPrimitiveSet-push_back( 0 );
pGeo-addPrimitiveSet( pPrimitiveSet );
// create color array data (each corner of our triangle will have one color component)
osg::Vec4Array* pColors = new osg::Vec4Array;
pColors-push_back( osg::Vec4( 1.0f, 0.0f, 0.0f, 1.0f ) );
pColors-push_back( osg::Vec4( 0.0f, 1.0f, 0.0f, 1.0f ) );
pColors-push_back( osg::Vec4( 0.0f, 0.0f, 1.0f, 1.0f ) );
pGeo-setColorArray( pColors );
// make sure that our geometry is using one color per vertex
[osg-users] latest dev code and OpenGL ES 2.0 on linux/windows
Hi,
managed to compile latest osg debug on linux ( possible cmake-gui made
some some strange things after severl reconfigurations - absolutely
clean svn code compiled just fine ).
but still the same error in osgviewer ( now osgviewerd ) with OpenGL
ES 2.0 enabled
GraphicsWindowX11::init() - eglInitialize() succeded eglMajorVersion=1
iMinorVersion=4
GraphicsWindowX11::init() - window created =1
Warning: TexGen::apply(State) - not supported.
Warning: Material::apply(State) - not supported.
Warning: TexGen::apply(State) - not supported.
I will look with debugger tomorrow. but a small question - is such
output is expected on linux or is it osg bug?
Regards
Sergey
On Tue, Jul 23, 2013 at 8:19 PM, Sergey Kurdakov sergey.fo...@gmail.com wrote:
Hi,
I try to make some experiments with OpenGL ES 2.0 on both windows and linux,
and while I myself is searching for answers ( I think will resolve in
coming days ), I will share few observations for anyone concerned.
I have following problem with latest development code.
On windows
using http://code.google.com/p/angleproject/ and
https://github.com/fantasydr/sdl-gles and SDL viewer example I
attempted to have
OpenGL ES 2.0 with visual studio compiler
( I used recommended settings )
Cmake settings for OpenGL ES 2.0
OSG_GL1_AVAILABLE OFF
OSG_GL2_AVAILABLE OFF
OSG_GL3_AVAILABLE OFF
OSG_GLES1_AVAILABLE OFF
OSG_GLES2_AVAILABLE ON
OPENGL_INCLUDE_DIR /pathtogles/include/
OPENGL_LIBRARY /pathtogles/lib/libGLESv2.so
OPENGL_egl_LIBRARY /pathtoegllib/libEGL.so
OSG_GL_DISPLAYLISTS_AVAILABLE OFF
SG_GL_MATRICES_AVAILABLEOFF
OSG_GL_VERTEX_FUNCS_AVAILABLE OFF
OSG_GL_VERTEX_ARRAY_FUNCS_AVAILABLE OFF
OSG_GL_FIXED_FUNCTION_AVAILABLE OFF
OSG_CPP_EXCEPTIONS_AVAILABLEOFF
While mostly it works - it compiles and runs, it fails to compile
build-in osg shaders ( though I checked to have D3Dcompiler_46.dll in
bin folder otherwise http://code.google.com/p/angleproject/ will not
work outside visual studio ),
You might find my OpenGL ES/SDL cpp file in attachment.
to check further problem I also compiled osg on linux with mesa es
2.0 support (on latest ubuntu )
with exact paths for opengl
OPENGL_egl_LIBRARY /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
OPENGL_gl_LIBRARY /usr/lib/x86_64-linux-gnu/mesa-egl/libGLESv2.so
somehow I also get problems in release build I get from osgviewer with cow.osg
the output reads
GraphicsWindowX11::init() - eglInitialize() succeded eglMajorVersion=1
iMinorVersion=4
GraphicsWindowX11::init() - window created =1
Warning: TexGen::apply(State) - not supported.
Warning: Material::apply(State) - not supported.
Warning: TexGen::apply(State) - not supported.
and no cow is visible
So does it mean that current opengl es implementation unusable?
(I will bebug on linux tomorrow, because so far adding
IF( NOT CMAKE_BUILD_TYPE )
SET( CMAKE_BUILD_TYPE Debug )
SET( CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} -DDEBUG )
ENDIF( NOT CMAKE_BUILD_TYPE )
to CMakeLists.txt causes problem with linker ( not sure it problem
with CMakeLists.txt or with my actions -
I'm not very quick when on linux ).
Regards
Sergey
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[osg-users] latest dev code and OpenGL ES 2.0 on linux/windows
Hi Robert, OpenGL ES 2.0 does not support TexGen or Material, and in fact has fixed function pipeline at all. yes, just forgot it and seen few shaders in replacement of fixed pipeline. When using OpenGL ES 2.0 you need to use shaders exclusively, there is the osgUtil::ShaderGenVisitor that can attempt to convert some fixed function scene graphs across to shaders for you but it's not very sophisticated so can only handle quite simple scene graphs. ok, thanks. Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] OpenGL 3.x support
Hi, just for ref https://hogbox.googlecode.com has following code which might be of some use: https://code.google.com/p/hogbox/source/browse/trunk/include/hogbox/HogBoxMaterial.h https://code.google.com/p/hogbox/source/browse/trunk/src/hogbox/HogBoxMaterial.cpp https://code.google.com/p/hogbox/source/browse/trunk/include/hogbox/HogBoxLight.h https://code.google.com/p/hogbox/source/browse/trunk/src/hogbox/HogBoxLight.cpp Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Save rendered frames to video file.
Hi David, a practical solution is to write frames using https://code.google.com/p/osgworks/source/browse/trunk/src/osgwTools/ScreenCapture.cpp then to convert resulting frames to video using ffmpeg or one of free video editors. you might also use ffmpeg for real time encoding frames using approaches something like in https://github.com/neilmendoza/ofxMovieExporter/blob/master/src/ofxMovieExporter.cpp http://qgismapper.googlecode.com/svn-history/r59/trunk/mapper/video-capture/CompressThread.cpp http://vpman.googlecode.com/svn-history/r7/VPM/vc-video.cpp http://dvj.googlecode.com/svn-history/r580/trunk/src/LGL.module/LGL.cpp ( there are a lot of samples just search google in cpp files for av_write_frame ) I would recommend to setup FFmpeg video codec ( lossless codec FFV1) and later convert video to any desired format using ffmpeg ( ffv1 reduces hard drive access compared with raw images - but does not load cpu much ). Regards Sergey On Mon, May 27, 2013 at 6:10 PM, David Hornung webmaster.elj-ges...@web.de wrote: Hi, did somebody already implemented a component to save the recent frames in a video file in real time? The only solution I found was implemented using OpenCV http://lists.openscenegraph.org/pipermail/osg-users-openscenegraph.org/2012-August/059394.html Are there any other solutions? (OpenCV is a little bit too huge just for saving the frames to video file) Thank you! Cheers, David -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=54225#54225 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] How to apply textures to a model in openscenegraph?
Hi Lokesh in http://www.packtpub.com/openscenegraph-3-0-beginners-guide/book on support tab for the page of the book you may download sample code, in \2824_12_Code\2824_12_Code folder from download zip there is sharing_textures.cpp which has a class class ReadAndShareImageCallback : public osgDB::ReadFileCallback you are looking for as example make something similar, but before loading texture - change extension of loaded image I recommend to get existing osg books and read them - it will save you a lot of time. In India see http://www.junglee.com/mn/search/junglee/ref=nav_sb_noss?url=search-alias%3Dstripbooksfield-keywords=openscenegraph Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [Viewer] Detecting mouse move
Hi Asher
In some of my application, I would like to detect when a clic + mouse move
event happen. My goal is to display on screen during the clic + mouse move
only objects bounding boxes.
see osgkeyboardmouse example,
have an additional flag for clicked stateL
pseudocode:
case(osgGA::GUIEventAdapter::PUSH):
{
clicked = true;
_mx = ea.getX();
_my = ea.getY();
return false;
}
and for
case(osgGA::GUIEventAdapter::MOVE):
{
_mxnew = ea.getX();
_mynew = ea.getY();
if(clicked) coord of mouse changed
{
perform your actions
}
else
{
_mx = _mxnew;
_my = _mxnew;
return false;
}
case(osgGA::GUIEventAdapter::RELEASE):
{
clicked = false;
}
On Tue, May 21, 2013 at 1:00 AM, Asher Kamiraze
asher.kamir...@gmail.com wrote:
Hi all,
In some of my application, I would like to detect when a clic + mouse move
event happen. My goal is to display on screen during the clic + mouse move
only objects bounding boxes.
Do you have any hint on how to do this? Maybe some tips starting from
osgviewer could help!
___
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[osg-users] Detecting windows focus
Hi Bram, one suggestion for 'hackish' way to implement, for windows in osgViewer/GraphicsWindowWin32.cpp in handleNativeWindowingEvent( to add handling of boolean for focused state tracing events WM_SETFOCUS WM_KILLFOCUS WM_ACTIVATE like described in http://stackoverflow.com/questions/466354/how-can-i-tell-if-a-window-has-focus-win32-apianswer 4 and request the state when needed (either pushing in osg event Queue (getEventQueue (push) then checkEvents (get)) or by 'hackish' way ) or, if it is desired to have for many platforms and have official osg support - then there is need for patch for other platforms Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] plz help me out with PrecipitationEffect
Hi Kim, while you probably won't copy code from FlighGear http://www.flightgear.org/ (it is GPLed ) you might get inspirations from this OSG based game code Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Matrox M9188 OpenGL
Hi Chris, won't AMD Eyefinity 6 monitors on one card ( and I think 12 monitors on two cards - because they could work together, though I did not try, but if I understand correctly this will work http://hardforum.com/showthread.php?t=1645343 http://hardforum.com/showthread.php?t=1645343see also http://www.pcworld.com/article/251521/when_two_monitors_arent_enough.html ) suite your needs? Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Matrox M9188 OpenGL
Hi Chris, It is my understanding that AMD cards won't frame-lock without the S400 card you might be correct, but you mentioned, that rendering in not very demanding, thus setting VSync might be enough to soft-frame-lock on powerful card ( which should be oders of magnitude more powerful than old Matrox cards ) Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Questions about OSG
Hi Mike, in respect to vao you might look at this thread http://forum.openscenegraph.org/viewtopic.php?t=10001 with initial attempt to add it. with this you get a core profile, Are scenegraphs in general suited for games? yes, not all games use scenegraphs but most I know - do. scenegraphs are too expensive for games. it depends, but due to extensive use, scenegraphs like OSG are quite optimized for minimizing state changes, and thus there are games on smartphones and PCs which are based on OSG. I only know that Ogre3d is using an scenegraph too. that is correct, and Ogre3d is used in many games. the difference is though with OSG - that Ogre3d rendering pipeline is not thread safe, so only one core is used for all graphics operations ( while OSG can use one or more threads), Ogre3d is just somehow more popular among those who develops games, because it has additional features which are useful when developing games, but OSG is more powerful in respect to rendering flexibility I also saw that there are many different implementations of scenegraphs, like BSP octree etc. OSG is not about octree of BSP thought there are use samples see * OpenSceneGraph* 3 Cookbook for octree and also there are examples for BSP use in osgBullet and Delta3D which are related to OSG. Also OSG has KdTree implementation You might want to look at http://www.packtpub.com/openscenegraph-3-0-beginners-guide/book?tag=ns/openscene-abr4/0211book to get more details. as for 'non' scene graph games - in fact almost all are using rendering library of some sort, it is just that they could be less general than proper scenegraph to make some features to run faster, but I'm not a specialist in non scene graphs games, so could not elaborate on it much. Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] glslDevil
Hi Chris, I just wanted to followup here and mention that this project is now on GitHub and I'm looking for people who can assist with it. https://github.com/XenonofArcticus/GLSL-Debugger/https://github.com/XenonofArcticus/GLSL-Debugger/ I did not notice announcement neither at your twitter, or G+ - while I will hardly spend time on this great tool, I, at least, will reshare. Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Possible to make pixel-pretty text in OSG?
Hi Would using OSGPango for text help with this, Yes, I would recommend to use http://code.google.com/p/osgpango/ ( based on http://code.google.com/p/osgcairo/ ) by Jeremy Moles, at least it gives best results I seen and it is not difficult to use ( there examples there ). Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Using OpenSceneGraph with 3rd party window libraries
Hi Randall, so, I can only guess, what goes wrong (I'm sorry). but , in case there are several windowing libraries, they could run in separate threads http://msdn.microsoft.com/en-us/library/ms810439.aspx - so that their even loops are not intersected, the communication should be async this way, but then other ( non osg ) thread window messages should not touch handleNativeWindowingEvent Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Using OpenSceneGraph with 3rd party window libraries
Hi Randall, but as soon as I use the other library to create a window ... the application crashes maybe others will give you better response, but I would suggest to set osg into single threaded mode Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Building OSG with FFMPEG
Hi Jason, have downloaded everything and tried to build it and i am getting errors with AVFormatParameters not being declared. it looks like your problem depends on version of ffmpeg, current stable version uses relatively old version of ffmpeg ( pre 0.7 ), current development (svn ) version uses latest ffmpeg (or any version of ffmpeg since 0.8 ), see submission forum ( or mailing list archive ) for details, so in order to use new ffmpeg - get newest ffmpeg plugin or use older ffmpeg with current osg. Regards Sergey On Thu, Feb 28, 2013 at 1:47 AM, jason massey wrote: Hi, I have downloaded everything and tried to build it and i am getting errors with AVFormatParameters not being declared. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Fwd: setting a polygon height
Hi Mohammed, yes - it is possible - to move vertices changing their coordinates in callback or in shader (say you have 'flat cube' assuming initially you have all neccesary cube vertices in place, then you have what you want, if you have just one square - then tesselate accordingly, then move vertices as assumed initially ). ( every example with cloth or ocean, for example, makes just that - moves vertices, the same way it is possible to achieve what you need), correct? as to how to move vertice coordinaties in either case, just check examples Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Dynamic / incremental mesh generation or triangulation
Hi Joe, just a suggestion taken from ideas how the dynamic sculpting is done in Blender ( for reference see http://code.blender.org/index.php/2011/10/dynamic-topology-sculpting/ http://hal.inria.fr/docs/00/60/65/16/PDF/Freestyle.pdf and http://farsthary.files.wordpress.com/2011/10/dynamic-subdivision-sculpting-final.pdf- just look for PBHV and then http://wiki.blender.org/index.php/Dev:2.5/Source/Modeling/PBVH ) all these refs ( not needed to read carefully, just to browse ) are for one idea - split your geometry using spatial structure ( in Blender it is pbhv - but an alternative would be http://en.wikipedia.org/wiki/Range_treeor http://en.wikipedia.org/wiki/Interval_tree or maybe some sort of adaptive octree ) then you would need to find changed node, which contains mesh which you will 'remesh' using some heuristic or restricted delaunay to fit vertices to where they are ( to glue with other spacial nodes ) or to use code such as of tetgen http://tetgen.berlios.de/features.html#F3 ( though license is MIT - it has some additional requirements which might be quite complicated to some uses ) so it is what I can see - you keep most of topology intact, but need to find 'node' to change and some code to glue new tesselation of changed node with old nodes. Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Dynamic / incremental mesh generation or triangulation
Hi Joe, on a second thought - another approach would be to use marching cubes see http://ivl.calit2.net/wiki/index.php/Real-Time_Meshing_of_Dynamic_Point_Clouds http://www.youtube.com/watch?v=1DAvgLCj_RQ Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
