Re: [osg-users] What are txf and tpf files ?
I tried changing both LOD and Eye point but it didn't work. As an after thought i opened task manager to monitor the memory consumption of osgviewer and then loaded the txp file. There was no increase in memory consumption which was a bit disappointing. Then i opened another simpler txp and the memory consumption just shot up. So i can conclude fairly that the osgviewer is not reading the txp file at all. As of now i am looking at other viewers / options mentioned here. And i would love to get more nudges in the right direction. Thank you all. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15575#15575 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Callback for actors being culled?
By digging some more I found an old forum message that answers my question, so please disregard my request. http://www.mail-archive.com/osg-users@lists.openscenegraph.org/msg16202.html Cheers, Martin -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15576#15576 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] svn error during checkout
Hi S., Months? are you having problems with svn for months? That changes everything, I'm still having troubles to find out what could be happening, it's a weird error that could be from Apache, Apr, Subversion... and there is no much info in the logs. But I'm working on it. JL. On Wed, Jul 29, 2009 at 7:56 AM, S Andreasonsandrea...@gmail.com wrote: Hi, I am having trouble updating by svn, This started a few months ago, but until Flightgear began requiring a newer version of osg, I didn't make fixing this a priority. I have upgraded svn as reported by --version svn, version 1.6.2 (r37639) compiled Jul 28 2009, 21:53:53 and here is the problem, output: svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph A OpenSceneGraph/include/osgWidget/Widget A OpenSceneGraph/include/osgWidget/Browser A OpenSceneGraph/include/osgWidget/ViewerEventHandlers A OpenSceneGraph/include/osgWidget/VncClient A OpenSceneGraph/include/osgWidget/Version A OpenSceneGraph/include/osgWidget/Table svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org After svn sends what is needed, I get EXACTLY 15 seconds (95% of the time, a 10 second quiet break and another 15 seconds the other 5% of the time) of files before it always gives this error. I am connected to internet by Modem, and after reading other posts here from months ago, I can answer the next question, No, I am not behind a proxy. The only thing left that I can think of, is something in my configuration before compiling, so here is that long output: ./configure --with-apr=/usr/local/apr/bin/apr-config --with-apr-util=/usr/local/apr/bin/apu-config configure: Configuring Subversion 1.6.2 configure: creating config.nice checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking for g++... g++ checking whether we are using the GNU C++ compiler... yes checking whether g++ accepts -g... yes checking how to run the C preprocessor... gcc -E checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking target system type... i686-pc-linux-gnu checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking whether ln -s works... yes checking for a BSD-compatible install... /usr/local/bin/ginstall -c configure: Apache Portable Runtime (APR) library configuration checking for APR... yes checking APR version... 0.9.13 configure: Apache Portable Runtime Utility (APRUTIL) library configuration checking for APR-util... yes checking APR-UTIL version... 0.9.13 checking for pkg-config... /usr/local/bin/pkg-config configure: checking neon library checking neon library version... 0.26.2 checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes configure: looking for apr_memcache as part of apr-util checking apr_memcache.h usability... no checking apr_memcache.h presence... no checking for apr_memcache.h... no checking for Apache module support via DSO through APXS... no == WARNING: skipping the build of mod_dav_svn try using --with-apxs == configure: checking sqlite library checking sqlite amalgamation file version... amalgamation found and is okay configuring libtool now checking for a sed that does not truncate output... /usr/bin/sed checking for ld used by gcc... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for /usr/bin/ld option to reload object files... -r checking for BSD-compatible nm... /usr/bin/nm -B checking how to recognize dependent libraries... pass_all checking dlfcn.h usability... yes checking dlfcn.h presence... yes checking for dlfcn.h... yes checking how to run the C++ preprocessor... g++ -E checking for g77... g77 checking whether we are using the GNU Fortran 77 compiler... yes checking whether g77 accepts -g... yes checking the maximum length of command line arguments... 98304 checking command to parse /usr/bin/nm -B output from gcc object... ok checking for objdir... .libs checking for ar... ar checking for ranlib... ranlib checking for strip... strip checking if gcc supports -fno-rtti
Re: [osg-users] problems with svn repository
On 28/07/09 8:37 PM, Paul Martz wrote: Hi JL-- This problem is not limited to TortoiseSVN on Windows. I see the same thing when I try to svn checkout on OS X. I didn't have any problems with OS X (update) or Linux (checkout) today or over the last few days. /ulrich ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] svn error during checkout
Hello, I am having thit same error when trying to use OSG svn through a corporate proxy. Just 2 cents of info. cheers, Marcus On Wed, Jul 29, 2009 at 10:08 AM, Jose Luis Hidalgojoseluis.hida...@gmail.com wrote: Hi S., Months? are you having problems with svn for months? That changes everything, I'm still having troubles to find out what could be happening, it's a weird error that could be from Apache, Apr, Subversion... and there is no much info in the logs. But I'm working on it. JL. On Wed, Jul 29, 2009 at 7:56 AM, S Andreasonsandrea...@gmail.com wrote: Hi, I am having trouble updating by svn, This started a few months ago, but until Flightgear began requiring a newer version of osg, I didn't make fixing this a priority. I have upgraded svn as reported by --version svn, version 1.6.2 (r37639) compiled Jul 28 2009, 21:53:53 and here is the problem, output: svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph A OpenSceneGraph/include/osgWidget/Widget A OpenSceneGraph/include/osgWidget/Browser A OpenSceneGraph/include/osgWidget/ViewerEventHandlers A OpenSceneGraph/include/osgWidget/VncClient A OpenSceneGraph/include/osgWidget/Version A OpenSceneGraph/include/osgWidget/Table svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org After svn sends what is needed, I get EXACTLY 15 seconds (95% of the time, a 10 second quiet break and another 15 seconds the other 5% of the time) of files before it always gives this error. I am connected to internet by Modem, and after reading other posts here from months ago, I can answer the next question, No, I am not behind a proxy. The only thing left that I can think of, is something in my configuration before compiling, so here is that long output: ./configure --with-apr=/usr/local/apr/bin/apr-config --with-apr-util=/usr/local/apr/bin/apu-config configure: Configuring Subversion 1.6.2 configure: creating config.nice checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking for g++... g++ checking whether we are using the GNU C++ compiler... yes checking whether g++ accepts -g... yes checking how to run the C preprocessor... gcc -E checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking target system type... i686-pc-linux-gnu checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking whether ln -s works... yes checking for a BSD-compatible install... /usr/local/bin/ginstall -c configure: Apache Portable Runtime (APR) library configuration checking for APR... yes checking APR version... 0.9.13 configure: Apache Portable Runtime Utility (APRUTIL) library configuration checking for APR-util... yes checking APR-UTIL version... 0.9.13 checking for pkg-config... /usr/local/bin/pkg-config configure: checking neon library checking neon library version... 0.26.2 checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes configure: looking for apr_memcache as part of apr-util checking apr_memcache.h usability... no checking apr_memcache.h presence... no checking for apr_memcache.h... no checking for Apache module support via DSO through APXS... no == WARNING: skipping the build of mod_dav_svn try using --with-apxs == configure: checking sqlite library checking sqlite amalgamation file version... amalgamation found and is okay configuring libtool now checking for a sed that does not truncate output... /usr/bin/sed checking for ld used by gcc... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for /usr/bin/ld option to reload object files... -r checking for BSD-compatible nm... /usr/bin/nm -B checking how to recognize dependent libraries... pass_all checking dlfcn.h usability... yes checking dlfcn.h presence... yes checking for dlfcn.h... yes checking how to run the C++ preprocessor... g++ -E checking for g77... g77 checking whether we are using the GNU Fortran 77 compiler... yes checking whether g77 accepts -g... yes checking the maximum length of command line arguments... 98304
Re: [osg-users] svn error during checkout
Hi All, Could you try again? I've changed some apache timeouts (there were too short), and now I can make checkouts with no dropped connections. TortoiseSVN makes long pauses during the communication with the server, that's why we have more troubles with it than with other svn clients. I hope this is the problem, if you still have this issue report it, please. Thank you all for you patience, JL. On Wed, Jul 29, 2009 at 10:38 AM, Marcus Fritzschfrits...@googlemail.com wrote: Hello, I am having thit same error when trying to use OSG svn through a corporate proxy. Just 2 cents of info. cheers, Marcus On Wed, Jul 29, 2009 at 10:08 AM, Jose Luis Hidalgojoseluis.hida...@gmail.com wrote: Hi S., Months? are you having problems with svn for months? That changes everything, I'm still having troubles to find out what could be happening, it's a weird error that could be from Apache, Apr, Subversion... and there is no much info in the logs. But I'm working on it. JL. On Wed, Jul 29, 2009 at 7:56 AM, S Andreasonsandrea...@gmail.com wrote: Hi, I am having trouble updating by svn, This started a few months ago, but until Flightgear began requiring a newer version of osg, I didn't make fixing this a priority. I have upgraded svn as reported by --version svn, version 1.6.2 (r37639) compiled Jul 28 2009, 21:53:53 and here is the problem, output: svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph A OpenSceneGraph/include/osgWidget/Widget A OpenSceneGraph/include/osgWidget/Browser A OpenSceneGraph/include/osgWidget/ViewerEventHandlers A OpenSceneGraph/include/osgWidget/VncClient A OpenSceneGraph/include/osgWidget/Version A OpenSceneGraph/include/osgWidget/Table svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org After svn sends what is needed, I get EXACTLY 15 seconds (95% of the time, a 10 second quiet break and another 15 seconds the other 5% of the time) of files before it always gives this error. I am connected to internet by Modem, and after reading other posts here from months ago, I can answer the next question, No, I am not behind a proxy. The only thing left that I can think of, is something in my configuration before compiling, so here is that long output: ./configure --with-apr=/usr/local/apr/bin/apr-config --with-apr-util=/usr/local/apr/bin/apu-config configure: Configuring Subversion 1.6.2 configure: creating config.nice checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking for g++... g++ checking whether we are using the GNU C++ compiler... yes checking whether g++ accepts -g... yes checking how to run the C preprocessor... gcc -E checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking target system type... i686-pc-linux-gnu checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking whether ln -s works... yes checking for a BSD-compatible install... /usr/local/bin/ginstall -c configure: Apache Portable Runtime (APR) library configuration checking for APR... yes checking APR version... 0.9.13 configure: Apache Portable Runtime Utility (APRUTIL) library configuration checking for APR-util... yes checking APR-UTIL version... 0.9.13 checking for pkg-config... /usr/local/bin/pkg-config configure: checking neon library checking neon library version... 0.26.2 checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes configure: looking for apr_memcache as part of apr-util checking apr_memcache.h usability... no checking apr_memcache.h presence... no checking for apr_memcache.h... no checking for Apache module support via DSO through APXS... no == WARNING: skipping the build of mod_dav_svn try using --with-apxs == configure: checking sqlite library checking sqlite amalgamation file version... amalgamation found and is okay configuring libtool now checking for a sed that does not truncate output... /usr/bin/sed checking for ld used by gcc... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for
[osg-users] OSG and WPF Questions
Hello, I'm new to OSG and WPF (though I've read quite a view tutorials the past 2 weeks) so I hope I don't ask too many stupid questions :) Task I have to program something very similar to a CAD-program. The program should be able to load files (stl-files) and you should be able to manipulate the model in different ways, selecting triangles, points, cutting, ... For the visualisation of the models and functionality I chose OSG since it seems to offer quite a lot and is pretty fast. (Also it has a reader for stl-files ;) ) The UI has to be made with WPF. So basically the OSG-window should be controlled via menus, buttons, mouse and keyboard-input. What I found out For the past view days I've researched this matter and found only a few tutorials on msdn and codeproject. But if I got that right the way to do the integration is: - C++: create a class (OpenGLHwnd) that inherits from HwndHost - C++: create a window (or a dialog, but dialog didn't work for me) - C++: attach the viewer with the window (code taken from this site ... .NET-control ...) - C++: compile the whole thing as managed dll (/clr) - C#/WPF: use the dll and attach an instance of the class as child in a placeholder In the OpenGLHwnd-class I have to override BuildWindowCore, DestroyWindowCore, OnRenderSizeChanged and OnRender. Status Well, I just set up the whole thing and tried to make the OpenGL-window fit in the WPF-application. In this OpenGL-Window I just try to display two pyramids using OSG. My Problem If I use normal OpenGL-commands everything is displayed, but if I use the viewer, somehow not only the WPF-window is opened, but also an additional fullscreen window which shows the pyramids. I don't seem to get the window out of the fullscreen mode and fit in the WPF-application. My Questions Well, can anyone give me some advise to fix the problem? Or can someone tell me if the way I want to integrate OSG in WPF is right, because it seems pretty much like a bad workaround to me ^^; Are there any tutorials on this matter? (I've looked at the osgDotNetDemo from hesicong.net, but it doesn't work - applicationcan't be initialized) I hope everything is understandable since english is not my mother tounge. Thank you in advance! Cheers, Martin -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15581#15581 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Serializing / Deserializing an osg::Node to memory pointer
Hi there, I finally got around to implementing this functionality (!!) - it works great with osg as the target format, but with ive the getReaderWriteForExtension call returns null. I assume I am missing an environment variable or something and the OSG cannot find the correct plugin? For clarification, I have osgdb_ive.dll located at C:\OpenSceneGraph\Bin\osgPlugins-2.8.0 and I have the following environment variables set (under Windows Vista 32bit) OSG_FILE_PATH = C:\OpenSceneGraph\data;C:\OpenSceneGraph\data\Images;C:\OpenSceneGraph\data\fonts OSG_ROOT = C:\OpenSceneGraph OSGHOME = C:\OpenSceneGraph Path = C:\OpenSceneGraph\bin;C:\OpenSceneGraph\share\OpenSceneGraph\bin\ ... Thank you! Andrew -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15582#15582 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] create a image
Hello,
I would like create a Image. I read the mail osg Image data in the
archive of the mailing list. And I try it:
const long size = width*height*3;
unsigned char* data = (unsigned char*)calloc(size, sizeof(unsigned char));
for(long i=0; i size ; i+= 3)
{
data[i] = 1;//red
data[i+1] = 0;//green
data[i+2] = 0;//blue
}
// image
osg::ref_ptrosg::Image image = new osg::Image;
image-allocateImage(width, height, 1, GL_RGB, GL_UNSIGNED_BYTE);
image-setOrigin(osg::Image::BOTTOM_LEFT);
image-setImage(width, height, 1, GL_RGB, GL_RGB, GL_UNSIGNED_BYTE,
data, osg::Image::NO_DELETE);
osgDB::writeImageFile(*image, /home/.../test.jpg);
But it doesn't work. I get a black image. What is my mistake?
And one more question. GL_UNSIGNED_BYTE means 8 bits per component
(r,g,b). Right? I would like use 16 bits or more per component. Is it
possible?
Cheers, Martin
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Re: [osg-users] create a image
Martin, I think you want this: data[i] = 255;//red David ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] create a image
Year! That is right. I feel awful about this mistake. First I try GL_FLOAT and I forget to change the value from 1 to 255. Thanks for your help. Martin Am 29.07.2009 11:39, schrieb David Spilling: Martin, I think you want this: data[i] = 255;//red David ___ 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] osgOcean 1.0 (LGPL) Released
I have the latest binary of Cmake, and this is a larger version of the image) [Image: http://i16.photobucket.com/albums/b15/Th3Flyboy/issue.jpg ] as far as the dependencies goes, it doesn't even get me that far to ask for that Peter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15586#15586 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osg::View::computeIntersections and Shaders
Hi all, I will time to explain my problem clearly this time :) I use osg::View::computeIntersections to get the picked node. When a node is picket, i apply a shader effect. The select effect is done by a class SelectEffect wich inherate of osgFX::Effect. To apply the select effect i insert a SelectEffect between the picked node and its parent. Then to remove the effect, i delete the SelectEffect and restor initial parent. The problem is when i call osg::View::computeIntersections, it do not intersect nodes with an select effect applied. If i display the intersected drawable list returned by computeIntersections, before and after have applied the select effect on the node containing the picked drawable, the drawable simply disapear from list. Is there any link between shaders and osg::View::computeIntersections ? I cant get it from source code. Thanks for your attention, Regards, Harold ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Optimizer changes LOD rangemode
Hi All, Using osg 2.8, it seems that the optimizer option COMBINE_ADJACENT_LODS doesn't take care of LOD rangemode. LOD children with rangemode PIXEL_SIZE_ON_SCREEN are merged in a LOD with rangemode DISTANCE_FROM_EYE_POINT. Regards, -- Fabien ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] create a image
Martin, And for the second question, yes, you can use 16 bits per channel. GL_UNSIGNED_BYTE means 8 bits per channel, so GL_UNSIGNED_SHORT is for 16 bits. Mourad 2009/7/29 Martin Großer grosser.mar...@gmx.de Year! That is right. I feel awful about this mistake. First I try GL_FLOAT and I forget to change the value from 1 to 255. Thanks for your help. Martin Am 29.07.2009 11:39, schrieb David Spilling: Martin, I think you want this: data[i] = 255;//red David -- ___ osg-users mailing listosg-us...@lists.openscenegraph.orghttp://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] create a image
Hello Mourad,
ok, I can change it to GL_UNSIGNED_SHORT and I can change the internal
pixel format to GL_RGB16, but the data value is a pointer to a unsigned
char. Unsigned char is also 8 bit and not 16 bit?
Here the changed version:
const long size = width*height*3;
unsigned char* data = (unsigned char*)calloc(size, sizeof(unsigned short));
for(long i=0; i size ; i+= 3)
{
data[i] = 65535;//red
data[i+1] = 0;//green
data[i+2] = 0;//blue
}
// image
osg::ref_ptrosg::Image image = new osg::Image;
image-allocateImage(width, height, 1, GL_RGB, GL_UNSIGNED_SHORT);
image-setOrigin(osg::Image::BOTTOM_LEFT);
image-setImage(width, height, 1, GL_RGB16, GL_RGB16, GL_UNSIGNED_SHORT,
data, osg::Image::NO_DELETE);
osgDB::writeImageFile(*image, /home/.../test.jpg);
What type is possible for the data value? And what happens when I use
GL_FLOAT? There are 32 bits?
My main problem is, I don't understand the data value.
Cheers,
Martin
Am 29.07.2009 13:25, schrieb Mourad Boufarguine:
Martin,
And for the second question, yes, you can use 16 bits per channel.
GL_UNSIGNED_BYTE means 8 bits per channel, so GL_UNSIGNED_SHORT is for
16 bits.
Mourad
2009/7/29 Martin Großer grosser.mar...@gmx.de
mailto:grosser.mar...@gmx.de
Year! That is right. I feel awful about this mistake.
First I try GL_FLOAT and I forget to change the value from 1 to 255.
Thanks for your help.
Martin
Am 29.07.2009 11:39, schrieb David Spilling:
Martin,
I think you want this:
data[i] = 255;//red
David
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Re: [osg-users] Serializing / Deserializing an osg::Node to memory pointer
To clarify this problem, I have checked my environment variables and added the plugins directory to PATH, I also was missing zlib1.dll which I have copied to the bin directory. Now when I go to the command prompt and type osgconv --format ive it comes back with a ReaderWriter for the IVE format, whereas before it popped up an error that zlib was missing. However ... In my code it still fails to load the ReaderWriter for the IVE format. /// std::string plugin = osgDB::Registry::instance()-createLibraryNameForExtension(ive); osgDB::Registry::LoadStatus status = osgDB::Registry::instance()-loadLibrary(plugin); // Status comes back as Not Loaded / Is there anything I'm missing here? Thanks very much, Andrew -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15593#15593 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OSG and WPF Questions
Hi, seems like the 5 posts above should be in a new topic ^^; Addition to my post: I got the osgNETDemo running, but still its WindowsForms and not WPF, so I'd still be happy about any advise /help someone could give me :) -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15594#15594 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OSG and WPF Questions
Hi Martin, You can capsulate the OSG-stuff in an ActiveX component also. Even though I don't like COM technology, it may be useful in some cases. Please be careful about singletons and module globals. Can 2009/7/29 Martin Fleck eladamri...@hotmail.com Hello, I'm new to OSG and WPF (though I've read quite a view tutorials the past 2 weeks) so I hope I don't ask too many stupid questions :) Task I have to program something very similar to a CAD-program. The program should be able to load files (stl-files) and you should be able to manipulate the model in different ways, selecting triangles, points, cutting, ... For the visualisation of the models and functionality I chose OSG since it seems to offer quite a lot and is pretty fast. (Also it has a reader for stl-files ;) ) The UI has to be made with WPF. So basically the OSG-window should be controlled via menus, buttons, mouse and keyboard-input. What I found out For the past view days I've researched this matter and found only a few tutorials on msdn and codeproject. But if I got that right the way to do the integration is: - C++: create a class (OpenGLHwnd) that inherits from HwndHost - C++: create a window (or a dialog, but dialog didn't work for me) - C++: attach the viewer with the window (code taken from this site ... .NET-control ...) - C++: compile the whole thing as managed dll (/clr) - C#/WPF: use the dll and attach an instance of the class as child in a placeholder In the OpenGLHwnd-class I have to override BuildWindowCore, DestroyWindowCore, OnRenderSizeChanged and OnRender. Status Well, I just set up the whole thing and tried to make the OpenGL-window fit in the WPF-application. In this OpenGL-Window I just try to display two pyramids using OSG. My Problem If I use normal OpenGL-commands everything is displayed, but if I use the viewer, somehow not only the WPF-window is opened, but also an additional fullscreen window which shows the pyramids. I don't seem to get the window out of the fullscreen mode and fit in the WPF-application. My Questions Well, can anyone give me some advise to fix the problem? Or can someone tell me if the way I want to integrate OSG in WPF is right, because it seems pretty much like a bad workaround to me ^^; Are there any tutorials on this matter? (I've looked at the osgDotNetDemo from hesicong.net, but it doesn't work - applicationcan't be initialized) I hope everything is understandable since english is not my mother tounge. Thank you in advance! Cheers, Martin -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15581#15581 ___ 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 and WPF Questions
Hi Martin,
From memory (I've worked with WPF before), each WPF control has at its root
an HWND handle, which is what the osgDotNet demo uses to bind the open scene
graph to the Windows forms control.
So I think if you substitute the HWND handle with the WPF HWND the osgDotNet
stuff should work.
Here - I'm using this (but Windows Forms) to initialise an OpenSceneGraph on
a WinForms user control (which is probably very similar to the osgDotNet
demo)
Try googling WPF HWND Interop and see what you come up with. Apologies if
you have already tried this.
Also I don't know how to stop the other window appearing - that sounds like
an OSG problem and I'm no expert in OSG!!
Cheers,
Andrew
/
void RenderSurfaceView::InitOSG()
{
RECT rect;
// Get the UserControl's Win32 handle
HWND mHwnd=(HWND)this-Handle.ToInt32();
// Get the client area
GetWindowRect(mHwnd, rect);
// Create a WindowData struct from the Win32 Handle
// WindowData is used to pass in the Win32 window handle attached
the GraphicsContext::Traits structure
osg::ref_ptrosg::Referenced windata = new
osgViewer::GraphicsWindowWin32::WindowData(mHwnd);
osg::ref_ptrosg::GraphicsContext::Traits traits = new
osg::GraphicsContext::Traits;
// Now setup the GraphicsContext::Traits by setting width, height, x
position, y position etc...
traits-x = 0;
traits-y = 0;
traits-width = rect.right - rect.left;
traits-height = rect.bottom - rect.top;
traits-windowDecoration = false;
traits-doubleBuffer = true;
traits-sharedContext = 0;
traits-inheritedWindowData = windata;
// We must set the pixelformat before we can create the OSG
Rendering Surface
PIXELFORMATDESCRIPTOR pixelFormat =
{
sizeof(PIXELFORMATDESCRIPTOR),
1,
PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL|PFD_DOUBLEBUFFER,
PFD_TYPE_RGBA,
32,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0,
24,
0,
0,
PFD_MAIN_PLANE,
0,
0, 0, 0
};
// Get the device context for the Win32 handle to the control
HDC hdc = ::GetDC(mHwnd);
if (hdc==0)
{
::DestroyWindow(mHwnd);
return ;
}
// Set the pixel format on the device context
int pixelFormatIndex = ::ChoosePixelFormat(hdc, pixelFormat);
if (pixelFormatIndex==0)
{
::ReleaseDC(mHwnd, hdc);
::DestroyWindow(mHwnd);
return ;
}
if (!::SetPixelFormat(hdc, pixelFormatIndex, pixelFormat))
{
::ReleaseDC(mHwnd, hdc);
::DestroyWindow(mHwnd);
return ;
}
// Create an Open Scene Graph graphics context
osg::ref_ptrosg::GraphicsContext gc =
osg::GraphicsContext::createGraphicsContext(traits);
// Create an Open Scene Graph camera
this-camera = new osg::Camera;
osg::CullSettings::CullingMode cullMode =
osg::CullSettings::ENABLE_ALL_CULLING;
// Force all culling on
camera-setCullingMode(cullMode);
// Set the graphics context on the camera and the viewport
camera-setGraphicsContext(gc);
camera-setViewport(new
osg::Viewport(0,0,traits-width,traits-height));
camera-setDrawBuffer(GL_BACK);
camera-setReadBuffer(GL_BACK);
// Finally, create an osgViewer instance and add the camera to it
this-osgViewer = new osgViewer::Viewer();
osgViewer-getCamera()-setClearColor(osg::Vec4(0.8,0.8,0.8,1));
osgViewer-addSlave(camera);
// ..
// Run the Open Scene Graph thread
RunOSG();
// And set the Is Initialised flag
this-osgInitialised = true;
}
/
On Wed, Jul 29, 2009 at 1:50 PM, Martin Fleck eladamri...@hotmail.comwrote:
Hi,
seems like the 5 posts above should be in a new topic ^^;
Addition to my post: I got the osgNETDemo running, but still its
WindowsForms and not WPF, so I'd still be happy about any advise /help
someone could give me :)
--
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http://forum.openscenegraph.org/viewtopic.php?p=15594#15594
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Re: [osg-users] OSG and WPF Questions
Hi All. the following link might be of some help http://www.codeproject.com/KB/WPF/WPFOpenGL.aspx Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] MDI application with osgViewer::Viewer on dual monitors
Hi Jeff, I can't help you with your C++/CLI MDI issues, but this one I can answer. On another topic, I recently downloaded some OSG2.8.1 dlls and the dll names are all prefixed with osg55-. What's that all about? This was done around OSG 2.2-time, in order to avoid DLL hell. It effectively versions DLLs (it's like the SO version in Linux/Unix .so shared libraries, but there it's embedded in the file, whereas on Windows we have to use a prefix to the file name). In essence, whenever an app tries to load an OSG DLL, it will use a filename like osgXX-libraryname.dll, and that ensures that it loads the right version of the DLL. Previously, if you had multiple versions of OSG DLLs on your path, you could get into situations where the wrong version was loaded at runtime which resulted in crashes. And since the DLL filename to load is embedded in the import library that your app links to (.lib), the filename doesn't make any difference to the user/developer. In short, it fixes potential problems, but doesn't cause any additional ones. Hope that clears things up, J-S -- __ Jean-Sebastien Guayjean-sebastien.g...@cm-labs.com http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [3rdparty] osgOcean 1.0 (LGPL) Released
Hi Peter, as far as the dependencies goes, it doesn't even get me that far to ask for that Don't show the advanced options, that's just noise and doesn't relate to your current problem. If you just check what values it gives for the OSG libraries, and if they're not right fix them manually, then click Configure again, what do you get? J-S -- __ Jean-Sebastien Guayjean-sebastien.g...@cm-labs.com http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] create a image
Hello Martin, This is totally unrelated to your question: Please don't reply to an existing message when you want to start a new thread of discussion. Please start a new message instead. If you don't want to type the mailing list address (as I suspect that's the main reason people keep doing this), use an address book. For those of us using threaded mail readers, what you did makes it look like your message was a reply to the other thread (OSG and WPF Questions). And it seems that on the forum, the same thing happened (your message wound up in the other thread). See: http://forum.openscenegraph.org/viewtopic.php?p=15581 That means that less people will be likely to see your question since they may not be reading all threads. Thanks, J-S -- __ Jean-Sebastien Guayjean-sebastien.g...@cm-labs.com http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OSG and WPF Questions
Hello everyone, thank you for your replies :) @Sergey: Thank you but I've tried exactly that, but the problem is that I want to integrate the window in the WPF-application and not open another window :( @Andrew: If I'm not wrong WPF uses only one HWND for the whole application. I guess that is where the problem lies, maybe I mix up my handlers. Anyway thank you for the code, maybe another way is to create a winforms-control and embed it into WPF (though it seems very strange OSG-Winforms-WPF). @Can: OK, I've never worked with ActiveX before so I'm not sure what you're talking about, but I'll research it, thanks. Again, thank you all, it's great that there are people here willing to help (and so fast :D) -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15602#15602 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OSG and WPF Questions
Hi Again, Please check out osgActiveX. You'll see that viewer is capsulated as an MFC ActiveX control. Regards, Can 2009/7/29 Martin Fleck eladamri...@hotmail.com Hello everyone, thank you for your replies :) @Sergey: Thank you but I've tried exactly that, but the problem is that I want to integrate the window in the WPF-application and not open another window :( @Andrew: If I'm not wrong WPF uses only one HWND for the whole application. I guess that is where the problem lies, maybe I mix up my handlers. Anyway thank you for the code, maybe another way is to create a winforms-control and embed it into WPF (though it seems very strange OSG-Winforms-WPF). @Can: OK, I've never worked with ActiveX before so I'm not sure what you're talking about, but I'll research it, thanks. Again, thank you all, it's great that there are people here willing to help (and so fast :D) -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15602#15602 ___ 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] svn error during checkout
Hi Jose, Months? are you having problems with svn for months? Yes, in differing messages. That changes everything, I'm still having troubles to find out what could be happening, it's a weird error that could be from Apache, Apr, Subversion... and there is no much info in the logs. But I'm working on it. Since I resumed trying to update my local copy, (last successful build was Jan.29. I know it worked then.) I started taking notes on Jul.17 when running svn-1.4.6 and the error was different for the *update:* svn: REPORT request failed on '/svn/osg/!svn/vcc/default' svn: REPORT of '/svn/osg/!svn/vcc/default': Chunk delimiter was invalid (http:// www.openscenegraph.org) So I started trying a fresh *checkout* the next day, but that had this same error I am reporting. svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org Stewart ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] create a image
Rather I would do this :
const long size = width*height*3;
unsigned short* data = (unsigned short*)calloc(size, sizeof(unsigned
short));
for(long i=0; i size ; i+= 3)
{
data[i] = 65535;//red
data[i+1] = 0;//green
data[i+2] = 0;//blue
}
// image
osg::ref_ptrosg::Image image = new osg::Image;
image-allocateImage(width, height, 1, GL_RGB, GL_UNSIGNED_SHORT);
image-setOrigin(osg::Image::BOTTOM_LEFT);
image-setImage(width, height, 1, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT,
(unsigned char*)data, osg::Image::NO_DELETE);
osgDB::writeImageFile(*image, */home/*.../test.jpg);
Mourad
2009/7/29 Martin Großer grosser.mar...@gmx.de
Hello Mourad,
ok, I can change it to GL_UNSIGNED_SHORT and I can change the internal
pixel format to GL_RGB16, but the data value is a pointer to a unsigned
char. Unsigned char is also 8 bit and not 16 bit?
Here the changed version:
const long size = width*height*3;
unsigned char* data = (unsigned char*)calloc(size, sizeof(unsigned short));
for(long i=0; i size ; i+= 3)
{
data[i] = 65535;//red
data[i+1] = 0;//green
data[i+2] = 0;//blue
}
// image
osg::ref_ptrosg::Image image = new osg::Image;
image-allocateImage(width, height, 1, GL_RGB, GL_UNSIGNED_SHORT);
image-setOrigin(osg::Image::BOTTOM_LEFT);
image-setImage(width, height, 1, GL_RGB16, GL_RGB16, GL_UNSIGNED_SHORT,
data, osg::Image::NO_DELETE);
osgDB::writeImageFile(*image, */home/*.../test.jpg);
What type is possible for the data value? And what happens when I use
GL_FLOAT? There are 32 bits?
My main problem is, I don't understand the data value.
Cheers,
Martin
Am 29.07.2009 13:25, schrieb Mourad Boufarguine:
Martin,
And for the second question, yes, you can use 16 bits per channel.
GL_UNSIGNED_BYTE means 8 bits per channel, so GL_UNSIGNED_SHORT is for 16
bits.
Mourad
2009/7/29 Martin Großer grosser.mar...@gmx.de
Year! That is right. I feel awful about this mistake.
First I try GL_FLOAT and I forget to change the value from 1 to 255.
Thanks for your help.
Martin
Am 29.07.2009 11:39, schrieb David Spilling:
Martin,
I think you want this:
data[i] = 255;//red
David
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Re: [osg-users] svn error during checkout
Jose Luis Hidalgo wrote: Could you try again? I've changed some apache timeouts (there were too short), and now I can make checkouts with no dropped connections. It goes longer until the error, 45 seconds, 100 seconds the last time I stared at it counting... This time as I write this, it has gone, oops, there it stopped at about 3 minutes. svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Stewart ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] create a image
Hello,
I have make a new message, because I replied another message and it was
not so good. I hope this is ok.
Ok, back to my problem.
Mourad thanks for your help. I try it and it seems that I lose the half
image information. When I have a image 12 x 12 I get a image 6x6. I
think the problem is that the unsigned char* can only handle 8 bits.
Cheers,
Martin
Am 29.07.2009 15:58, schrieb Mourad Boufarguine:
Rather I would do this :
const long size = width*height*3;
unsigned short* data = (unsigned short*)calloc(size, sizeof(unsigned
short));
for(long i=0; i size ; i+= 3)
{
data[i] = 65535;//red
data[i+1] = 0;//green
data[i+2] = 0;//blue
}
// image
osg::ref_ptrosg::Image image = new osg::Image;
image-allocateImage(width, height, 1, GL_RGB, GL_UNSIGNED_SHORT);
image-setOrigin(osg::Image::BOTTOM_LEFT);
image-setImage(width, height, 1, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT,
(unsigned char*)data, osg::Image::NO_DELETE);
osgDB::writeImageFile(*image, //home//.../test.jpg);
Mourad
2009/7/29 Martin Großer grosser.mar...@gmx.de
mailto:grosser.mar...@gmx.de
Hello Mourad,
ok, I can change it to GL_UNSIGNED_SHORT and I can change the
internal pixel format to GL_RGB16, but the data value is a pointer
to a unsigned char. Unsigned char is also 8 bit and not 16 bit?
Here the changed version:
const long size = width*height*3;
unsigned char* data = (unsigned char*)calloc(size, sizeof(unsigned
short));
for(long i=0; i size ; i+= 3)
{
data[i] = 65535;//red
data[i+1] = 0;//green
data[i+2] = 0;//blue
}
// image
osg::ref_ptrosg::Image image = new osg::Image;
image-allocateImage(width, height, 1, GL_RGB, GL_UNSIGNED_SHORT);
image-setOrigin(osg::Image::BOTTOM_LEFT);
image-setImage(width, height, 1, GL_RGB16, GL_RGB16,
GL_UNSIGNED_SHORT, data, osg::Image::NO_DELETE);
osgDB::writeImageFile(*image, //home//.../test.jpg);
What type is possible for the data value? And what happens when I
use GL_FLOAT? There are 32 bits?
My main problem is, I don't understand the data value.
Cheers,
Martin
Am 29.07.2009 13:25, schrieb Mourad Boufarguine:
Martin,
And for the second question, yes, you can use 16 bits per
channel. GL_UNSIGNED_BYTE means 8 bits per channel, so
GL_UNSIGNED_SHORT is for 16 bits.
Mourad
2009/7/29 Martin Großer grosser.mar...@gmx.de
mailto:grosser.mar...@gmx.de
Year! That is right. I feel awful about this mistake.
First I try GL_FLOAT and I forget to change the value from 1
to 255.
Thanks for your help.
Martin
Am 29.07.2009 11:39, schrieb David Spilling:
Martin,
I think you want this:
data[i] = 255;//red
David
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Re: [osg-users] create a image
Martin Großer wrote: Hello, I have make a new message, because I replied another message and it was not so good. I hope this is ok. Ok, back to my problem. Mourad thanks for your help. I try it and it seems that I lose the half image information. When I have a image 12 x 12 I get a image 6x6. I think the problem is that the unsigned char* can only handle 8 bits. That's not the problem. If that were the problem, there would have to be a dozen or more versions of setImage() to handle all the different formats. Try changing your setImage() call to this: image-setImage(width, height, 1, GL_RGB16, GL_RGB, GL_UNSIGNED_SHORT, (unsigned char*)data, osg::Image::NO_DELETE); --J ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Simple way to determine if a point is inside a geometry
Hi there, Given a single object in my scene graph defined by the hierachy PositionAttitudeTransform (x1) | Geode (x1) | Geometry (x1) | Drawables (x Many) Is there a simple way to determine if a point location is inside the geometry, taking into account transforms applied by the PAT? I am reluctant to use the intersect visitor, as the scene is very cluttered and I will likely get lots of intersections, and this may be time-consuming to determine whether the intersection was with my geometry object. Any ideas? Thank you! Andrew -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15610#15610 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Deadlock when loading osg.dll, singletons are evil
Hi, We've encountered several times a random deadlock that would happen when starting our application. After some playing around, we've identified the problem to be quite a subtle one. Here is what's happening. When osg.dll (in our case the full name is osg59-osgd.dll) gets loaded, it initializes several singletons directly and indirectly. These initializations lead to a call to DisplaySettings::readEnvironmentalVariables(), which in turn calls getenv(). All would be fine if it weren't for two subtle details: 1. The singleton initializations are indirectly called from DllMain(). Unfortunately, DllMain() is fairly limited in what you can do in it. For example, calling synchronization primitives is usually a very bad idea. 2. getenv() calls a lock (a synchronization primitive) on the environment. The result of combining these two points is as given in the title of this post: a nice random deadlock. More about DllMain: http://msdn.microsoft.com/en-us/library/ms682583%28VS.85%29.aspx http://msdn.microsoft.com/en-us/library/aa290048%28VS.71%29.aspx#vcconmi xeddllloadingproblemanchor3 A few months ago, there was a heated discussion about singletons in OpenSceneGraph. Since then, this issue as well as others have now convinced me that singletons are not simply a bad practice, but are actually completely broken (i.e. they do not work). Singletons are generally considered to be an anti-pattern due to the hidden dependencies they introduce. Google is full of papers on this, and I can attest from our personal experience with OSG that this has been a problem on numerous occasions. For example, to improved resource usage, we have to keep the screengraph alive but destroy the OpenGL context when it's not being rendered. This proved to be an extremely difficult endeavour as we had to track all these hidden dependencies by trial and error, and manually reset them one by one. The aforementioned deadlock however leads me to the conclusion that singletons are not just an anti-pattern but are completely broken. Because of the DllMain() limitations, any C/C++ standard function is potentially unsafe. Therefore, any singleton using a C/C++ standard function is itself potentially unsafe if used in a DLL. All it takes is for one of these standard functions implementation to call a synchronization primitive that is illegal in DllMain(). Regards, Tanguy ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [vpb] Can I use VPB/OSG to smooth the edges of different res images??
Colin Knowles wrote: Hi, I have a large hi res globe which I've built showing 250 odd kms of river with 30cm resolution terrain and 20cm imagery - I've been asked to mod the texture so that it shows an increase in the level of the river. For small areas I typically create a contour polygon at the new water elevation and use that as a line which is baked onto the image in a 3rd party software package , this is then used in photoshop as a reference line which I can create a false texture fill inside. This process works great for small areas , unfortunately for 80 gigs of imagery I cannot manually go through each tile and photoshop a new texture for the river edge in the time allowed. I can create a georeferenced image of the new river on it's own at a higher resolution than the base image and build the globe - but then I end up with a hard edge between the base image and the new river texture - is it possible to use the osg to feather the edge of the higher res image into the existing image so that there is a smoothed edge?? I can post up some images to give you an idea of what I'm getting at if this helps. I don't believe you can do this with current VPB. It's something you could do in my Visual Nature Studio software ( http://3dnature.com/vnsinfo.html ), but even there, 80gigs is too large for VNS to process. Cheers, Colin www.k2vi.com -- Chris 'Xenon' Hanson, omo sanza lettere Xenon AlphaPixel.com PixelSense Landsat processing now available! http://www.alphapixel.com/demos/ There is no Truth. There is only Perception. To Perceive is to Exist. - Xen ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Deadlock when loading osg.dll, singletons are evil
Hi Tanguy, We've encountered several times a random deadlock that would happen when starting our application. After some playing around, we've identified the problem to be quite a subtle one. What you're describing makes sense in some way, but I have two questions: 1. Why have there not been more discussions about random deadlocks in the recent past? For example, we have not experienced anything resembling what you describe. I am not an expert in Win32 programming, so what you describe may well be true, but we haven't encountered this, and I'm pretty sure if it were such a widespread problem we'd have heard of it on this list before. Of course, that's not proof in itself that the issue is not there, but it's an indication that it might be something on your side rather than a widespread problem. 2. If singletons are bad practice as you say, what do you propose to replace them? I'm always a bit skeptical of sentences like Google is full of papers [saying that singletons are broken]. People have a tendency to be extreme in their judgements, and if someone finds an instance where singletons give bad results, they will often start saying that they are bad in all cases (and inevitably post to their blog about it). It's a tool for a job, and the developer has to know when to use it and when not to. That's the developer's responsibility, not the tool's. I'm not saying that all uses of singletons in OSG are good ones (most obviously because I've probably not personally seen all of them) but singletons are useful (they give a single point of access to something - data, functionality) and that has to be replaced by something else if singletons have a downside in some/most/all(?) situations. J-S -- __ Jean-Sebastien Guayjean-sebastien.g...@cm-labs.com http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] svn error during checkout
Could you try again? I've changed some apache timeouts (there were too short), and now I can make checkouts with no dropped connections. It goes longer until the error, 45 seconds, 100 seconds the last time I stared at it counting... This time as I write this, it has gone, oops, there it stopped at about 3 minutes. Hi, I have reached an impasse. Perhaps the file next in line, is larger than the time it takes to error? I can go no farther. 52 of 77Mb retrieved. (or it Was 77Mb in January) It gets data for a variable length of time, usually has a 10 second break of inactivity, gets more data, then crashes. The times below are not perfect, depending on how long it takes me to notice it stopped. (usually about 10 seconds) Jul-29 7:43:06 [1[pts/7:21]sandreas /1src/SVN svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph AOpenSceneGraph/src/osgTerrain/GeometryTechnique.cpp AOpenSceneGraph/src/osgTerrain/TerrainTile.cpp AOpenSceneGraph/src/osgTerrain/Locator.cpp AOpenSceneGraph/src/osgTerrain/Terrain.cpp AOpenSceneGraph/src/osgTerrain/Version.cpp AOpenSceneGraph/src/osgTerrain/TerrainTechnique.cpp AOpenSceneGraph/src/osgTerrain/CMakeLists.txt AOpenSceneGraph/src/osgTerrain/Layer.cpp AOpenSceneGraph/src/CMakeLists.txt AOpenSceneGraph/CTestConfig.cmake svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 7:44:08 [1[pts/7:22]sandreas /usr/src/SVN svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 7:45:09 [1[pts/7:23]sandreas /usr/src/SVN svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 7:47:41 [1[pts/7:24]sandreas /usr/src/SVN svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 7:48:40 [1[pts/7:25]sandreas /usr/src/SVN svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 7:50:22 [1[pts/7:26]sandreas /usr/src/SVN svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 7:51:30 [1[pts/7:27]sandreas /usr/src/SVN Also, I noticed apr-util depended on db-4.0, but subversion wasn't happy with that, so I upgraded to db-4.7 and apr-1.3.7 which removed a couple warnings. Alas, still same error. svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 10:18:18 [1[pts/6:69]sandreas /usr/src/SVN Stewart ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Deadlock when loading osg.dll, singletons are evil
Hi J-S, Your questions are quite legitimate. I'll try to answer them to my best knowledge. 1. The DllMain problem is quite well documented (cf. the MSDN links from my previous post). The thing is that an illegal use of DllMain is quite similar to a race condition. Most of the time, everything just seems to work. Our application has already about 10 threads up and running before osg.dll is being loaded, significantly increasing the chance of a deadlock. I would expect most OSG-based applications to do just fine as they start using OSG (and therefore osg.dll) when still single threaded. Because our application is quite multithreaded, it's not the first time we've uncovered thread-safety bugs in what are supposed to be quite stable libraries. Recently, we've just found a couple of thread-safety issues with LibCurl and OpenSSL (their developers have accepted these as genuine defects and are fixing these issues). Google found a few (not many) posts related to these issues, but due to the lack of proper investigations they often got dismissed. 2. Just going to http://en.wikipedia.org/wiki/Singleton_pattern you'll see that the first paragraph has already 6 anti-singleton references. A few other references I have at hand include: http://accu.org/index.php/journals/337 http://code.google.com/p/google-singleton-detector/wiki/WhySingletonsAreControversial http://blogs.msdn.com/scottdensmore/archive/2004/05/25/140827.aspx How can you replace singletons? If one still insists on using singletons, the first thing one can do to alleviate the problem is to provide init/destroy functions (note that they have to be thread-safe, re-entrant, and should be able to cope with multiple initializations). For example: initOsg() and destroyOsg() (or better: an object that calls init in its constructor and destroy in its destructor). These two functions control the lifetime of the whole library. This is a common approach, and for good reasons. Because you give the user control on the lifetime of the library, it effectively resolves the DllMain problem. A better way is not to use singletons at all. Just provide explicitly exposed objects and classes. The benefit is that you get rid of any hidden dependency. It also gives even more control to the user as far as the objects (and thus the library) lifetime is concerned. A lot of people (myself included) find singletons convenient because they do hide implicit dependency, which results in less code to be written. Unfortunately, I'm starting to think that it's a bad decision in most (all?) cases, especially in a library that is going to be used by others. As they force the user to give up lifetime control and dependency control, singletons just don't go well with some of C++ most common idioms (e.g. RAII). Furthermore, singletons tend to be a fuzzy concept. It states that you have a single instance of an object, but it does not state per what. With a naive static Object approach, you can end up having several singletons per thread (e.g. thread local storage), several singletons per process (one per DLL/EXE), and of course several singletons per applications (if there are several processes). Stretch it even more and imagine you're working on a distributed system. It's not uncommon to have several singletons when you're only supposed to have one (and it's very easy to fail to see this). Cheers, Tanguy -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Jean-Sébastien Guay Sent: 29 July 2009 17:28 To: OpenSceneGraph Users Subject: Re: [osg-users] Deadlock when loading osg.dll, singletons are evil Hi Tanguy, We've encountered several times a random deadlock that would happen when starting our application. After some playing around, we've identified the problem to be quite a subtle one. What you're describing makes sense in some way, but I have two questions: 1. Why have there not been more discussions about random deadlocks in the recent past? For example, we have not experienced anything resembling what you describe. I am not an expert in Win32 programming, so what you describe may well be true, but we haven't encountered this, and I'm pretty sure if it were such a widespread problem we'd have heard of it on this list before. Of course, that's not proof in itself that the issue is not there, but it's an indication that it might be something on your side rather than a widespread problem. 2. If singletons are bad practice as you say, what do you propose to replace them? I'm always a bit skeptical of sentences like Google is full of papers [saying that singletons are broken]. People have a tendency to be extreme in their judgements, and if someone finds an instance where singletons give bad results, they will often start saying that they are bad in all cases (and inevitably post to their blog about it). It's a tool for a job, and the
Re: [osg-users] [vpb] Can I use VPB/OSG to smooth the edges of different res images??
Hi Chris, Thanks for the offer , currently I use global mapper to crunch raster everything - and love it. But I dont have the $$ right now to buy the latest 64 bit version they have released (spent a small fortune on a new I7 to build globes quickly instead) I'll keep hunting around. Cheers, Colin www.k2vi.com -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15617#15617 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Simple way to determine if a point is inside a geometry
One way might be something along the lines of 1) use the boudingspehere of PAT to see if you point is with in the bounding sphere if its not then stop/bail ( you will have to transform the sphere by the pat transforms etc) 2) Iterate over each drawables boundling box ( transfromed by applying the Pat matrix ) and test the to see, if the point is inside the bounding box, do what you need to do 3) get to this point , your not inside so bail You could also trnasform the point into the PATs reference frame as well There are helper functions/methods for these tests etc. Gordon Product Manager 3d __ Gordon Tomlinson Email : gtomlinson @ overwatch.textron.com __ -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Andrew Thompson Sent: Wednesday, July 29, 2009 11:54 AM To: osg-users@lists.openscenegraph.org Subject: [osg-users] Simple way to determine if a point is inside a geometry Hi there, Given a single object in my scene graph defined by the hierachy PositionAttitudeTransform (x1) | Geode (x1) | Geometry (x1) | Drawables (x Many) Is there a simple way to determine if a point location is inside the geometry, taking into account transforms applied by the PAT? I am reluctant to use the intersect visitor, as the scene is very cluttered and I will likely get lots of intersections, and this may be time-consuming to determine whether the intersection was with my geometry object. Any ideas? Thank you! Andrew -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15610#15610 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Deadlock when loading osg.dll, singletons are evil
Tanguy Fautre wrote on Wednesday, July 29, 2009 12:37 PM: The DllMain problem is quite well documented (cf. the MSDN links from my previous post). The thing is that an illegal use of DllMain is quite similar to a race condition. Most of the time, everything just seems to work. Our application has already about 10 threads up and running before osg.dll is being loaded, significantly increasing the chance of a deadlock. I would expect most OSG-based applications to do just fine as they start using OSG (and therefore osg.dll) when still single threaded. Because our application is quite multithreaded, it's not the first time we've uncovered thread-safety bugs in what are supposed to be quite stable libraries. Recently, we've just found a couple of thread-safety issues with LibCurl and OpenSSL (their developers have accepted these as genuine defects and are fixing these issues). Google found a few (not many) posts related to these issues, but due to the lack of proper investigations they often got dismissed. The links you posted explicitly said that creating synchronization primitives is allowed in DllMain; the problem is acquiring them when other threads are trying to acquire the loader lock (to enter some DllMain function). Are you saying that the problem is the mutex used in creating the singletons, or is there some other limitation of DllMain that you think OSG is violating? A simple test case demonstrating the problem you're describing would be helpful, I think. -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Jean-Sébastien Guay Sent: 29 July 2009 17:28 To: OpenSceneGraph Users Subject: Re: [osg-users] Deadlock when loading osg.dll, singletons are evil Hi Tanguy, We've encountered several times a random deadlock that would happen when starting our application. After some playing around, we've identified the problem to be quite a subtle one. What you're describing makes sense in some way, but I have two questions: 1. Why have there not been more discussions about random deadlocks in the recent past? For example, we have not experienced anything resembling what you describe. I am not an expert in Win32 programming, so what you describe may well be true, but we haven't encountered this, and I'm pretty sure if it were such a widespread problem we'd have heard of it on this list before. Of course, that's not proof in itself that the issue is not there, but it's an indication that it might be something on your side rather than a widespread problem. 2. If singletons are bad practice as you say, what do you propose to replace them? I'm always a bit skeptical of sentences like Google is full of papers [saying that singletons are broken]. People have a tendency to be extreme in their judgements, and if someone finds an instance where singletons give bad results, they will often start saying that they are bad in all cases (and inevitably post to their blog about it). It's a tool for a job, and the developer has to know when to use it and when not to. That's the developer's responsibility, not the tool's. I'm not saying that all uses of singletons in OSG are good ones (most obviously because I've probably not personally seen all of them) but singletons are useful (they give a single point of access to something - data, functionality) and that has to be replaced by something else if singletons have a downside in some/most/all(?) situations. J-S -- Bryan Thrall FlightSafety International bryan.thr...@flightsafety.com ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] A noob question: Can OSG do this?
Hello, I've made an OpenGL application of considerable size and now I am exploring possibilities to display its results on a stereoscopic wall. Particularly, I will be let to try this on a VR system that is in possession of Technical University Sofia, in Bulgaria. As the machine they use a cluster, where the master PC is connected to two rendering slaves. Slaves project the stereoscopic image to the wall with two beamers. Right now I cannot say more about this cluster, but I hope you could still tell me if it should be possible to control this cluster through OSG. I would also appreciate tips on how to get started, since I have no previous experience with OSG. :) Today I had look at few pieces of code. Thank you in advance for taking interest in this topic. :) ++ -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15611#15611 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] Collada plugin texture problem
Hello, I am having a similar problem of the textures not appearing when I upgraded to osg 2.8.2. I tried looking at the files but I was unable to find the line you said to modify. I used the Collada Next Gen exporter in 3D Studio Max 2008 to export my models. The specific line I get when loading the models into my scene is Failed to find matching bind_vertex_input for CHANNEL1 Thanks for your help, Michele -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15620#15620 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Draw time vs. GPU time Stats question
Is it fair to say that the Draw time in the OSG stats measures the time needed to sort and call the display lists of the Geometry nodes obtained by the Cull stage and make the other frame rendering related OpenGL calls? And GPU time is the time that the GPU spends rendering the geometry (vertices, textures, etc)? Thanks. Alex ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] A noob question: Can OSG do this?
Michael Angelkovich wrote: Hello, I've made an OpenGL application of considerable size and now I am exploring possibilities to display its results on a stereoscopic wall. Particularly, I will be let to try this on a VR system that is in possession of Technical University Sofia, in Bulgaria. As the machine they use a cluster, where the master PC is connected to two rendering slaves. Slaves project the stereoscopic image to the wall with two beamers. Right now I cannot say more about this cluster, but I hope you could still tell me if it should be possible to control this cluster through OSG. I would also appreciate tips on how to get started, since I have no previous experience with OSG. :) Today I had look at few pieces of code. Thank you in advance for taking interest in this topic. :) Hi, Michael, OSG has certainly been used for cluster rendering, but it doesn't have any specific features explicitly designed for cluster rendering. Take a look at the osgcluster example to get an idea of how you might approach it. The other thing you mentioned is that you already have a sizable OpenGL application that you want to run on the cluster. OSG is a scene graph API that sits on top of OpenGL and uses it to do its rendering. This means you'll have to port your application to use OSG. Porting from straight OpenGL to OSG is certainly possible, but it'll take some work. --J ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] svn error during checkout
Hi, Just out of curiosity, have you tried another SVN client... ?I will try to look futher on the timeout thing that looks like the one to blame... but tomorrow. JL. On Wed, Jul 29, 2009 at 7:29 PM, S Andreasonsandrea...@gmail.com wrote: Could you try again? I've changed some apache timeouts (there were too short), and now I can make checkouts with no dropped connections. It goes longer until the error, 45 seconds, 100 seconds the last time I stared at it counting... This time as I write this, it has gone, oops, there it stopped at about 3 minutes. Hi, I have reached an impasse. Perhaps the file next in line, is larger than the time it takes to error? I can go no farther. 52 of 77Mb retrieved. (or it Was 77Mb in January) It gets data for a variable length of time, usually has a 10 second break of inactivity, gets more data, then crashes. The times below are not perfect, depending on how long it takes me to notice it stopped. (usually about 10 seconds) Jul-29 7:43:06 [1[pts/7:21]sandreas /1src/SVN svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph A OpenSceneGraph/src/osgTerrain/GeometryTechnique.cpp A OpenSceneGraph/src/osgTerrain/TerrainTile.cpp A OpenSceneGraph/src/osgTerrain/Locator.cpp A OpenSceneGraph/src/osgTerrain/Terrain.cpp A OpenSceneGraph/src/osgTerrain/Version.cpp A OpenSceneGraph/src/osgTerrain/TerrainTechnique.cpp A OpenSceneGraph/src/osgTerrain/CMakeLists.txt A OpenSceneGraph/src/osgTerrain/Layer.cpp A OpenSceneGraph/src/CMakeLists.txt A OpenSceneGraph/CTestConfig.cmake svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 7:44:08 [1[pts/7:22]sandreas /usr/src/SVN svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 7:45:09 [1[pts/7:23]sandreas /usr/src/SVN svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 7:47:41 [1[pts/7:24]sandreas /usr/src/SVN svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 7:48:40 [1[pts/7:25]sandreas /usr/src/SVN svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 7:50:22 [1[pts/7:26]sandreas /usr/src/SVN svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 7:51:30 [1[pts/7:27]sandreas /usr/src/SVN Also, I noticed apr-util depended on db-4.0, but subversion wasn't happy with that, so I upgraded to db-4.7 and apr-1.3.7 which removed a couple warnings. Alas, still same error. svn checkout http://www.openscenegraph.org/svn/osg/OpenSceneGraph/trunk OpenSceneGraph svn: REPORT of '/svn/osg/!svn/vcc/default': Could not read response body: connection was closed by server. (http://www.openscenegraph.org) Jul-29 10:18:18 [1[pts/6:69]sandreas /usr/src/SVN Stewart ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Jose L. Hidalgo Valiño (PpluX) http://www.pplux.com ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] OSG and WPF Questions
Hi Martin. but the problem is that I want to integrate the window in the WPF-application and not open another window :( take a closer look at OpenGLUserControl.h - it is a control with HWND for WPF. Regards Sergey ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
