[osg-users] about DelaunayTriangulator problem!
hi everyone !
I am a new one here! I have a problem ablut t DelaunayTriangulator!could
anyone give me some advice!
my platform is Visual Studio 2008 and OSG 2.6.
The problem is that I find some warning when I test a application about
DelaunayTriangulator！
/***
int main(){ osgViewer::Viewer* viewer = new osgViewer::Viewer();
viewer->addEventHandler( new
osgGA::StateSetManipulator(viewer->getCamera()->getOrCreateStateSet()) );
osg::Group* root = new osg::Group();osg::Vec3Array* coords = new
osg::Vec3Array(); unsigned int n = sizeof(vertex)/sizeof(float[3]); for(
unsigned int i = 0; i push_back(
osg::Vec3(vertex[i][0], vertex[i][1], vertex[i][2] )); }
osgUtil::DelaunayTriangulator* dt = new osgUtil::DelaunayTriangulator(coords);
dt->triangulate(); osg::Geometry* geometry = new osg::Geometry();
geometry->setVertexArray(coords);
geometry->addPrimitiveSet(dt->getTriangles()); osg::Geode* geode = new
osg::Geode(); geode->addDrawable( geometry); root->addChild(geode) ;
osgUtil::Optimizer optimizer ; optimizer.optimize(root) ;
viewer->setSceneData(root); viewer->realize(); viewer->run(); return
0 ;}
/
And the warning: DelaunayTriangulator::triangulate(): too few sample points!
warning: invalid index i or primitiveset passed to
osg::Geometry::addPrimitiveSet, ignoring call!___
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Re: [osg-users] osg-users Digest, Vol 22, Issue 53
Hi list, @Jan Ciger: > Regarding multiple licenses - you will still have them, due to the OSG > dependencies (zlib license, JPEG library license, ...) Yes, but I'm not the one that maintains OSG's dependencies. > However, a much nicer approach would be to contribute the changes you > want to make back to OSG instead of locking them away under GPL. I have no problem with my changes being incorporated back into OSG; but about the only changes that I think that would be desirable in OSG is to allow cel shading to take a different texture unit than 0, to separate cel shading from outlining, and not requiring a diffuse texture for bump mapping. If I made any actual improvements, I would gladly backport them. However, you did made me realize something. While I still don't know if the OSGPL allows to port to the GPL, there is after all one benefit to using the OSGPL instead of the GPL: that *I* would backport my changes and release them under the OSGPL, doesn't means that *anyone* that I convey the program to, will be willing to allow their changes to be released under the OSGPL. - Coz ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] DelaunayTriangulator and multiple drawables
I was doing something different with the triangulator, but noticed similar problems. I ended up using GTS. If you're doing anything more than a handful of points, it's isn't really built for that. -Steve Gifford On Fri, Apr 17, 2009 at 8:18 AM, Martin Beckett wrote: > I am playing with the DelaunayTriangulator trying to mesh a surface. > > The advice on writing the file reader was to split the points into blocks of > 10,000 and generate multiple drawables in each geometry. > Now when I come to triangulate it each block of points is going to mesh > individually. The triangles are indices into the vertices and so can't cross > nodes. > > Should I copy all the vertices into a single drawable, but set them not to be > drawn, and mesh those. But then I loose the link between the mesh and the > original data which makes picking complicated > > Any ideas ? > > Martin > > ps. The surface produced by DelaunayTriangulator has problems (modifying the > source points, long thin triangles, intersecting triangles etc) so i am > looking at some alternate routines - but the above problem would apply to any > of them. > > -- > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=10346#10346 > > > > > > ___ > 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] FOG: applying both kinds at the same time. How?
Thx everyone! I've got my stuff working now and I'm glad that I can only have 1 type of fog active. It makes my job easier. Allen -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=10356#10356 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] OSG wiki database locked
There seems to be a problem with the Wiki: > Trac detected an internal error: > > OperationalError: database is locked -- Roland -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=10355#10355 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Changing OSG License to GPL
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello Eduardo, Eduardo Alberto Hernández Muñoz wrote: >> So why should OSG derived code be GPL ed? > Because I want to reduce the overhead of maintaining the code. I > already have the GPLv3 for code, Creative Commons for the media, the > SIL font license for fonts, and probably something else will pop it's > head. I don't want to have multiple licenses for the same kind of > data. The OSG license should not cause you any headaches, because it is compatible with GPL. You do not need to treat it in any special way compared to your GPLv3 code. Regarding multiple licenses - you will still have them, due to the OSG dependencies (zlib license, JPEG library license, ...) > Even though my reason to GPL the code is to lower the effort required, > I do want to clear that it is not my desire that my program is used in > closed-source projects unless I'm asked for permission. It cannot be - if your own code is GPLed, then the license does not allow it already and your are covered. And the 3rdparty code that you are not the copyright holder of (OSG) is none of your business, to put it bluntly. If you want to create a derivative work of the 3rdparty code - - e.g. to take a piece of OSG, modify it and release under a different license, you need the right holder's permission, as you have correctly identified yourself. However, a much nicer approach would be to contribute the changes you want to make back to OSG instead of locking them away under GPL. While it is better than making them outright proprietary, it still does not allow use of that library code in many cases - e.g. many universities do not have problems to release code as open source, however they often want their own licenses with various restrictions that may or may not be GPL-compatible (original BSD license is a great example). For example, for me is a GPL-ed library a potential liability of wasting my time, because I could be prevented from distributing my own research code due to the GPL-incompatible opinion of university legal department. Considering the benefit you have from using OSG, I do not think that asking for a bit of payback is so outlandish. Nobody can force you to do this, but please, do consider this option. Regards, Jan -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mandriva - http://enigmail.mozdev.org iD8DBQFJ6MGWn11XseNj94gRAhC7AKDp+ncZo05GFPMUkW6jaXsrRietrgCff66T tgQD+Fb5lhvZboeL4jD+GMQ= =P/9I -END PGP SIGNATURE- ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Changing OSG License to GPL
Hi list, @Sergey Kurdakov: > sorry but it is really not clear why LGPL prohibits you to The LGPL itself does not prohibits me to use the GPL, in fact, it explicitly permits it. However, the page http://www.openscenegraph.org/projects/osg/wiki/Legal, probably written by Robert( it's down now, so I can't verify ), forbids releasing under *any* other license. I'm not a lawyer, but I'm sure that it could be claimed that the LGPL text refered only to itself and not the OSGPL, and I'm not sure Robert will be too happy with people taking OSG code and GPL'ing it. > So why should OSG derived code be GPL ed? Because I want to reduce the overhead of maintaining the code. I already have the GPLv3 for code, Creative Commons for the media, the SIL font license for fonts, and probably something else will pop it's head. I don't want to have multiple licenses for the same kind of data. @Xenon: > What exactly, is your goal in putting it under the GPL? The OSGPL is > designed so that OSG can be used equally with F/OSS and closed-source > projects. Your change would reduce that flexibility, so the question is -- > why is this a goal of yours? Even though my reason to GPL the code is to lower the effort required, I do want to clear that it is not my desire that my program is used in closed-source projects unless I'm asked for permission. Unlike OSG, my program is not meant to be used as a library( right now the goal is make a game, though it might be split into an engine and game logic in the future ). Including OSGPL'ed code won't allow my program to be used in closed-source projects, since the rest of the code is under the GPLv3. - Coz ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Using osgWidget for the first time, some questions
Hello Cedric, Maybe look at osgwidgetmessagebox example, if i remember it does what you want. That showed me how to make the center widget auto-resize, yes. Thanks. What about the other questions? (the color of the center widget not using the alpha, and the alignment of widgets to the top of the frame) Thanks a lot, 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] terrain database popping...
Hi Stefan, I played with libmini some time ago. I didn't studied the code deeply, but I think some things are already in OSG, like the viewer. I don't have too much time right now, but with the proper insight, I may try to do it. Regards, -- A. On Thu, Apr 16, 2009 at 4:32 AM, Stefan Roettger wrote: > On Apr 15, 2009, at 11:44 PM, Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC > wrote: > >> I think it would be good to fold libmini (or something equivalent) into >> OSG. >> That way you can use the databases built with VPB. I don't know much about >> VTP but using VPB databases are nice... > > Yes. I have been thinking for almost 2 years now about folding libMini into > OSG, but so far did not have the necessary time to do it. So it got delayed > and delayed... If someone is volunteering though, I'd be happy to give the > necessary insight into libMini. > > Cheers, > Stefan > > ___ > 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] Using osgWidget for the first time, some questions
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hi Sebastien,
Maybe look at osgwidgetmessagebox example, if i remember it does what
you want.
Cedric
Jean-Sébastien Guay wrote:
> Hello all, hello Jeremy,
>
> I'm using osgWidget for the first time, thinking of using it for a
> little addition I'm planning for OSG eventually, and just trying to
> get familiar with it. I have a few questions.
>
> First, here's my code:
>
> const unsigned int MASK_2D = 0xF000;
>
> // To be able to pass an osg::Vec4 to a
> // setColor(float, float, float, float) method
> #define mySetColor(obj, c) (obj->setColor(c.r(), c.g(), c.b(), c.a()))
>
> DebugHUD::DebugHUD(osgViewer::View* view)
> {
> osg::Vec4 titleBarColor(0, 0, 0.5, 0.5);
> osg::Vec4 backgroundColor(0.2, 0.2, 0.7, 0.5);
>
> osgWidget::point_type w =
> view->getCamera()->getViewport()->width();
> osgWidget::point_type h =
> view->getCamera()->getViewport()->height();
>
> m_windowManager = new osgWidget::WindowManager(view, w, h,
> MASK_2D);
>
> osgWidget::Frame* frame =
> osgWidget::Frame::createSimpleFrameFromTheme(
> "frameTheme",
> osgDB::readImageFile("osgWidget/theme-1.png"),
> 300.0f,
> 300.0f,
> osgWidget::Frame::FRAME_ALL
> );
> frame->setPosition(300,100,0);
>
> osgWidget::Table* table = new osgWidget::Table("table", 1, 1);
> osgWidget::Widget* center = new osgWidget::Widget("center",
> 300.0f, 300.0f);
> mySetColor(center, backgroundColor);
> center->setAlignVertical(osgWidget::Widget::VA_TOP);//
> Doesn't work
> table->addWidget(center, 0, 0);
> frame->setWindow(table);
>
> mySetColor(frame->getBackground(), osg::Vec4(1.0, 1.0, 1.0, 0.0));
>
> mySetColor(frame->getBorder(osgWidget::Frame::BORDER_TOP),
> titleBarColor);
>
> mySetColor(frame->getCorner(osgWidget::Frame::CORNER_UPPER_LEFT),
> titleBarColor);
>
> mySetColor(frame->getCorner(osgWidget::Frame::CORNER_UPPER_RIGHT),
> titleBarColor);
>
> mySetColor(frame->getBorder(osgWidget::Frame::BORDER_LEFT),
> backgroundColor);
> mySetColor(frame->getBorder(osgWidget::Frame::BORDER_RIGHT),
> backgroundColor);
> mySetColor(frame->getBorder(osgWidget::Frame::BORDER_BOTTOM),
> backgroundColor);
>
> mySetColor(frame->getCorner(osgWidget::Frame::CORNER_LOWER_LEFT),
> backgroundColor);
>
> mySetColor(frame->getCorner(osgWidget::Frame::CORNER_LOWER_RIGHT),
> backgroundColor);
>
> m_windowManager->addChild(frame);
>
> m_camera = m_windowManager->createParentOrthoCamera();
> m_windowManager->resizeAllWindows();
>
> view->getCamera()->addChild(m_camera.get());
> view->addEventHandler(new
> osgWidget::MouseHandler(m_windowManager.get()));
> view->addEventHandler(new
> osgWidget::KeyboardHandler(m_windowManager.get()));
> view->addEventHandler(new
> osgWidget::ResizeHandler(m_windowManager.get(), m_camera.get()));
> view->addEventHandler(new
> osgWidget::CameraSwitchHandler(m_windowManager.get(), m_camera.get()));
> }
>
> So, here are my questions.
>
> 1. The widget in the center is not the color I set it to. The alpha
> doesn't seem to be taken into account. I'd like my whole window to
> be a transparent blue (backgroundColor).
> 2. When I resize the frame to make it larger (dragging the
> bottom-right corner down and to the right for example), I'd like the
> widget in the center to resize itself to fit. Is that possible?
> Well, in fact if I could do without that widget it would be even
> better, but I want the center of the window to be transparent blue,
> and getBackground()->setColor() makes the color visible even on the
> corners of the window, which I don't want...
> 3. I want the widgets in my frame to stay at the top of the frame
> when it's resized. But even if I set my widget's vertical alignment
> to VA_TOP, it doesn't work (see the line with the "Doesn't work"
> comment above). Is that a bug or should I do something else to get
> what I want?
>
> BTW, to set the vertical alignment I would have expected to call
> setVerticalAlignment instead of setAlignVertical, any reason why
> it's named that way? setVerticalAlignment seems more natural.
>
> Other than that, it seems that osgWidget will allow me to do what I
> want and I'm enjoying working with it (though I'm only doing basic
> things right now...).
>
> Thanks in advance,
>
> J-S
- --
+33 (0) 6 63 20 03 56 Cedric Pinson mailto:morni...@plopbyte.net
http://www.plopbyte.net
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[osg-users] DelaunayTriangulator and multiple drawables
I am playing with the DelaunayTriangulator trying to mesh a surface. The advice on writing the file reader was to split the points into blocks of 10,000 and generate multiple drawables in each geometry. Now when I come to triangulate it each block of points is going to mesh individually. The triangles are indices into the vertices and so can't cross nodes. Should I copy all the vertices into a single drawable, but set them not to be drawn, and mesh those. But then I loose the link between the mesh and the original data which makes picking complicated Any ideas ? Martin ps. The surface produced by DelaunayTriangulator has problems (modifying the source points, long thin triangles, intersecting triangles etc) so i am looking at some alternate routines - but the above problem would apply to any of them. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=10346#10346 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Using osgWidget for the first time, some questions
Hello all, hello Jeremy,
I'm using osgWidget for the first time, thinking of using it for a
little addition I'm planning for OSG eventually, and just trying to get
familiar with it. I have a few questions.
First, here's my code:
const unsigned int MASK_2D = 0xF000;
// To be able to pass an osg::Vec4 to a
// setColor(float, float, float, float) method
#define mySetColor(obj, c) (obj->setColor(c.r(), c.g(), c.b(), c.a()))
DebugHUD::DebugHUD(osgViewer::View* view)
{
osg::Vec4 titleBarColor(0, 0, 0.5, 0.5);
osg::Vec4 backgroundColor(0.2, 0.2, 0.7, 0.5);
osgWidget::point_type w = view->getCamera()->getViewport()->width();
osgWidget::point_type h = view->getCamera()->getViewport()->height();
m_windowManager = new osgWidget::WindowManager(view, w, h, MASK_2D);
osgWidget::Frame* frame = osgWidget::Frame::createSimpleFrameFromTheme(
"frameTheme",
osgDB::readImageFile("osgWidget/theme-1.png"),
300.0f,
300.0f,
osgWidget::Frame::FRAME_ALL
);
frame->setPosition(300,100,0);
osgWidget::Table* table = new osgWidget::Table("table", 1, 1);
osgWidget::Widget* center = new osgWidget::Widget("center", 300.0f,
300.0f);
mySetColor(center, backgroundColor);
center->setAlignVertical(osgWidget::Widget::VA_TOP);// Doesn't work
table->addWidget(center, 0, 0);
frame->setWindow(table);
mySetColor(frame->getBackground(), osg::Vec4(1.0, 1.0, 1.0, 0.0));
mySetColor(frame->getBorder(osgWidget::Frame::BORDER_TOP),
titleBarColor);
mySetColor(frame->getCorner(osgWidget::Frame::CORNER_UPPER_LEFT),
titleBarColor);
mySetColor(frame->getCorner(osgWidget::Frame::CORNER_UPPER_RIGHT),
titleBarColor);
mySetColor(frame->getBorder(osgWidget::Frame::BORDER_LEFT),
backgroundColor);
mySetColor(frame->getBorder(osgWidget::Frame::BORDER_RIGHT),
backgroundColor);
mySetColor(frame->getBorder(osgWidget::Frame::BORDER_BOTTOM),
backgroundColor);
mySetColor(frame->getCorner(osgWidget::Frame::CORNER_LOWER_LEFT),
backgroundColor);
mySetColor(frame->getCorner(osgWidget::Frame::CORNER_LOWER_RIGHT),
backgroundColor);
m_windowManager->addChild(frame);
m_camera = m_windowManager->createParentOrthoCamera();
m_windowManager->resizeAllWindows();
view->getCamera()->addChild(m_camera.get());
view->addEventHandler(new
osgWidget::MouseHandler(m_windowManager.get()));
view->addEventHandler(new
osgWidget::KeyboardHandler(m_windowManager.get()));
view->addEventHandler(new
osgWidget::ResizeHandler(m_windowManager.get(), m_camera.get()));
view->addEventHandler(new
osgWidget::CameraSwitchHandler(m_windowManager.get(), m_camera.get()));
}
So, here are my questions.
1. The widget in the center is not the color I set it to. The alpha
doesn't seem to be taken into account. I'd like my whole window to be a
transparent blue (backgroundColor).
2. When I resize the frame to make it larger (dragging the bottom-right
corner down and to the right for example), I'd like the widget in the
center to resize itself to fit. Is that possible? Well, in fact if I
could do without that widget it would be even better, but I want the
center of the window to be transparent blue, and
getBackground()->setColor() makes the color visible even on the corners
of the window, which I don't want...
3. I want the widgets in my frame to stay at the top of the frame when
it's resized. But even if I set my widget's vertical alignment to
VA_TOP, it doesn't work (see the line with the "Doesn't work" comment
above). Is that a bug or should I do something else to get what I want?
BTW, to set the vertical alignment I would have expected to call
setVerticalAlignment instead of setAlignVertical, any reason why it's
named that way? setVerticalAlignment seems more natural.
Other than that, it seems that osgWidget will allow me to do what I want
and I'm enjoying working with it (though I'm only doing basic things
right now...).
Thanks in advance,
J-S
--
__
Jean-Sebastien Guayjean-sebastien.g...@cm-labs.com
http://www.cm-labs.com/
http://whitestar02.webhop.org/
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Re: [osg-users] Fullscreen with diferent resolutions
Be aware that you'll need to manually restore the screen resolution before
exiting your application or you'll find your desktop in 640x480...
On Fri, Apr 17, 2009 at 4:24 PM, Stephan Maximilian Huber <
ratzf...@digitalmind.de> wrote:
> Hi Carlos,
>
> Carlos Sanches schrieb:
> > I m looking for some example of
> > osg::GraphicsContext::WindowingSystemInterface .
> > Do you know where I found some example of how to use it ?
> Afaik there's no such example.
>
> This works for me: it changes the resolution to 800x600 for Screen 0
>
> osg::GraphicsContext::WindowingSystemInterface* wsi =
> osg::GraphicsContext::getWindowingSystemInterface();
>
> if (wsi) {
> wsi->setScreenResolution(0,800,600);
> }
>
> Note: depending on your version of osg there may be a bug in the OS X
> implementation of setScreenResolution, a fix for this is not commited yet.
>
> cheers,
> Stephan
> ___
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>
--
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http://www.tharsis-software.com
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Re: [osg-users] how can I turn a camera on and off? (UNCLASSIFIED)
camera->setNodeMask(0) and camera->setNodeMask(0x) might work. On Fri, Apr 17, 2009 at 4:26 PM, Konkle, Daniel T AMRDEC/Dynetics < daniel.kon...@us.army.mil> wrote: > Classification: UNCLASSIFIED > Caveats: NONE > > I need to turn a camera on and off. > Use it and not use it. > > I've look through the docs and can't find the settings. > The only thing I've found is an old reference to Producer Camera > which of course didn't work. > > Is there a way to turn a camera on and off? > > thanks in advance, > Danny > > The reference I found is below: > > http://www.3drealtimesimulation.com/osg/osg_faq_2.htm > How can I dynamically turn a Camera On or Offb > > > It is very straight forward to turn a Camera On or Off firest you > ned to get a pointer to your camera > > e.g. Producer::Camera *camera = getPointerToMyCamera(); > > then to turn the camera On call camera->enable(); > > else to turn the camera Off call camera->disable(); > > > Classification: UNCLASSIFIED > Caveats: NONE > > ___ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > -- Cheers, Yun ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] how can I turn a camera on and off? (UNCLASSIFIED)
Classification: UNCLASSIFIED Caveats: NONE I need to turn a camera on and off. Use it and not use it. I've look through the docs and can't find the settings. The only thing I've found is an old reference to Producer Camera which of course didn't work. Is there a way to turn a camera on and off? thanks in advance, Danny The reference I found is below: http://www.3drealtimesimulation.com/osg/osg_faq_2.htm How can I dynamically turn a Camera On or Offb It is very straight forward to turn a Camera On or Off firest you ned to get a pointer to your camera e.g. Producer::Camera *camera = getPointerToMyCamera(); then to turn the camera On call camera->enable(); else to turn the camera Off call camera->disable(); Classification: UNCLASSIFIED Caveats: NONE ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Fullscreen with diferent resolutions
Hi Carlos,
Carlos Sanches schrieb:
> I m looking for some example of
> osg::GraphicsContext::WindowingSystemInterface .
> Do you know where I found some example of how to use it ?
Afaik there's no such example.
This works for me: it changes the resolution to 800x600 for Screen 0
osg::GraphicsContext::WindowingSystemInterface* wsi =
osg::GraphicsContext::getWindowingSystemInterface();
if (wsi) {
wsi->setScreenResolution(0,800,600);
}
Note: depending on your version of osg there may be a bug in the OS X
implementation of setScreenResolution, a fix for this is not commited yet.
cheers,
Stephan
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Re: [osg-users] Fullscreen with diferent resolutions
Hi Stephan . I m looking for some example of osg::GraphicsContext::WindowingSystemInterface . Do you know where I found some example of how to use it ? ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Cache system...
Hi Stephan, Thanks for coming back to me. I think I confused myself with the filecache concept. thanks for the hint. I've now tracked through and found out what is happening, so it looks like I don't need to implement my own cache, which is great. Thanks again. neil. Stephan Maximilian Huber wrote: > Hi neil, > > neil.hug...@tesco.net schrieb: > > Hi All, > > > > I'm looking for some thoughts, and advice, on the cache process within OSG. > > Essentially a while ago (OSG1.2) I wrote an app that implemented its own > > node/texture cache in memory as I didn't want to be writing things to the > > file system as permissions were potentially a problem. I'm now looking at > > rewriting in OSG2.8, and trying to get a handle on whether the cacheing > > offered by OSG has changed at all. Essentially I want to cache objects in a > > memory cache, rather than to file. As far as I can see this isn't an option > > within OSG2.8, but I wanted to check if others new anything to the contrary > > ? > > > > Thanks for any help/comments. > > Have you tried the internal cache of osg? I think it defaults to off, so > you have to switch it on via: > > osgDB::ReaderWriter::Options* options = new osgDB::ReaderWriter::Options(); > options->setObjectCacheHint(osgDB::ReaderWriter::CACHE_ALL); > > osgDB::Registry::instance()->setOptions(options); > > For more infos see the documentation of osgDB::ReaderWriter::Options > > HTH, > Stephan > > > ___ > 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] Dinamic Line Drawing
I'm guessing that I have about 10,000 vertices or a little more. I stopped the app after 4500 had been displayed and the line was 1/2 drawn. Thx for the note, too, on dirtyBound(). I didn't really know what it did or what it meant so I threw in a comment for myself as a reminder that it did what I needed. Do I need the call to dirtyDisplayList() too, you think? Brian R Hill wrote: > Allen, > > Your code has the following line: > > m_ogeomTrailGeometry->dirtyBound(); // forces redraw > > dirtyBound does not force a redraw. It simply recalculates the bounding > volume for the geometry. The problem you were having before was that the > geometry was being clipped because the bounding volume was incorrect. > > Your performance issues can be due to a number of things. > > How many verts do you have? > > Brian > Allen -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=10338#10338 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] cannot set child stateset in pagedLOD?
Hi,
i have an .osg file which is like this:
PagedLOD {
nodeMask 0x
cullingActive TRUE
Center 512 512 0
Radius 724.077
RangeMode DISTANCE_FROM_EYE_POINT
RangeList 5 {
1448.15 5792.62
0 1448.15
0 1448.15
0 1448.15
0 1448.15
}
NumChildrenThatCannotBeExpired 0
FileNameList 5 {
ter_0_0_0.ive
ter_1_0_0.osg
ter_1_1_0.osg
ter_1_0_1.osg
ter_1_1_1.osg
}
num_children 0
}
and every .osg file which is in this file is like this file. they have 1 ive
file and 4 osg files.
by this method, we are loading child nodes in paging.
here i want to render all of these in a shader. So i set the parent node
stateSet but childs does not effect :(
do you have any idea why i cant set the child node's stateset by changing
the stateset of parent?
--
Ufuk
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Re: [osg-users] Cache system...
Hi neil, neil.hug...@tesco.net schrieb: > Hi All, > > I'm looking for some thoughts, and advice, on the cache process within OSG. > Essentially a while ago (OSG1.2) I wrote an app that implemented its own > node/texture cache in memory as I didn't want to be writing things to the > file system as permissions were potentially a problem. I'm now looking at > rewriting in OSG2.8, and trying to get a handle on whether the cacheing > offered by OSG has changed at all. Essentially I want to cache objects in a > memory cache, rather than to file. As far as I can see this isn't an option > within OSG2.8, but I wanted to check if others new anything to the contrary ? > > Thanks for any help/comments. Have you tried the internal cache of osg? I think it defaults to off, so you have to switch it on via: osgDB::ReaderWriter::Options* options = new osgDB::ReaderWriter::Options(); options->setObjectCacheHint(osgDB::ReaderWriter::CACHE_ALL); osgDB::Registry::instance()->setOptions(options); For more infos see the documentation of osgDB::ReaderWriter::Options HTH, Stephan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Fullscreen with diferent resolutions
Carlos Sanches schrieb: > Hi guys ! > Now I m trying to display my program in fullscreen mode, but the problem is > that the resolution that is displayed is the same of my screen monitor. > If my monitor is 1280x1024 and I dont put any value to my osgViewer my > program ll be fullscreen with 1280x1024. > If I put a value to my osgvier likerViewer->setUpViewInWindow( 320, 0, > 640, 480 );my program opens in a window. > > I wanna that my program run in 640x480 in fullscreen mode and when it finish > back to my desktop at 1280x1024. > Anybody has an idea ? you can try some of the provided methods in osg::GraphicsContext::WindowingSystemInterface HTH, Stephan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Fullscreen with diferent resolutions
Hi guys ! Now I m trying to display my program in fullscreen mode, but the problem is that the resolution that is displayed is the same of my screen monitor. If my monitor is 1280x1024 and I dont put any value to my osgViewer my program ll be fullscreen with 1280x1024. If I put a value to my osgvier likerViewer->setUpViewInWindow( 320, 0, 640, 480 );my program opens in a window. I wanna that my program run in 640x480 in fullscreen mode and when it finish back to my desktop at 1280x1024. Anybody has an idea ? Thanks ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Dinamic Line Drawing
Allen,
Your code has the following line:
m_ogeomTrailGeometry->dirtyBound(); // forces redraw
dirtyBound does not force a redraw. It simply recalculates the bounding
volume for the geometry. The problem you were having before was that the
geometry was being clipped because the bounding volume was incorrect.
Your performance issues can be due to a number of things.
How many verts do you have?
Brian
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-osg-users-boun...@lists.openscenegraph.org wrote: -
To: osg-users@lists.openscenegraph.org
From: "Allen Saucier"
Sent by: osg-users-boun...@lists.openscenegraph.org
Date: 04/16/2009 05:05PM
Subject: Re: [osg-users] Dinamic Line Drawing
Thx everyone!! for the help. :D :D You've given me a lot to think about.
I really appreciate your time.
J-S, here's my code that now works but still "drags" a little after a few
thousand iterations. I found that setVertexArray is (I believe, but could
be totally wrong) actually "copying" the array I send it. After a few
thousand times of being called, it really slows down my entire interface.
In fact, my interface Almost crawls to a halt calling setVertexArray() each
time through the frame loop after about 4000 calls to it.
And I'm drawing a LOT of small line segments each millisecond to make up
the long "looking" line.
I'm not using vertex buffer objects... yet. if I need to switch to them, I
will. Though that will be in the land of experimentation for me too. ha,
ha,... :-)
I found that dirtyDisplayList() w.o dirtyBound() did nothing. I found that
dirtyBound() worked all by itself to get the line to draw during each
iteration of my osg::viewer::frame loop.
I'm using osg::PrimitiveSet::LINE_STRIP as my primitive type and I do not
need to push_back 2 vertices per line segment - I think. [Embarassed] At
least, my line is being drawn... :)
Honestly, I think it's the way I'm drawing the line. I don't believe there
is a bug in OSG. I'm just to new @ this stuff.. ha, ha...
here's my code: snippets of it: the 2 main methods w/in my class are 1)
setup my line and 2) then to add to that line one new vertex at a time.
This code actually works but it does 'slow' down after a few thousand
iterations and then speeds up.. and slows down and speeds up...
class COsgPaxNodeSceneElementInfo
{
osg::ref_ptr m_podreTrailDrawElements;
osg::ref_ptr m_ov3aLineVerticesData;
osg::ref_ptr m_ogeomTrailGeometry;
osg::ref_ptr m_ogeoTrailGeode;
osg::Vec3d m_ov3dPrevPos; ///<
previous trail head
bool m_bHasTrail;
void m_vConstructATrail(math::Vector3D &p_v3dVec);
void m_vUpdateTrail(model::PlatformStateVector &p_psvState);
};
void COsgPaxNodeSceneElementInfo::m_vConstructATrail(math::Vector3D
&p_v3dVec)
{
// initialize previous to current point/position sent in
m_ov3dPrevPos.set(p_v3dVec.getX(), p_v3dVec.getY(), p_v3dVec.getZ());
// curr pos
osg::Vec3d ov3d(p_v3dVec.getX(), p_v3dVec.getY(), p_v3dVec.getZ()););
// ALLOCATE ONCE AND ONLY ONCE
m_podreTrailDrawElements= new osg::DrawArrays
(osg::PrimitiveSet::LINE_STRIP);
m_ov3aLineVerticesData = new osg::Vec3Array();
m_ogeomTrailGeometry= new osg::Geometry();
m_ogeoTrailGeode= new osg::Geode;
m_ov3aLineVerticesData->push_back(m_ov3dPrevPos); // prev pos
m_ov3aLineVerticesData->push_back(ov3d); // curr pos
m_podreTrailDrawElements->setFirst(0);
m_podreTrailDrawElements->setCount(m_ov3aLineVerticesData->size());
m_ogeomTrailGeometry->addPrimitiveSet(m_podreTrailDrawElements.get());
m_ogeomTrailGeometry->setVertexArray(m_ov3aLineVerticesData.get());
// attempt to draw lines faster by disabling display lists &
// then with each new vertex added, call dirtyBound() on the geometry.
m_ogeomTrailGeometry->setUseDisplayList(false);
m_ogeoTrailGeode->addDrawable(m_ogeomTrailGeometry.get());
// ADD ONLY ONCE to the Node Scene
m_no3vViewer->m_iAddElementToScene(m_ogeoTrailGeode.get()); // equivalent
to root->addChild(m_ogeoTrailGeode.get()); but "root" of the osg node
scene is actually located w/in another class object, not this one.
// keep track of fact that this node scene elem has a trail
m_bHasTrail = true;
} // m_vConstructATrail
void COsgPaxNodeSceneElementInfo::m_vUpdateTrail(
model::PlatformStateVector &p_psvState)
{
if (!m_bHasTrail)
return;
static bool b_trailIsShowing=true; // trails on be default
static double x,y,z;
x=p_psvState.getPosition().getX();
y=p_psvState.getPosition().getY();
z=p_psvState.getPosition().getZ();
// for now, just keep current PTL around;
// unused @ moment, however
m_dPtl=p_psvState.get
Re: [osg-users] osgAnimation and 3ds max exporter
hello, i had to temporarily freeze the work on osg exporter because of heavy workload. so far, bones, rigs, and animation keys are exported. there are still some points missing in the exporter. it would be great if someone could help in further development of the exporter, so things could get done faster. cheers boto Virtual Reality Chat (VRC), a free 3D chat application. http://www.vr-fun.net -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=10332#10332 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Cache system...
Hi All, I'm looking for some thoughts, and advice, on the cache process within OSG. Essentially a while ago (OSG1.2) I wrote an app that implemented its own node/texture cache in memory as I didn't want to be writing things to the file system as permissions were potentially a problem. I'm now looking at rewriting in OSG2.8, and trying to get a handle on whether the cacheing offered by OSG has changed at all. Essentially I want to cache objects in a memory cache, rather than to file. As far as I can see this isn't an option within OSG2.8, but I wanted to check if others new anything to the contrary ? Thanks for any help/comments. Neil. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Cache system...
Hi All, I'm looking for some thoughts, and advice, on the cache process within OSG. Essentially a while ago (OSG1.2) I wrote an app that implemented its own node/texture cache in memory as I didn't want to be writing things to the file system as permissions were potentially a problem. I'm now looking at rewriting in OSG2.8, and trying to get a handle on whether the cacheing offered by OSG has changed at all. Essentially I want to cache objects in a memory cache, rather than to file. As far as I can see this isn't an option within OSG2.8, but I wanted to check if others new anything to the contrary ? Thanks for any help/comments. Neil. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
