to download the texture object to graphics card.
Calling IncrementalCompileOperation::assignForceTextureDownloadGeometry() assigns a geometry
to the job.
changed extensions from .c to .cpp and got compiling as C files as part of the osg core library.
Updated and cleaned up the rest of the OSG to use the new internal GLU.
submission email from Nathan: "I discovered a problem with POINT_ROT_EYE billboards in IntersectionVisitor: because we pass in just the model matrix to Billboard::computeBillboardMatrix, the billboard gets the wrong up vector. It really needs to take the view matrix into account to get the correct up vector.
This version of IntersectionVisitor.cpp is made against today's SVN. It corrects the problem by computing the billboard matrix using the complete modelview, and then multiplies by the inverse of the view matrix before pushing onto IntersectionVisitor's model stack. The only code I changed is in apply(Billboard&)."
notes from Robert, refactored the matrix multiplication code and the use of RefMatrix to make Nathan's changes more efficient.
Texture2DMultismaple as name suggests provides means to directly access subsamples of rendered FBO target. (GLSL 1.5 texelFetch call).
Recently I was working on deferred renderer with OSG, during that I noticed there is no support for multisampled textures (GL_ARB_texture_multisample extension). After consultations with Paul Martz and Wojtek Lewandowski I added Texture2DMultisample class and made few necessary changes around osg::FrameBufferObject, osg::Texture and osgUtil::RenderStage classes."
and from follow email:
"Fixed. According to ARB_texture_multisample extension specification multisample textures don't need TexParameters since they can only be fetched with texelFetch."
* Change OcclusionQueryNode::getPassed to take a NodeVisitor rather than the distance from BS center to the eye point. Change where CullVisitor calls this method to use the new parameters.
* getPassed now exits early and returns true to avoid blinking / blink-in of geometry for the first frame or for out-of-range LOD children coming back into view.
* getPassed now considers the distance from the near plane to the bounding sphere (rather than eye point to bounding sphere) when determining if the viewer is "inside" the bounding sphere or not."
OpenSceneGraph/src/osgUtil/SceneView.cpp
introduced in svn
10915 (5 Jan 2010): "Added support for call root Camera CullCallbacks"
It causes a segfault in osgViewer based apps on our linux system (OSG_STEREO=ON OSG_STEREO_MODE=QUAD_BUFFER)
Problem does not show when OSG_STEREO=OFF.
< 976 else _cullVisitor->traverse(*_camera);
> 976 else cullVisitor->traverse(*_camera);
Looks like a typo, and removing the _ does fix the problem."
"I've attached a small fix to osgUtil::SceneView so that is uses a scissor test when clearing the stencil buffer for stencil based stereo."
and
"I've added another small change for stencil based stereo, so please use this newer version. This newer version simplifies the calls to glOrtho and glRecti when drawing the stipple pattern. This change also happens to fix an issue where the stencil stereo would not work with certain viewport settings. I'm not exactly sure why this was happening, it might be a graphics driver issue, but either way I think the changes should be fine."
terrain. The triangulator is quite tricky to use properly but works
quite well, constraint triangulation is not an easy task... I have
encounter some crash during the development that the following patch
fix.
The two fixes are :
- Fix in removeVerticesInside() : needs to take into account UByte and
UShort version of DrawElements to avoid a crash later
- Fix a crash in triangulate() : detect degenerate adjacency case to
exit early form the adjacent triangle traversal loop to avoid a crash
later"
Most notable the __hpux define stuff. The __hpux__ variant seems to be not
defined which resulted in a compile error at this time. Consequently I have
replaced all occurances of __hpux__ with __hpux. And huge surprise: now osg
plugins are found and loaded correctly ...
The next notable one is the MSVC_IDE fix which makes the nmake Makefiles cmake
generator target behave like the ide one. Showed up because I started to do
scripted builds with nmake instead of devenv...
The rest is the usual bunch of stuff that just happens during normal
coding ..."
