osghello
i'm desperately trying to find a texturechunk related bug in my scene.
before i type a lot of words, check out the problem with the chimneys
in the video (flickering dependend on camera position):
http://www.vision.ee.ethz.ch/~shaegler/temp/opensg-texture-bug.mpg
here is my material definition:
---
osg::ImagePtr imagePtr = osg::Image::create();
osg::beginEditCP(imagePtr);
imagePtr->read(texturefile.c_str());
osg::endEditCP(imagePtr);
// create tex1 chunk
osg::TextureChunkPtr texChunk = osg::TextureChunk::create();
osg::beginEditCP(texChunk);
texChunk->setImage (imagePtr);
texChunk->setEnvMode (GL_MODULATE);
texChunk->setMagFilter (GL_LINEAR);
texChunk->setMinFilter (GL_NEAREST_MIPMAP_LINEAR);
texChunk->setWrapS (GL_REPEAT);
texChunk->setWrapT (GL_REPEAT);
osg::endEditCP(texChunk);
osg::TextureTransformChunkPtr tex1TrafoChunk)
= osg::TextureTransformChunk::create();
osg::beginEditCP(tex1TrafoChunk));
osg::Matrix m;
m.setScale(s, t, 1.0);
tex1TrafoChunk)->setMatrix(m);
osg::endEditCP(tex1TrafoChunk));
// tex2 chunk similar...
...
// material chunk
matChunk = MaterialChunk::create();
beginEditCP(matChunk);
matChunk->setColorMaterial(GL_AMBIENT_AND_DIFFUSE);
matChunk->setDiffuse(Color4f(mIt->color[0], mIt->color[1],
mIt->color[2], mIt->color[3] ));
matChunk->setShininess(5.0f);
endEditCP(matChunk);
// create chunk material
osg::ChunkMaterialPtr chunkMat = osg::ChunkMaterial::create();
osg::beginEditCP(chunkMat);
chunkMat->addChunk(matChunk);
if (tex1Chunk)
chunkMat->addChunk(tex1Chunk);
if (tex1Chunk && tex1TrafoChunk)
chunkMat->addChunk(tex1TrafoChunk);
if (tex1Chunk && tex2Chunk)
chunkMat->addChunk(tex2Chunk);
chunkMat->setSortKey(0);
osg::endEditCP(chunkMat);
chunkMat->rebuildState();
---
the different chunks get shared over a lot of nodes. but the problem
persists even if i deepClone every chunk.
observations:
* the problem seems to be texture coordinate or texture unit related
* the problem is also present if i only use texture chunk 1 in the
code above...
* the problem is somehow related to culling and camera distance
my system:
linux 64bit, nvidia quadro FX 4500, driver 169.12
any help is greatly appreciated & cheers,
simon
-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
Don't miss this year's exciting event. There's still time to save $100.
Use priority code J8TL2D2.
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
_______________________________________________
Opensg-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/opensg-users
