David Spilling wrote on Wednesday, March 04, 2009 5:06 PM: > My initial thought was that nowhere were you saying that the image was > floating point. Digging further, I realised that TransferFunction should be > doing it for you - I've never used this before - but this line (in > osg/TransferFunction1D.cpp) looks a little odd to me: > > _image->setImage(numX,1,1,GL_RGBA, GL_RGBA, GL_FLOAT, (unsigned > char*)&_colors[0], osg::Image::NO_DELETE); > > Shouldn't that be "GL_RGBA32F_ARB,GL_RGBA, GL_FLOAT"? > > I guess also doing a texture1D->setInternalFormat(GL_RGBA32F_ARB) might help, > but I think (without looking at the code) that osg probably picks this up > from the image format anyway.
I think you're using an older OSG version than I do, since I've only got TransferFunction.cpp, and TransferFunction1D uses image->allocateImage(), but either way, setting the Image internal format to GL_RGBA32F_ARB doesn't help. I should also note that I'm running an NVIDIA 8800 GT on Windows (compiled with VS 2005), and osgviewer reports I have ARB_texture_float supported. -- 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
