Hi, Thanks for the replies, guys! I think we are on to something, but I have to make myself a bit more clear.
What I want is a function like float getSample(Texture2D* tex, Vec2 pos), which will return the float value stored in tex at pos (tex is a float 32 texture with one component) on demand. I would also need a function that will read a subset of the texture, not only a single texel. I guess I want the functionality provided by osg::Image::readPixels, but I want to read from a specified texture, not the window frame buffer. I don't want to transfere the full texture image from GPU to CPU on each frame, which is what I believe osgprerender does. Sorry for not making this clear from the start. Any ideas on how to do this? Cheers, Martin ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=28748#28748 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
