Robert, Not that I want to hijack the thread, but a small (more OpenGL) question on this area, as it has always confused me:
The internalTextureFormat is the pixel type when stored down on the > GPU. Typically it's be GL_RGB, or just 3 (number of components) for > RGB data. Both the internalTextureFormat and pixelFormat are provided > as sometimes you want the driver to change the data type on download > or pack it differently, for instance the source image might be packed > as GL_BGR. > So for internalTextureFormat, 3, GL_RGB and GL_RGB8 are all equivalent? What conversion takes place in the driver if sourceFormat is (say) GL_RGB8 and the internalTextureFormat is GL_RGB32F? Thanks, David
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