Dear OpenGL Coders,
I remember a few years ago gl_FragCoord did not work on AMD maybe that is still the case? I have a feeling that it could still be the case and maybe there are other gotchas.
Does anyone know of present differences between how AMD’s OpenGL implementation works and the standard?
Does anyone know of present differences between how AMD’s OpenGL implementation works and NVIDIA’s?
I could not find anything using Google, but it seems to me that there are subtle differences, and I was wondering what your experiences are?
My particular problem is that I am authoring a small volume rendering program that does not seem to work on AMD hardware, specifically ATI Mobility FireGL V5700, OpenGL version 2.1.8306. However, I am not sure where the problem is - maybe 3D textures. It works fine on my Mac/Geforce 8600M GT.