> Yeah. A rather old one... ;-) > > I don't know this code much but I would say it is partly 2 and 3. Is a FIXME > suitable then ? This would be much more informative that just GL errors. I'd prefer if we could track down the real issue. There might still be some confusion between texture stages, number of simultanous textures and texture coordinates(currently we assume texture coordinates == texture stages, which is a bug in itself, but I think not the issue here)
A few questions that could provide hints: Is a non 1:1 texture mapping used? Look for "Using non 1:1 mapping" WARNs Does the call come from alpha or color? Color filters out unused stages and doesn't call set_tex_op_nvrc at all. Alpha doesn't do that because the colorop setup disables the texture unit, but this could cause GL errors, and I am not sure if it is correct with NVRC.
