On Sat, Feb 09, 2002 at 05:03:31AM +0000, Keith Whitwell wrote: | ... opengl doesn't require that we get exactly the same results in these | two cases - certainly it's desirable, but the specification specifically | allows these types of variances.
Yes. This subject came up on opengl-gamedev recently, and it's also an issue for the vertex programming extension that the ARB is debating. The spec for this (appendix A) is nontrivial, but an easy generalization is that if you enable or disable something, the spec explicitly allows the transformed coordinates to change. To be safe, you need to use state values that are no-ops instead of disabling a feature. For example, instead of disabling texturing, use a white texture with the GL_MODULATE texture environment. Allen _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
