In the demo I received from satyr (see oZone3D.Net forums), there is a toon shader that uses glsl uniforms. The pixel shader looked like to:
uniform float silhouetteThreshold;
void main()
{
silhouetteThreshold = 0.32;
//... shader code
//... shader code
//... shader code
}
This pixel shader compiles well on nVidia gc but generes an error on ati. The error is right since an uniform is a read-only variable. This is an example of the nVidia glsl compiler laxity. That’s why I code my shader on ati: if the code is good for ati, we can be sure it will be good for nvidia too (of course there are always some exceptions…)
