Hello there,
It would be better if OpenGL 1.3 has the core functionality of dot3^n which is very useful and fast when doing specular computations.
Instead of multipass blending dot3 results to emulate power n, just specify the combine operation GL_DOT3_EXP_RGBA_ARB and the corresponding exponent.
I know that OpenGL 2.0 is promising and will incorporate features that will sufficiently compensate for my minor suggestion, but something like this in hand would be great effort put in OpenGL 1.3.
Thanks.
It would be better if OpenGL 1.3 has the core functionality of dot3^n which is very useful and fast
Useful, perhaps. Fast, no. Exponentiation is not a trivial matter that any old hardware can simply do. This is hardly a “minor suggestion”, given the current state of the hardware.