I am writing a code for volume rendering. It texuremaps all the slices and blen them. It works fine on the GeForce4 but the code is not working on Geforce2 and FX 5200.
Does anyone know why? Is this because of the hardware difference?
// blend setting for transparency
glBlendColorEXT(1.f, 1.f, 1.f, 1.f/50);