Thanks for the clarification! I’ve always been working at a higher level of abstraction, and had no idea that NVIDIA had produced anything that wasn’t intrinsically tied to their hardware.
Their page for the Cg toolkit was very clear that they’ve left that behind, and while it’s still available and obviously functional, they recommend that any future development use GLSL or HLSL. Do you know if Panda3D is headed in that direction?