Nvidia using its own tool CG in the keynote lecture video - Techrecipe
GitHub - FrozenStormInteractive/Cg-Toolkit: The Nvidia Cg Toolkit provides a compiler for the Cg language, runtime libraries for use with both leading graphics APIs, runtime libraries for CgFX, example applications, and extensive documentation.
This Week 'In the NVIDIA Studio' CG Geek Makes VFX Look Easy | NVIDIA Blog