Ok, that's the actual Vulkan spec, but just because it has NV in the name, does that mean it is Nvidia RTX exclusive? One of the contributors is from AMD, and another is from Intel. I'd have a hard time believing that those companies would allow their employees to work on their behalf for a feature that they couldn't use. It may be kind of like the AMD_64 builds of *nix software, which all work on Intel chips. Anyone have full knowledge of this particular extension?