https://wccftech.com/khronos-group-vulkan-ray-tracing-api-announced-nvidia-rtx-dna/

Khronos Group has announced the release of its latest ray tracing extensions for the Vulkan API which is built upon the NVIDIA RTX standard. Opening up ray tracing support for Vulkan API allows it to become the industry's first open, cross-vendor, cross-platform standard for ray tracing acceleration.

According to Khronos Group, Vulkan Ray Tracing is built upon NVIDIA's own ray tracing extensions but adds upon it in a relatively smaller way. In its presentation, Khronos Group stated that a set of provisional extension specifications are publicly available today for industry feedback and the first Beta developer drivers are shipping today. In fact, NVIDIA is fully supporting the new Vulkan API & will be shipping its Beta Linux drivers today, too.