Ray-Tracing certainly has become a trendy thing to talk about in the year 2018, though we're still years away for the real thing as GPUs simple are not powerful enough unless you have to say three Voltas do the workload. Slowly but steadily though there is software adoption and integration. And herein a new fact is to be found.

Ray tracing, in specific Nvidia RTX ray-tracing, is making a way into game engines pretty much like the early stages of Physx. Meanwhile, Microsoft added the DirectX Raytracing API for D3D12, but now NVIDIA seems to be working on embedding their tech into Vulkan. Phoronix reports that NVIDIA has been working on exposing their RTX ray-tracing tech through Vulkan via a VK_NV_raytracing extension that fits with the Vulkan API well.

NVIDIA has offered this ray-tracing API design to The Khronos Group as they work towards a multi-vendor standardization for ray-tracing with Vulkan.  If you are interested in their approach to ray-tracing with Vulkan, a presentation from this year's GPU Technology Conference is now available.

NVIDIA Ray-Tracing coming to the Vulkan API