What APIs are being used to perform ray tracing in these new games that support it? Edit: Found a starting point of an answer, covering Nvidia’s hardware at le

What APIs are being used to perform ray tracing in these new games that support it? Edit: Found a starting point of an answer, covering Nvidia’s hardware at least, at https://developer.nvidia.com/rtx https://developer.nvidia.com/rtx: > Ray tracing acceleration is leveraged by developers through NVIDIA OptiX, Microsoft DXR enhanced with NVIDIA ray tracing libraries, and the upcoming Vulkan ray tracing API.