Microsoft’s DirectX Ray Tracing (DXR) API extends DirectX 12 to support ray tracing. DXR fully integrates ray tracing into DirectX, allowing developers to integrate ray tracing with traditional rasterization and compute techniques. NVIDIA partnered with Microsoft to enable full RTX support for DXR applications.
The DirectX Raytracing update is available in the latest version of Windows 10, and it can be installed manually using the link: