To get jump started with real-time ray tracing, I’ve made a barebones tutorial application and posted the code on GitHub. Unlike other DirectX Raytracing (DXR) tutorials that are available, this sample code does not use any abstractions on top of the DXR host API. By using the API directly, the focus is on highlighting some of the most important new features, functions, and data structures introduced by real-time GPU ray tracing.