DirectX engineering specs published
Engineering specs for a number of DirectX features, including DirectX Raytracing, Variable Rate Shading, and all of D3D11, are now available at https://microsoft.github.io/DirectX-Specs. This supplements the official API documentation with an extra level of detail that can be useful to expert developers.
The specs are licensed under Creative Commons. We welcome contributions to clarify, add missing detail, or better organize the material.