DirectX 11 Shader API

[lachbr]

I’m writing a DirectX 11 Shader API and porting all existing shaders to DirectX 11 and Shader Model 4.

Todo as of 3/16/2020

• [x] Performance >= DX9

• [ ] Fix cubemap textures

• [x] Fix anisotropic filtering

• [ ] Fix antialiasing

• [x] Fix software skinning (including flex)

• [ ] Port the rest of the rendering shaders

• [ ] Port the post-processing shaders

• [ ] Create a better and more abstract interface for specifying vertex format, vertex data, and streams for a mesh. Right now, any custom vertex data has to be hard-coded into the mesh class (color meshes, flex meshes, etc), which doesn't allow for users to easily create custom vertex data.

• [ ] Multithreading

• [ ] Move certain code to shared classes for future shader APIs (mesh, vertex/index buffer, certain shader API functions)

[lachbr]

I've overhauled state changing and state management to be as fast as possible. From my observation, the DX11 implementation is 10-20% faster on average than the DX9 implementation.

[lachbr]

I've fixed software and hardware facial animation and other bugs with vertex/index buffers. I've continued to port shaders and fix various bugs.