I have found plenty of games with source for OpenGl, but so far I haven't found anything like that for DirectX. There are plenty of examples in the SDK, but they are very basic and usually they just expose one very specific aspect of the API at a time. So I am wondering which are the best or most complete DirectX games with source available these days.
I am making a small study about the differences in the final output across different GPUs. I want to have games in DirectX and OpenGL. To remove any differences caused by non-determinism, like thread scheduling and timing information. I already have done it for Doom 3 which is a great example for OpenGL. I would like to have something in DirectX to perform similar tests with, and I was hoping I could find something better than the simple demos included in the SDK.