Is there a systematic process by which a given effect (such as those for DX in the samples) can be reproduced exactly in a DirectX/D3D program, preferably XNA?
Simple effects are easy enough, but is it possible to take a complex effect like Order-Independent Transparency.rfx, export the .FX and .X and textures, and then from the information provided write a sequence of API calls to produce the identical effect?
If so, how?