   xml based shader
  Someone knows if there's an XML based shader specification in the works, or already done, good enough to be used?What I'm looking for is a XML based shader format, that can be edited with visual editors by dragging boxes and connecting pins, and at a later stage, it can be copiled to either HLSL or GLSL.I don't need the format to already have editors and compilers, since I'm only interested in the format itself, because I would like to develop one... and since I hate to reinvent wheels, I would preffer to stick to an already existing format.Thanks in advanceVic   