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RobMaddison

HLSL preprocessor directives

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I'm exploring using preprocessor directives in my shaders but I read that the #ifdef preprocessor directive only checks the defined token in the hlsl file, i.e. #define in the same file (or an included file).

 

So my question is, if I wanted to compile several versions of a shader with different tokens defined, how do I do that from c++?

 

Thanks in advance

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One thing that may not be totally obvious from the docs is that your D3DXMACRO array needs to be NULL terminated; i.e name and value of the last D3DXMACRO in the array should both be NULL.

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