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programci_84

[DX9, HLSL] HLSL and preprocessor directives

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Hi all;

As the title says, I want to add my shaders' code some "#define"s. But I want to do it at runtime, and by using my Win32 D3D App.

For example, I want to use a code like that:


//blah-blah.fx

...

#ifdef MY_PREDEFINITION
DoSomething();
#else
DontDoAnything();
#endif

...



Can I pass that MY_PREDEFINITION thing from my Win32 app to the shader at runtime? I've looked at pDefines parameter of D3DXCreateEffectFromFile() (it's a D3DXMACRO type element) but couldn't understand anything.

Can anyone help me?

Thanks in advance.

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you need to send defines as array of types it's asking
like that
"MY_PREDEFINITION,"1"
NULL,NULL - final closing tag
look here for more details http://msdn.microsoft.com/en-us/library/bb172910%28v=VS.85%29.aspx

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