How SetTexture and [matrix] works in surface shaders

Question

How I can translate this line to surface shaders?

SetTexture[_ReflectionTex] { matrix [_ProjMatrix] combine texture * previous }

I know I can pass the _ProjMatrix from a script using mat.SetMatrix( "_ProjMatrix", mtx);

But I am not sure if the right code in my shader should be this: v.texcoord = mul(_ProjMatrix , v.texcoord );

What exactly do internaly SetTexture with the matrix?

Thanks

Answer 1

Answer by A.Wayne · Apr 22, 2014 at 01:30 PM

you need declare the _ProjMatrix in your shader as a uniform type.

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