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Question by MaT227 · Sep 19, 2014 at 05:49 AM · shader rendering normals cg surface shader

Surface Shader World Normal

Hey everyone,

I would like to know what is the difference in term of performance, usage and compatibility between :

 float3 worldNormal = WorldNormalVector(IN, o.Normal);

and

 float3 worldNormal = mul( _Object2World, float4(o.Normal, 0.0)).xyz;

0

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