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tex2D - HLSL
There are two overloaded tex2D texture lookup functions:- 2D texture lookup
- 2D texture lookup with partial derivatives
2D texture lookup
This function performs a 2D texture lookup.
Syntax
ret tex2D(s, t) Where:
Name In/Out Template Type Component Type Size s in object sampler2D 1 t in vector float 2 ret out vector float 4 2D texture lookup with partial derivatives
This function performs a 2D texture lookup also, but also uses the partial derivatives to help pick the LOD.
Syntax
ret tex2D(s, t, ddx, ddy) Where:
Name In/Out Template Type Component Type Size s in object sampler2D 1 t in vector float 2 ddx in vector float 2 ddy in vector float 2 ret out vector float 4
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