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Add noperspective interpolation modifier for optimization #383

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t-mat wants to merge 1 commit into Unity-Technologies:v1 from t-mat:v1

t-mat commented Dec 6, 2017

This PR improves shader performance by noperspective interpolation modifier.

I've added the following macros to PostProcessing/Resources/Shaders/Common.cginc

USE_NOPERSPECTIVE : compilation switch for noperspective. If someone or some platform doesn't need noperspective, they can comment out this line.
NOPERSPECTIVE : macro definition of noperspective for TEXCOORD attributes.

#define USE_NOPERSPECTIVE 1

#ifndef NOPERSPECTIVE
#  if defined(USE_NOPERSPECTIVE) && (USE_NOPERSPECTIVE)
#    define NOPERSPECTIVE noperspective
#  else
#    define NOPERSPECTIVE
#  endif
#endif


          Add noperspective interpolation modifier for optimization

6d6c156

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