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Only calculate specular if there is an exponent

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This commit is contained in:
Luke Benstead 2020-02-17 19:05:18 +00:00
parent 93be3ab757
commit ab5dc26e33
1 changed files with 4 additions and 2 deletions
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6
GL/lighting.c
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@ -338,7 +338,8 @@ GL_FORCE_INLINE void _glLightVertexDirectional(uint8_t* final, int8_t lid, float
#define _PROCESS_COMPONENT(T, X) \
F = (MATERIAL.ambient[X] * LIGHTS[lid].ambient[X]); \
F += (LdotN * MATERIAL.diffuse[X] * LIGHTS[lid].diffuse[X]); \
F += FPOW(FI * NdotH, MATERIAL.exponent) * MATERIAL.specular[X] * LIGHTS[lid].specular[X]; \
if(MATERIAL.exponent) \
F += FPOW(FI * NdotH, MATERIAL.exponent) * MATERIAL.specular[X] * LIGHTS[lid].specular[X]; \
FO = (uint8_t) (F * 255.0f); \
\
final[T] += _MIN(FO, final[T] - FO); \
@ -358,7 +359,8 @@ GL_FORCE_INLINE void _glLightVertexPoint(uint8_t* final, int8_t lid, float LdotN
#define _PROCESS_COMPONENT(T, X) \
F = (MATERIAL.ambient[X] * LIGHTS[lid].ambient[X]); \
F += (LdotN * MATERIAL.diffuse[X] * LIGHTS[lid].diffuse[X]); \
F += FPOW(FI * NdotH, MATERIAL.exponent) * MATERIAL.specular[X] * LIGHTS[lid].specular[X]; \
if(MATERIAL.exponent) \
F += FPOW(FI * NdotH, MATERIAL.exponent) * MATERIAL.specular[X] * LIGHTS[lid].specular[X]; \
FO = (uint8_t) (F * att * 255.0f); \
\
final[T] += _MIN(FO, final[T] - FO); \