35 lines
780 B
HLSL
35 lines
780 B
HLSL
#include "sh/sh_common.h"
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#define TAU 6.28318530718
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#define PI 3.14159265359
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#define GOLDEN 1.61803398875
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#define DECLS(t, n) t n : n
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#define NURID(i) NonUniformResourceIndex(i)
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#if !SH_CPU
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# define INLINE /* For intellisense */
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#endif
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INLINE float4 float4_norm_from_uint(uint v)
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{
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float4 res;
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res.r = ((v >> 0) & 0xFF) / 255.0;
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res.g = ((v >> 8) & 0xFF) / 255.0;
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res.b = ((v >> 16) & 0xFF) / 255.0;
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res.a = ((v >> 24) & 0xFF) / 255.0;
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return res;
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}
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/* Linear color from normalized sRGB */
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INLINE float4 linear_from_srgb(float4 srgb)
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{
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return float4(pow(abs(srgb.rgb), 2.2), srgb.a);
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}
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/* Linear color from R8G8B8A8 sRGB */
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INLINE float4 linear_from_srgb32(uint srgb32)
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{
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return linear_from_srgb(float4_norm_from_uint(srgb32));
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}
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