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Vasily Petrov 2026-06-18 01:18:29 +03:00
commit 2fe6ca2f65
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gamedata/shaders/r2/yuv2rgb.ps.hlsl Normal file
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#include "common.hlsli"
float4 main(float2 uv : TEXCOORD0) : COLOR
{
float3 YUV = tex2D(s_base, uv);
float Y = YUV.x;
float U = YUV.y;
float V = YUV.z;
/*
float _T = 1.16406f*Y;
float R1 = _T + 1.59765f*V - 0.86961f;
float G1 = _T - 0.390625f*U - 0.8125f*V + 0.53076f;
float B1 = _T + 2.01562f*U - 1.0786f;
*/
float c = 1.16406f;
float3 _Y = float3(c, c, c) * Y;
float3 _U = float3(0.0f, -0.390625f, +2.01562f) * U;
float3 _V = float3(+1.59765f, -0.8125f, 0.0f) * V;
float3 _S = float3(-0.86961f, +0.53076f, -1.0786f);
return float4(_Y + _U + _V + _S, 1);
}