Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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// DYNAMIC: "PIXELFOGTYPE" "0..1"
// STATIC: "CONVERT_TO_SRGB" "0..1" [ps20b][= g_pHardwareConfig->NeedsShaderSRGBConversion()] [PC]
// STATIC: "CONVERT_TO_SRGB" "0..0" [= 0] [XBOX]
#include "common_ps_fxc.h"
#include "shader_constant_register_map.h"
sampler BaseTextureSampler : register( s0 );
sampler LightMap0Sampler : register( s1 );
sampler LightMap1Sampler : register( s2 );
sampler LightMap2Sampler : register( s3 );
const float4 g_LightMap0Color : register( c0 );
const float4 g_LightMap1Color : register( c1 );
const float4 g_LightMap2Color : register( c2 );
const float4 g_ModulationColor : register( c3 );
const float4 g_FogParams : register( PSREG_FOG_PARAMS );
const float4 g_EyePos_SpecExponent : register( PSREG_EYEPOS_SPEC_EXPONENT );
struct PS_INPUT
{
float4 vProjPos : POSITION;
float2 vTexCoord0 : TEXCOORD0;
float2 vTexCoord1 : TEXCOORD1;
float2 vTexCoord2 : TEXCOORD2;
float2 vTexCoord3 : TEXCOORD3;
float4 worldPos_projPosZ : TEXCOORD4; // Necessary for pixel fog
float4 vColor : COLOR0;
};
float4 main( PS_INPUT i ) : COLOR
{
float4 resultColor;
// output = lightmapColor[0] * ( ( N dot basis[0] )^2 ) +
// lightmapColor[1] * ( ( N dot basis[1] )^2 ) +
// lightmapColor[2] * ( ( N dot basis[2] )^2 ) +
resultColor = tex2D( LightMap0Sampler, i.vTexCoord1 ) * g_LightMap0Color;
resultColor = (tex2D( LightMap1Sampler, i.vTexCoord2 ) * g_LightMap1Color) + resultColor;
resultColor = (tex2D( LightMap2Sampler, i.vTexCoord3 ) * g_LightMap2Color) + resultColor;
// Modulate by decal texture
float4 decalColor = tex2D( BaseTextureSampler, i.vTexCoord0 );
resultColor.rgb = resultColor * decalColor;
resultColor.a = decalColor.a;
// Modulate by constant color
resultColor = resultColor * g_ModulationColor;
// Modulate by per-vertex factor
resultColor = resultColor * i.vColor;
float fogFactor = CalcPixelFogFactor( PIXELFOGTYPE, g_FogParams, g_EyePos_SpecExponent.z, i.worldPos_projPosZ.z, i.worldPos_projPosZ.w );
return FinalOutput( resultColor, fogFactor, PIXELFOGTYPE, TONEMAP_SCALE_LINEAR );
}