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//========== Copyright (c) Valve Corporation, All rights reserved. ==========//
// DYNAMIC: "WRITE_DEPTH_TO_DESTALPHA" "0..1" [ps20b] [PC]// DYNAMIC: "WRITE_DEPTH_TO_DESTALPHA" "0..0" [ps20b] [CONSOLE]
#include "common_ps_fxc.h"
#if defined( SHADER_MODEL_PS_2_0 )# define WRITE_DEPTH_TO_DESTALPHA 0#endif
sampler RGBSTextureSampler : register( s0 );float4 InputScale : register( c0 );
float2 texWidthHeight : register( c1 );
float4 texOffsets : register( c2 );
struct PS_INPUT{//#if defined( _X360 )// float2 baseTexCoord : TEXCOORD0;//#else float2 baseTexCoord00 : TEXCOORD0; float2 baseTexCoord01 : TEXCOORD1; float2 baseTexCoord10 : TEXCOORD2; float2 baseTexCoord11 : TEXCOORD3; float2 baseTexCoord_In_Pixels: TEXCOORD4;//#endif};
float4_color_return_type main( PS_INPUT i ) : COLOR{ float3 result; //#if defined( _X360 ) //360 has a cheaper way to handle RGBscale// float4 Weights;// float4 samples_0; //no arrays allowed in inline assembly// float4 samples_1;// float4 samples_2;// float4 samples_3;// float2 vTexCoord = i.baseTexCoord;// // asm {// tfetch2D samples_0, vTexCoord.xy, RGBSTextureSampler, OffsetX = -0.5, OffsetY = -0.5, MinFilter=point, MagFilter=point, MipFilter=keep, UseComputedLOD=false// tfetch2D samples_1, vTexCoord.xy, RGBSTextureSampler, OffsetX = 0.5, OffsetY = -0.5, MinFilter=point, MagFilter=point, MipFilter=keep, UseComputedLOD=false// tfetch2D samples_2, vTexCoord.xy, RGBSTextureSampler, OffsetX = -0.5, OffsetY = 0.5, MinFilter=point, MagFilter=point, MipFilter=keep, UseComputedLOD=false// tfetch2D samples_3, vTexCoord.xy, RGBSTextureSampler, OffsetX = 0.5, OffsetY = 0.5, MinFilter=point, MagFilter=point, MipFilter=keep, UseComputedLOD=false//// getWeights2D Weights, vTexCoord.xy, RGBSTextureSampler// };//// Weights = float4( (1-Weights.x)*(1-Weights.y), Weights.x*(1-Weights.y), (1-Weights.x)*Weights.y, Weights.x*Weights.y );//// result.rgb = samples_0.rgb * (samples_0.a * Weights.x);// result.rgb += samples_1.rgb * (samples_1.a * Weights.y);// result.rgb += samples_2.rgb * (samples_2.a * Weights.z);// result.rgb += samples_3.rgb * (samples_3.a * Weights.w);// //#else float4 s00 = tex2D(RGBSTextureSampler, i.baseTexCoord00); float4 s10 = tex2D(RGBSTextureSampler, i.baseTexCoord10); float4 s01 = tex2D(RGBSTextureSampler, i.baseTexCoord01); float4 s11 = tex2D(RGBSTextureSampler, i.baseTexCoord11); float2 fracCoord = frac(i.baseTexCoord_In_Pixels);
s00.rgb*=s00.a; s10.rgb*=s10.a;
s00.rgb = lerp(s00.rgb, s10.rgb, fracCoord.x); s01.rgb*=s01.a; s11.rgb*=s11.a; s01.rgb = lerp(s01.rgb, s11.rgb, fracCoord.x); result.rgb = lerp(s00.rgb, s01.rgb, fracCoord.y); //#endif // This is never fogged. return FinalOutput( float4( InputScale.rgb*result.rgb, 1.0f ), 0, PIXEL_FOG_TYPE_NONE, TONEMAP_SCALE_LINEAR, WRITE_DEPTH_TO_DESTALPHA, 1e20 ); //when writing depth to dest alpha, write a value guaranteed to saturate}
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