MadFanboy Forum

CODE: Выделить всё

 cbuffer cBuffer : register (b3)  
 {  
   float4 cb3_v0;  
   float4 cb3_v1;  
   float4 cb3_v2;  
   float4 cb3_v3;  
   float4 cb3_v4;  
   float4 cb3_v5;  
   float4 cb3_v6;  
   float4 cb3_v7;  
   float4 cb3_v8;  
   float4 cb3_v9;  
   float4 cb3_v10;  
   float4 cb3_v11;  
   float4 cb3_v12;  
   float4 cb3_v13;  
   float4 cb3_v14;  
   float4 cb3_v15;  
   float4 cb3_v16, cb3_v17;  
 }  
   
 Texture2D     TexHDRColor          : register (t0);  
 Texture2D     TexAvgLuminance     : register (t1);  
   
 struct VS_OUTPUT_POSTFX  
 {  
   float4 Position : SV_Position;  
 };  
   
 float3 U2Func( float A, float B, float C, float D, float E, float F, float3 x )  
 {  
      return ((x*(A*x+C*B)+D*E)/(x*(A*x+B)+D*F)) - E/F;  
 }  
   
 float3 ToneMapU2Func( float A, float B, float C, float D, float E, float F, float3 color, float numMultiplier )  
 {  
      float3 numerator =  U2Func( A, B, C, D, E, F, color );  
      numerator = max( numerator, 0 );  
      numerator.rgb *= numMultiplier;  
   
      float3 denominator = U2Func( A, B, C, D, E, F, 11.2 );  
      denominator = max( denominator, 0 );  
   
      return numerator / denominator;  
 }  
   
   
   
 float4 ToneMappingPS( VS_OUTPUT_POSTFX Input) : SV_Target0  
 {  
      float avgLuminance = TexAvgLuminance.Load( int3(0, 0, 0) );  
      avgLuminance = clamp( avgLuminance, cb3_v4.y, cb3_v4.z );  
      avgLuminance = max( avgLuminance, 1e-4 );  
   
      float scaledWhitePoint = cb3_v16.x * 11.2;  
   
      float luma = avgLuminance / scaledWhitePoint;  
      luma = pow( luma, cb3_v16.z );  
   
      luma = luma * scaledWhitePoint;  
      luma = cb3_v16.x / luma;  
   
      float3 HDRColor = TexHDRColor.Load( uint3(Input.Position.xy, 0) ).rgb;  
   
      float3 color = ToneMapU2Func( cb3_v7.x, cb3_v7.y, cb3_v7.z, cb3_v8.x, cb3_v8.y,   
         cb3_v8.z, luma*HDRColor, cb3_v16.y);  
   
      return float4(color, 1);  
 }