Tutorial27_PostProcessing: Added FSR

Author: MikhailGorobets

Tutorials/Tutorial27_PostProcessing/CMakeLists.txt

@@ -20,6 +20,7 @@ set(SHADERS
     assets/shaders/GenerateGeometry.psh
     assets/shaders/ComputeLighting.fx
     assets/shaders/ApplyToneMap.fx 
+    assets/shaders/GammaCorrection.fx 
 )
 
 set(TEXTURES

Tutorials/Tutorial27_PostProcessing/assets/shaders/ApplyToneMap.fx

@@ -1,7 +1,6 @@
 #include "FullScreenTriangleVSOutput.fxh"
 #include "PBR_Structures.fxh"
 #include "ToneMapping.fxh"
-#include "SRGBUtilities.fxh"
 
 cbuffer cbPBRRendererAttibs
 {
@@ -22,9 +21,5 @@ float4 ApplyToneMapPS(FullScreenTriangleVSOutput VSOut) : SV_Target0
 
     float3 HDRColor = g_TextureHDR.Load(int3(VSOut.f4PixelPos.xy, 0));
     float3 SDRColor = ToneMap(HDRColor, TMAttribs, g_PBRRendererAttibs.AverageLogLum);
-
-#if CONVERT_OUTPUT_TO_SRGB
-    SDRColor = LinearToSRGB(SDRColor);
-#endif
     return float4(SDRColor, 1.0);
 }

Tutorials/Tutorial27_PostProcessing/assets/shaders/ComputeLighting.fx

@@ -41,9 +41,9 @@ struct SurfaceInformation
     float3 Normal;
 };
 
-float3 FresnelSchlickRoughness(float CosTheta, float3 F0, float roughness)
+float3 FresnelSchlickRoughness(float CosTheta, float3 F0, float Roughness)
 {
-    float Alpha = 1.0 - roughness;
+    float Alpha = 1.0 - Roughness;
     return F0 + (max(float3(Alpha, Alpha, Alpha), F0) - F0) * pow(clamp(1.0 - CosTheta, 0.0, 1.0), 5.0);
 }
 

Tutorials/Tutorial27_PostProcessing/assets/shaders/GammaCorrection.fx

@@ -0,0 +1,12 @@
+#include "FullScreenTriangleVSOutput.fxh"
+#include "SRGBUtilities.fxh"
+
+Texture2D<float3> g_TextureColor;
+SamplerState      g_TextureColor_sampler;
+
+float4 GammaCorrectionPS(FullScreenTriangleVSOutput VSOut) : SV_Target0
+{
+    float2 Texcoord = NormalizedDeviceXYToTexUV(VSOut.f2NormalizedXY.xy);
+    float3 GammaColor = LinearToSRGB(g_TextureColor.SampleLevel(g_TextureColor_sampler, Texcoord, 0.0));
+    return float4(GammaColor, 1.0);
+}