Update normalization minima

Mistarin · Feb 7, 2022 · 19d3a69 · 19d3a69
1 parent 10cda17
commit 19d3a69
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Showing 6 changed files with 16 additions and 10 deletions.
diff --git a/shaders/cColorNormalization.fx b/shaders/cColorNormalization.fx
@@ -66,7 +66,7 @@ void PostProcessVS(in uint ID : SV_VertexID, out float4 Position : SV_Position,
 
 /*
     Sources
-        Angle-Retaining Chromaticity  
+        Angle-Retaining Chromaticity
             Copyright 2020 Marco Buzzelli, Simone Bianco, Raimondo Schettini.
             If you use this code in your research, please cite:
             @article{buzzelli2020arc,
@@ -91,8 +91,9 @@ void PostProcessVS(in uint ID : SV_VertexID, out float4 Position : SV_Position,
 
 void NormalizationPS(in float4 Position : SV_Position, in float2 TexCoord : TEXCOORD0, out float3 OutputColor0 : SV_Target0)
 {
-	OutputColor0 = 0.0;
-    float3 Color = max(tex2D(_SampleColor, TexCoord).rgb, 1e-7);
+    OutputColor0 = 0.0;
+    const float Minima = ldexp(1.0, -8.0);
+    float3 Color = max(tex2D(_SampleColor, TexCoord).rgb, Minima);
     switch(_Select)
     {
         case 0:
@@ -113,8 +114,8 @@ void NormalizationPS(in float4 Position : SV_Position, in float2 TexCoord : TEXC
             break;
         case 4:
             // Jamie Wong's RG Chromaticity
-            OutputColor0 = Color / dot(Color, 1.0);
-            OutputColor0.rg = saturate(OutputColor0.rg / max(max(OutputColor0.r, OutputColor0.g), OutputColor0.b));
+            float3 NormalizedRGB = Color / dot(Color, 1.0);
+            OutputColor0.rg = saturate(NormalizedRGB.rg / max(max(NormalizedRGB.r, NormalizedRGB.g), NormalizedRGB.b));
             break;
         case 5:
             // Jamie Wong's RGB Chromaticity

diff --git a/shaders/cHornSchunck.fx b/shaders/cHornSchunck.fx
@@ -333,7 +333,8 @@ namespace HornSchunck
 
     void NormalizePS(in float4 Position : SV_Position, in float2 TexCoord : TEXCOORD0, out float2 OutputColor0 : SV_Target0)
     {
-        float3 Color = max(tex2D(_SampleColor, TexCoord).rgb, 1e-7);
+        const float Minima = ldexp(1.0, -8.0);
+        float3 Color = max(tex2D(_SampleColor, TexCoord).rgb, Minima);
         OutputColor0 = saturate(Color.xy / dot(Color, 1.0));
     }
 

diff --git a/shaders/cInterpolation.fx b/shaders/cInterpolation.fx
@@ -541,7 +541,8 @@ namespace Interpolation
 
     void NormalizePS(in float4 Position : SV_Position, in float2 TexCoord : TEXCOORD0, out float2 OutputColor0 : SV_Target0)
     {
-        float3 Color = max(tex2D(_SampleFrame0, TexCoord).rgb, 1e-7);
+        const float Minima = ldexp(1.0, -8.0);
+        float3 Color = max(tex2D(_SampleFrame0, TexCoord).rgb, Minima);
         OutputColor0 = saturate(Color.xy / dot(Color, 1.0));
     }
 

diff --git a/shaders/cMotionBlur.fx b/shaders/cMotionBlur.fx
@@ -519,7 +519,8 @@ namespace MotionBlur
 
     void NormalizePS(in float4 Position : SV_Position, in float2 TexCoord : TEXCOORD0, out float2 OutputColor0 : SV_Target0)
     {
-        float3 Color = max(tex2D(_SampleColor, TexCoord).rgb, 1e-7);
+        const float Minima = ldexp(1.0, -8.0);
+        float3 Color = max(tex2D(_SampleColor, TexCoord).rgb, Minima);
         OutputColor0 = saturate(Color.xy / dot(Color, 1.0));
     }
 

diff --git a/shaders/cOpticalFlow.fx b/shaders/cOpticalFlow.fx
@@ -628,7 +628,8 @@ namespace OpticalFlow
 
     void NormalizePS(in float4 Position : SV_Position, in float2 TexCoord : TEXCOORD0, out float2 OutputColor0 : SV_Target0)
     {
-        float3 Color = max(tex2D(_SampleColor, TexCoord).rgb, 1e-7);
+        const float Minima = ldexp(1.0, -8.0);
+        float3 Color = max(tex2D(_SampleColor, TexCoord).rgb, Minima);
         OutputColor0 = saturate(Color.xy / dot(Color, 1.0));
     }
 

diff --git a/shaders/kDatamosh.fx b/shaders/kDatamosh.fx
@@ -257,7 +257,8 @@ namespace DataMosh
 
     void ConvertPS(in float4 Position : SV_Position, in float2 TexCoord : TEXCOORD0, out float2 OutputColor0 : SV_Target0)
     {
-        float3 Color = max(tex2D(_SampleColor, TexCoord).rgb, 1e-7);
+        const float Minima = ldexp(1.0, -8.0);
+        float3 Color = max(tex2D(_SampleColor, TexCoord).rgb, Minima);
         OutputColor0 = saturate(Color.xy / dot(Color, 1.0));
     }