Added UtsEvaluateAngelRing;

Added UTSTonemapping;

Runtime/UTS Renderer/UTSToonmapping/UTSToonmapping.shader

@@ -0,0 +1,86 @@
+Shader "Hidden/Shader/UTSTonemapping"
+{
+    Properties
+    {
+        // This property is necessary to make the CommandBuffer.Blit bind the source texture to _MainTex
+        _MainTex("Main Texture", 2DArray) = "grey" {}
+    }
+
+    HLSLINCLUDE
+
+    #pragma target 4.5
+    #pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+    #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl"
+    #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"
+    #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariables.hlsl"
+    #include "Packages/com.unity.render-pipelines.high-definition/Runtime/PostProcessing/Shaders/FXAA.hlsl"
+    #include "Packages/com.unity.render-pipelines.high-definition/Runtime/PostProcessing/Shaders/RTUpscale.hlsl"
+
+    struct Attributes
+    {
+        uint vertexID : SV_VertexID;
+        UNITY_VERTEX_INPUT_INSTANCE_ID
+    };
+
+    struct Varyings
+    {
+        float4 positionCS : SV_POSITION;
+        float2 texcoord   : TEXCOORD0;
+        UNITY_VERTEX_OUTPUT_STEREO
+    };
+
+    Varyings Vert(Attributes input)
+    {
+        Varyings output;
+        UNITY_SETUP_INSTANCE_ID(input);
+        UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(output);
+        output.positionCS = GetFullScreenTriangleVertexPosition(input.vertexID);
+        output.texcoord = GetFullScreenTriangleTexCoord(input.vertexID);
+        return output;
+    }
+
+    TEXTURE2D_X(_MainTex);
+
+    inline float3 UTSToonmap(float3 x)
+    {
+        // See https://www.desmos.com/calculator/j4tpqazyfw
+        return (x * (2.63 * x + 0.03)) / (x * (2.11 * x + 0.72) + 0.31);
+    }
+
+    float4 CustomPostProcess(Varyings input) : SV_Target
+    {
+        UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
+
+        // Note that if HDUtils.DrawFullScreen is not used to render the post process, you don't need to call ClampAndScaleUVForBilinearPostProcessTexture.
+        float3 sourceColor = SAMPLE_TEXTURE2D_X(_MainTex, s_linear_clamp_sampler, ClampAndScaleUVForBilinearPostProcessTexture(input.texcoord.xy)).rgb;
+
+        float whiteScale = 1.0 / UTSToonmap(5.3);
+        float3 color = UTSToonmap(sourceColor * whiteScale);
+        color *= whiteScale;
+
+        return float4(color, 1);
+    }
+
+    ENDHLSL
+
+    SubShader
+    {
+        Tags{ "RenderPipeline" = "HDRenderPipeline" }
+        Pass
+        {
+            Name "UTSToonmapping"
+
+            ZWrite Off
+            ZTest Always
+            Blend Off
+            Cull Off
+
+            HLSLPROGRAM
+                #pragma fragment CustomPostProcess
+                #pragma vertex Vert
+            ENDHLSL
+        }
+    }
+    Fallback Off
+}