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Assets/Alloy/Shaders/Deferred/Decode.cginc

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+// Alloy Physical Shader Framework
+// Copyright 2013-2017 RUST LLC.
+// http://www.alloy.rustltd.com/
+
+/////////////////////////////////////////////////////////////////////////////////
+/// @file Decode.cginc
+/// @brief Deferred decode light buffer pass vertex & fragment shaders.
+/////////////////////////////////////////////////////////////////////////////////
+
+#ifndef ALLOY_SHADERS_DEFERRED_DECODE_CGINC
+#define ALLOY_SHADERS_DEFERRED_DECODE_CGINC
+
+sampler2D _LightBuffer;
+
+struct AFragmentInput {
+    float4 vertex : SV_POSITION;
+    float2 texcoord : TEXCOORD0;
+};
+
+AFragmentInput aMainVertexShader(
+    float4 vertex : POSITION, 
+    float2 texcoord : TEXCOORD0)
+{
+    AFragmentInput o;
+    o.vertex = UnityObjectToClipPos(vertex);
+    o.texcoord = texcoord.xy;
+#ifdef UNITY_SINGLE_PASS_STEREO
+    o.texcoord = TransformStereoScreenSpaceTex(o.texcoord, 1.0f);
+#endif
+    return o;
+}
+
+fixed4 aMainFragmentShader(
+    AFragmentInput i) : SV_Target
+{
+    return -log2(tex2D(_LightBuffer, i.texcoord));
+}
+
+#endif // ALLOY_SHADERS_DEFERRED_DECODE_CGINC