First Commit

Assets/Scripts/RenderPasses/Outline/Shaders/Compose.shader

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+Shader "Outline/Compose"
+{
+    Properties
+    {
+        _MainTex ("Texture", any) = "white" {}
+        _EdgeTex ("Edge Texture", 2D) = "white" {}
+    }
+    SubShader
+    {
+        Cull Off ZWrite Off ZTest Always
+
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert 
+            #pragma fragment frag
+            
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv : TEXCOORD0;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+
+            struct v2f
+            {
+                float4 vertex : SV_POSITION;
+                float2 uv0 : TEXCOORD0;
+                float2 uv1 : TEXCOORD1;
+                UNITY_VERTEX_INPUT_INSTANCE_ID 
+                UNITY_VERTEX_OUTPUT_STEREO
+            };
+
+            float2 _MainTex_TexelSize;
+
+            UNITY_DECLARE_SCREENSPACE_TEXTURE(_MainTex);
+            UNITY_DECLARE_SCREENSPACE_TEXTURE(_DefaultDrawObjects);
+            UNITY_DECLARE_SCREENSPACE_TEXTURE(_BlurTex);
+            UNITY_DECLARE_SCREENSPACE_TEXTURE(_TempTex);
+            UNITY_DECLARE_SCREENSPACE_TEXTURE(_EdgeTex);
+
+            uniform float EdgeValue;
+            
+            uniform float OffsetRedX;
+            uniform float OffsetGreenX;
+            uniform float OffsetBlueX;
+            uniform float OffsetRedY;
+            uniform float OffsetGreenY;
+            uniform float OffsetBlueY;
+
+            uniform float Brightness;
+            uniform float Contrast;
+
+            uniform float GlobalAlpha;
+
+            half4 _MainTex_ST;
+            half4 _EdgeTex_ST;
+
+            v2f vert (appdata v)
+            {
+                v2f o;
+                UNITY_SETUP_INSTANCE_ID(v);
+                UNITY_INITIALIZE_OUTPUT(v2f, o);
+                UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
+                
+                o.vertex = UnityObjectToClipPos(v.vertex);
+                o.uv0 = TRANSFORM_TEX(v.uv, _MainTex);
+                o.uv1 = TRANSFORM_TEX(v.uv, _MainTex);
+
+                #if UNITY_UV_STARTS_AT_TOP
+                if (_MainTex_TexelSize.y < 0)
+                    o.uv1.y = 1 - o.uv1.y;
+                #endif
+
+                return o;
+            }
+            
+            fixed4 frag (v2f i) : SV_Target
+            {                
+                EdgeValue = 1.0f;
+                UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
+                //
+                // Sample the world RT (render so far without our outline objects)
+                //
+                fixed4 world = UNITY_SAMPLE_SCREENSPACE_TEXTURE(_MainTex,
+                UnityStereoScreenSpaceUVAdjust(i.uv0, _MainTex_ST));
+                //
+                // Sample our outline texture
+                //
+                fixed4 outline = UNITY_SAMPLE_SCREENSPACE_TEXTURE(_BlurTex,
+                UnityStereoScreenSpaceUVAdjust(i.uv1, _MainTex_ST));
+                //
+                // Sample the solid render of the game object to be outlined
+                //
+                fixed4 gameObject = UNITY_SAMPLE_SCREENSPACE_TEXTURE(_DefaultDrawObjects,
+                UnityStereoScreenSpaceUVAdjust(i.uv1, _MainTex_ST));
+                
+                world.xyz = world + EdgeValue * (outline * (1.0 - gameObject.a));
+                return world;
+            }
+            ENDCG
+        }
+    }
+}