v1.11.0 - Stencils

Added Stencil Writer and Stencil Target

Author: FragileDeviations

Assets/Shaders/StencilTarget.shader

@@ -0,0 +1,85 @@
+Shader "Mabel/Stencils/Stencil Target"
+{
+    Properties
+    {
+        _BaseColor ("Base Color", Color) = (1,1,1,1)
+        _MainTex ("Texture", 2D) = "white" {}
+    }
+
+    SubShader
+    {
+        Tags { "RenderType"="Transparent" "Queue"="Overlay+1" }
+
+        Stencil
+        {
+            Ref 1
+            Comp Equal
+            Pass Keep
+            Fail Keep
+            ZFail Keep
+        }
+
+        ZTest LEqual
+        ZWrite On
+        Cull Off
+        Blend SrcAlpha OneMinusSrcAlpha
+
+        Pass
+        {
+            HLSLPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+			#pragma multi_compile _ UNITY_SINGLE_PASS_STEREO STEREO_INSTANCING_ON STEREO_MULTIVIEW_ON
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv : TEXCOORD0;
+
+                UNITY_VERTEX_INPUT_INSTANCE_ID // For instance ID support
+            };
+
+            struct v2f
+            {
+                float2 uv : TEXCOORD0;
+                float4 vertex : SV_POSITION;
+
+                UNITY_VERTEX_OUTPUT_STEREO // For stereo rendering support
+            };
+
+            sampler2D _MainTex;
+            float4 _BaseColor;
+
+            // Vertex shader
+            v2f vert(appdata v)
+            {
+                v2f o;
+
+                // Handle instancing
+				UNITY_SETUP_INSTANCE_ID(v);
+				UNITY_INITIALIZE_OUTPUT(v2f, o);
+                UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
+
+                // Apply the correct transformation for stereo rendering
+                o.vertex = UnityObjectToClipPos(v.vertex);
+
+                o.uv = v.uv;
+
+                return o;
+            }
+
+            // Fragment shader
+            float4 frag(v2f i) : SV_Target
+            {
+                // Sample texture and apply color
+                float4 texColor = tex2D(_MainTex, i.uv);
+                return texColor * _BaseColor;
+            }
+
+            ENDHLSL
+        }
+    }
+
+    FallBack Off
+}

Assets/Shaders/StencilTarget.shader.meta

@@ -0,0 +1,78 @@
+Shader "Mabel/Stencils/Stencil Writer"
+{
+    Properties
+    {
+        _Color ("Color", Color) = (1,1,1,1)
+        [PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
+    }
+    SubShader
+    {
+        Tags { "Queue"="Overlay" "RenderType"="Transparent" }
+
+        Stencil
+        {
+            Ref 1
+            Comp always
+            Pass replace
+        }
+
+        Cull Off
+        ZWrite Off
+        Blend SrcAlpha OneMinusSrcAlpha
+
+        Pass
+        {
+            HLSLPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #pragma multi_compile _ UNITY_SINGLE_PASS_STEREO STEREO_INSTANCING_ON STEREO_MULTIVIEW_ON
+            #include "UnityCG.cginc"
+
+            sampler2D _MainTex;
+            fixed4 _Color;
+            float4 _MainTex_ST;
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv : TEXCOORD0;
+
+                UNITY_VERTEX_INPUT_INSTANCE_ID // Support for instancing
+            };
+
+            struct v2f
+            {
+                float2 uv : TEXCOORD0;
+                float4 pos : SV_POSITION;
+
+                UNITY_VERTEX_OUTPUT_STEREO // Ensure stereo support
+            };
+
+            v2f vert(appdata v)
+            {
+                v2f o;
+
+                // Setup instance data if required
+                UNITY_SETUP_INSTANCE_ID(v);
+                UNITY_INITIALIZE_OUTPUT(v2f, o);
+                UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
+
+                // Apply transformation for stereo rendering
+                o.pos = UnityObjectToClipPos(v.vertex);
+
+                o.uv = TRANSFORM_TEX(v.uv, _MainTex);
+
+                return o;
+            }
+
+            fixed4 frag(v2f i) : SV_Target
+            {
+                return tex2D(_MainTex, i.uv) * _Color;
+            }
+
+            ENDHLSL
+        }
+    }
+
+    FallBack Off
+}

Assets/Shaders/StencilWriter.shader

@@ -1,3 +1,10 @@
+# v1.11.0
+## Added Shaders
+### Stencil Writer
+* Only objects with the Stencil Target shader will be visible through this shader
+### Stencil Target
+* Only visible through Stencil Writers
+
 # v1.10.1
 ## Changed Shaders
 ### SLZ Toon

Assets/Shaders/StencilWriter.shader.meta

@@ -53,4 +53,10 @@
 ## SLZ Toon
 ### Difference from SLZ Anime
 * Emissive map support
-* No specular highlights, a real toon shader wouldn't be reflective
+* No specular highlights, a real toon shader wouldn't be reflective
+
+## Stencils
+### Stencil Writer
+* Stencil Targets are visible through objects with this shader
+### Stencil Target
+* Only visible within Stencil Writers