stencil portals pass 1 and 2

Assets/Portal/Assets/Materials/FullScreenDepth.mat

@@ -0,0 +1,30 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!21 &2100000
+Material:
+  serializedVersion: 8
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: FullScreenDepth
+  m_Shader: {fileID: 4800000, guid: c42e5c54ac1b498e8368dcc5fd6775ad, type: 3}
+  m_Parent: {fileID: 0}
+  m_ModifiedSerializedProperties: 0
+  m_ValidKeywords: []
+  m_InvalidKeywords: []
+  m_LightmapFlags: 4
+  m_EnableInstancingVariants: 0
+  m_DoubleSidedGI: 0
+  m_CustomRenderQueue: -1
+  stringTagMap: {}
+  disabledShaderPasses: []
+  m_LockedProperties: 
+  m_SavedProperties:
+    serializedVersion: 3
+    m_TexEnvs: []
+    m_Ints: []
+    m_Floats:
+    - _PortalNumber: 1
+    m_Colors: []
+  m_BuildTextureStacks: []

Assets/Portal/Assets/Materials/FullScreenDepth.mat.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 782cb59e6f5f438478bdd855cf549ff3
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 2100000
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Assets/Portal/Assets/Materials/FullScreenDepth.shader

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+Shader "Escape Room Engine/FullScreenDepth" {
+	Properties {
+        _PortalNumber ("Portal Number", Int) = 1
+	}
+	SubShader {
+		Pass
+		{
+            ColorMask 0
+		    Cull Off
+            ZWrite On
+			ZTest Always
+			
+            Stencil
+            {
+                Ref [_PortalNumber]
+                Comp Equal // pass if equal
+                Pass Keep // keep stencil value
+                Fail Keep // keep stencil if depth fails
+            }
+
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #include "UnityCG.cginc"
+
+            void vert(appdata_img v, out float4 pos : SV_POSITION)
+            {
+                #ifdef UNITY_REVERSED_Z
+                float far = 0.00001;
+                #else
+                float far = 0.99999;
+                #endif
+                pos = float4(v.vertex.xy * 2.0, far, 1); // quad xy goes from -0.5 to 0.5, clip space from -1 to 1
+            }
+
+            fixed4 frag() : SV_Target
+            {
+                return 0;
+            }
+            ENDCG
+		}
+	}
+}

Assets/Portal/Assets/Materials/FullScreenDepth.shader.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: c42e5c54ac1b498e8368dcc5fd6775ad
+timeCreated: 1682437235

Assets/Portal/Assets/Materials/PortalStencil.mat

@@ -0,0 +1,30 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!21 &2100000
+Material:
+  serializedVersion: 8
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: PortalStencil
+  m_Shader: {fileID: 4800000, guid: 5a680fbeb958dad4fa8edf79e5a609b5, type: 3}
+  m_Parent: {fileID: 0}
+  m_ModifiedSerializedProperties: 0
+  m_ValidKeywords: []
+  m_InvalidKeywords: []
+  m_LightmapFlags: 4
+  m_EnableInstancingVariants: 0
+  m_DoubleSidedGI: 0
+  m_CustomRenderQueue: -1
+  stringTagMap: {}
+  disabledShaderPasses: []
+  m_LockedProperties: 
+  m_SavedProperties:
+    serializedVersion: 3
+    m_TexEnvs: []
+    m_Ints: []
+    m_Floats:
+    - _PortalNumber: 1
+    m_Colors: []
+  m_BuildTextureStacks: []

Assets/Portal/Assets/Materials/PortalStencil.mat.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: f6db0041cc34fe9439de56d5d92c8b8d
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 2100000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Portal/Assets/Materials/PortalStencil.shader

@@ -0,0 +1,28 @@
+Shader "Escape Room Engine/PortalStencil"
+{
+    Properties
+    {
+        _PortalNumber ("Portal Number", Int) = 1
+    }
+
+    SubShader
+    {
+        Tags
+        {
+            "RenderType"="Opaque" "RenderPipeline" = "UniversalPipeline"
+        }
+
+        Pass
+        {
+            ColorMask 0
+
+            Stencil
+            {
+                Ref [_PortalNumber]
+                Comp Always // always pass
+                Pass Replace // set stencil value
+                Fail Keep // keep stencil if depth fails
+            }
+        }
+    }
+}

Assets/Portal/Assets/Materials/PortalStencil.shader.meta

@@ -0,0 +1,9 @@
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+guid: 5a680fbeb958dad4fa8edf79e5a609b5
+ShaderImporter:
+  externalObjects: {}
+  defaultTextures: []
+  nonModifiableTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: