upd: dev

[Graphics]/StudyProject/Assets/Arts/00-Start.md

@@ -102,4 +102,3 @@ Shader "Unlit/MyShader"
     }
 }
 ```
-

[Graphics]/StudyProject/Assets/Arts/01-FrameWork.shader

@@ -22,6 +22,8 @@ Shader "victor/FrameWork"
 			{
 				// SV_POSITION 表示顶点在屏幕空间中的位置
 				float4 pos	:SV_POSITION;
+				// 除了 SV_POSITION 还有 TEXCOORD(高精度float) COLOR(低精度fixed) 等
+				// v2f 中的语义并不表示类型，只是表示精度区别
 			};
 
 			/*

[Graphics]/StudyProject/Assets/Arts/19.mat

@@ -30,5 +30,5 @@ Material:
     m_Ints: []
     m_Floats: []
     m_Colors:
-    - _Distort: {r: 0.31, g: 0.36, b: 0.06, a: 0}
+    - _Distort: {r: 0.8, g: -0.24, b: -0.03, a: 0}
   m_BuildTextureStacks: []

[Graphics]/StudyProject/Assets/Arts/20-UI_Shader.md

@@ -0,0 +1,9 @@
+# UI Shader
+
+1. 基础纹理采样
+
+2. 支持组件中的调色功能
+
+3. 遮罩支持
+
+4. 去色功能(扫光等)

[Graphics]/StudyProject/Assets/Arts/21-UIGray.shader

@@ -0,0 +1,53 @@
+// UI去色
+Shader "Unlit/UIGray"
+{
+    Properties
+    {
+        // UI 必须用内置的一些变量，关联贴图，对应 Source Image
+        // PerRendererData 配合 GetPropertyBlock/SetPropertyBlock 使用，用于统一修改全部用到该Shader的材质，此处设置后在面板中参数置灰，因为已经对应 Source Image
+        [PerRendererData]_MainTex("MainTex", 2D) = "white"{}
+    }
+    SubShader
+    {
+        Tags{"Queue" = "Transparent"}
+        // 固定使用此 Blend
+        Blend SrcAlpha OneMinusSrcAlpha
+
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv: TEXCOORD;
+            };
+
+            struct v2f
+            {
+                float4 pos: SV_POSITION;
+                float2 uv: TEXCOORD;
+            };
+
+            sampler2D _MainTex;
+
+            v2f vert (appdata v)
+            {
+               v2f o;
+               o.pos = UnityObjectToClipPos(v.vertex);
+               o.uv = v.uv;
+               return o;
+            }
+
+            fixed4 frag (v2f i): SV_TARGET
+            {
+                fixed4 mainTex = tex2D(_MainTex, i.uv);
+                return mainTex;
+            }
+            ENDCG
+        }
+    }
+}

[Graphics]/StudyProject/Assets/Arts/21.mat

@@ -0,0 +1,29 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!21 &2100000
+Material:
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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: 21
+  m_Shader: {fileID: 4800000, guid: 19d7c7f31213e471dab3caa866029574, type: 3}
+  m_Parent: {fileID: 0}
+  m_ModifiedSerializedProperties: 0
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+    m_TexEnvs: []
+    m_Ints: []
+    m_Floats: []
+    m_Colors: []
+  m_BuildTextureStacks: []

[Graphics]/StudyProject/Assets/Arts/22-Stencil.shader

@@ -0,0 +1,71 @@
+// 模版缓冲区、模版测试
+// 模版测试是基于模版缓冲区和自身区域值进行对比，如UI中的遮罩
+// 需要在mask节点上添加mask组件，指定为遮罩
+// 模版测试公式：
+// (Ref & ReadMask) Comp (StencilBufferValue & ReadMask)
+// Ref 为Shader中自定义的值，StencilBufferValue 为模版缓冲区中的值
+
+Shader "Unlit/Stencil"
+{
+    Properties
+    {
+        [PerRendererData]_MainTex("MainTex", 2D) = "white"{}
+        // 模版测试参数
+        _Ref("Stencil Ref", int) = 0
+        [Enum(UnityEngine.Rendering.CompareFunction)]_StencilComp("Stencil Comp", int) = 0
+        [Enum(UnityEngine.Rendering.StencilOp)]_StencilOp("Stencil OP", int) = 0
+    }
+    SubShader
+    {
+        Tags{"Queue" = "Transparent"}
+        Blend SrcAlpha OneMinusSrcAlpha
+
+        // 模版测试
+        Stencil {
+            Ref [_Ref] // 0 1
+            // ReadMask
+            // WriteMask
+            Comp [_StencilComp] // Equal
+            Pass [_StencilOp] // Keep
+            // Fail
+            // ZFail
+        }
+
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv: TEXCOORD;
+            };
+
+            struct v2f
+            {
+                float4 pos: SV_POSITION;
+                float2 uv: TEXCOORD;
+            };
+
+            sampler2D _MainTex;
+
+            v2f vert (appdata v)
+            {
+               v2f o;
+               o.pos = UnityObjectToClipPos(v.vertex);
+               o.uv = v.uv;
+               return o;
+            }
+
+            fixed4 frag (v2f i): SV_TARGET
+            {
+                fixed4 mainTex = tex2D(_MainTex, i.uv);
+                return mainTex;
+            }
+            ENDCG
+        }
+    }
+}

[Graphics]/StudyProject/Assets/Arts/22.mat

@@ -0,0 +1,36 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!21 &2100000
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+  m_ObjectHideFlags: 0
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+  m_PrefabInstance: {fileID: 0}
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[Graphics]/StudyProject/Assets/Arts/23-ColorMask.shader

@@ -0,0 +1,65 @@
+// 颜色遮罩，对颜色缓冲区的值过滤
+
+Shader "Unlit/ColorMask"
+{
+    Properties
+    {
+        [PerRendererData]_MainTex("MainTex", 2D) = "white"{}
+        _Ref("Stencil Ref", int) = 0
+        [Enum(UnityEngine.Rendering.CompareFunction)]_StencilComp("Stencil Comp", int) = 0
+        [Enum(UnityEngine.Rendering.StencilOp)]_StencilOp("Stencil OP", int) = 0
+    }
+    SubShader
+    {
+        Tags{"Queue" = "Transparent"}
+        Blend SrcAlpha OneMinusSrcAlpha
+
+        // ColorMask
+        // ColorMask 0 // 什么都不显示
+        // ColorMask RGBA // RGBA的任意组合
+        ColorMask R // RGBA的任意组合
+
+        Stencil {
+            Ref [_Ref]
+            Comp [_StencilComp]
+            Pass [_StencilOp]
+        }
+
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv: TEXCOORD;
+            };
+
+            struct v2f
+            {
+                float4 pos: SV_POSITION;
+                float2 uv: TEXCOORD;
+            };
+
+            sampler2D _MainTex;
+
+            v2f vert (appdata v)
+            {
+               v2f o;
+               o.pos = UnityObjectToClipPos(v.vertex);
+               o.uv = v.uv;
+               return o;
+            }
+
+            fixed4 frag (v2f i): SV_TARGET
+            {
+                fixed4 mainTex = tex2D(_MainTex, i.uv);
+                return mainTex;
+            }
+            ENDCG
+        }
+    }
+}

[Graphics]/StudyProject/Assets/Arts/23.mat

@@ -0,0 +1,36 @@
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