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Shader "Custom/Blur"
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{
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Properties
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{
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[PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
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_Color ("Tint", Color) = (1,1,1,0.2)
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_BlurSize ("Blur Size", Float) = 5
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_BlurQuality ("Blur Quality", Float ) = 5
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_BlurStrength ("Blur Strength", Float) = 1.2
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// 新增：FairyGUI的Stencil属性（模板测试用）
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_StencilComp ("Stencil Comparison", Float) = 8
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_Stencil ("Stencil ID", Float) = 0
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_StencilOp ("Stencil Operation", Float) = 0
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_StencilWriteMask ("Stencil Write Mask", Float) = 255
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_StencilReadMask ("Stencil Read Mask", Float) = 255
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// 新增：FairyGUI的颜色遮罩和混合模式属性
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_ColorMask ("Color Mask", Float) = 15
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_BlendSrcFactor ("Blend SrcFactor", Float) = 5
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_BlendDstFactor ("Blend DstFactor", Float) = 10
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}
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SubShader
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{
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Tags {
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"Queue"="Transparent"
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"IgnoreProjector"="True"
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"RenderType"="Transparent"
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"PreviewType"="Plane"
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"CanUseSpriteAtlas"="True"
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}
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// 新增：Stencil模板测试（关键，实现列表边框遮罩）
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Stencil
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{
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Ref [_Stencil]
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Comp [_StencilComp]
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Pass [_StencilOp]
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ReadMask [_StencilReadMask]
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WriteMask [_StencilWriteMask]
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}
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// 统一FairyGUI的渲染状态
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Cull Off
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Lighting Off
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ZWrite Off
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Fog { Mode Off }
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Blend [_BlendSrcFactor] [_BlendDstFactor], One One // 替换原有Blend
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ColorMask [_ColorMask] // 新增颜色遮罩
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Pass
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{
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CGPROGRAM
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#pragma multi_compile NOT_CLIPPED CLIPPED SOFT_CLIPPED ALPHA_MASK // 新增：FairyGUI裁剪宏
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#pragma vertex vert
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#pragma fragment frag
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#include "UnityCG.cginc"
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sampler2D _MainTex;
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float4 _MainTex_TexelSize;
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fixed4 _Color;
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float _BlurSize;
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int _BlurQuality;
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float _BlurStrength;
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// 新增：FairyGUI裁剪参数（和Image shader一致）
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#ifdef CLIPPED
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float4 _ClipBox = float4(-2, -2, 0, 0); // 裁剪区域
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#endif
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#ifdef SOFT_CLIPPED
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float4 _ClipBox = float4(-2, -2, 0, 0); // 软裁剪区域
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float4 _ClipSoftness = float4(0, 0, 0, 0); // 软裁剪过渡
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#endif
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struct appdata_t
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{
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float4 vertex : POSITION;
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float4 color : COLOR;
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float2 texcoord : TEXCOORD0;
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};
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struct v2f
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{
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float4 vertex : SV_POSITION;
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fixed4 color : COLOR;
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float2 texcoord : TEXCOORD0;
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// 新增：裁剪坐标（用于FairyGUI裁剪计算）
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#ifdef CLIPPED
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float2 clipPos : TEXCOORD1;
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#endif
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#ifdef SOFT_CLIPPED
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float2 clipPos : TEXCOORD1;
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#endif
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};
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v2f vert(appdata_t IN)
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{
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v2f OUT;
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OUT.vertex = UnityObjectToClipPos(IN.vertex);
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OUT.texcoord = IN.texcoord;
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// 新增：颜色空间转换（和FairyGUI保持一致）
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#if !defined(UNITY_COLORSPACE_GAMMA) && (UNITY_VERSION >= 550)
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OUT.color.rgb = GammaToLinearSpace(IN.color.rgb) * _Color.rgb;
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OUT.color.a = IN.color.a * _Color.a;
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#else
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OUT.color = IN.color * _Color;
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#endif
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// 新增：计算裁剪坐标（FairyGUI裁剪逻辑）
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#ifdef CLIPPED
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OUT.clipPos = mul(unity_ObjectToWorld, IN.vertex).xy * _ClipBox.zw + _ClipBox.xy;
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#endif
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#ifdef SOFT_CLIPPED
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OUT.clipPos = mul(unity_ObjectToWorld, IN.vertex).xy * _ClipBox.zw + _ClipBox.xy;
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#endif
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return OUT;
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}
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// 高斯模糊权重计算（保留原有功能）
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float GaussianWeight(int x, int y, float sigma)
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{
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return exp(-(x*x + y*y) / (2.0 * sigma * sigma)) / (2.0 * 3.14159 * sigma * sigma);
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}
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fixed4 frag(v2f IN) : SV_Target
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{
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float2 uv = IN.texcoord;
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fixed4 col = fixed4(0,0,0,0);
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// 高斯模糊计算（保留）
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float totalWeight = 0.0;
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float sigma = _BlurQuality * _BlurStrength;
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int range = _BlurQuality * 2;
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for (int x = -range; x <= range; x++)
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{
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for (int y = -range; y <= range; y++)
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{
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float weight = GaussianWeight(x, y, sigma);
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totalWeight += weight;
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float2 offset = float2(x, y) * _BlurSize * _MainTex_TexelSize.xy;
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col += tex2D(_MainTex, uv + offset) * weight;
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}
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}
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col /= totalWeight;
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// 新增：FairyGUI裁剪逻辑（关键，适配列表边框裁剪）
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#ifdef CLIPPED
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float2 factor = abs(IN.clipPos);
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if (max(factor.x, factor.y) > 1) col.a = 0; // 硬裁剪
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#endif
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#ifdef SOFT_CLIPPED
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float2 factor = float2(0,0);
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if (IN.clipPos.x < 0) factor.x = (1.0 - abs(IN.clipPos.x)) * _ClipSoftness.x;
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else factor.x = (1.0 - IN.clipPos.x) * _ClipSoftness.z;
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if (IN.clipPos.y < 0) factor.y = (1.0 - abs(IN.clipPos.y)) * _ClipSoftness.w;
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else factor.y = (1.0 - IN.clipPos.y) * _ClipSoftness.y;
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col.a *= clamp(min(factor.x, factor.y), 0.0, 1.0); // 软裁剪
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#endif
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#ifdef ALPHA_MASK
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clip(col.a - 0.001); // 透明通道裁剪
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#endif
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// 应用颜色 tint（和FairyGUI颜色处理保持一致）
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col.rgb *= IN.color.rgb;
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return col;
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}
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ENDCG
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}
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}
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}
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