备份CatanBuilding瘦身独立工程

LocalPackages/SoftMaskForUGUI/Shaders/Resources/SoftMask.shader

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+Shader "Hidden/SoftMask" {
+
+	SubShader {
+		Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"}
+		LOD 100
+		
+		Cull Off
+		ZWrite Off
+		Blend SrcAlpha One
+		ColorMask [_ColorMask]
+
+		Pass {  
+			CGPROGRAM
+			#pragma vertex vert_img
+			#pragma fragment frag
+			#pragma target 2.0
+			
+			#include "UnityCG.cginc"
+
+			sampler2D _MainTex;
+			float _Softness;
+			float _Alpha;
+
+			fixed4 frag (v2f_img i) : SV_Target
+			{
+			    half softness = max(_Softness, 0.0001f);
+				return saturate(tex2D(_MainTex, i.uv).a/softness) * _Alpha;
+			}
+			ENDCG
+		}
+	}
+
+}