+add Test Trail Effect to Main Character

Assets/Resources/Effects/Trail.prefab

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Assets/Resources/Effects/Trail.shader

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+Shader "Pal3/Effect/Trail"
+{
+    Properties
+    {
+        _MainTex ("Texture", 2D) = "white" {}
+    }
+    SubShader
+    {
+        Tags { "RenderType"="Opaque" }
+        LOD 100
+        Cull Back
+
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+
+
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv : TEXCOORD0;
+            };
+
+            struct v2f
+            {
+                float2 uv : TEXCOORD0;
+                float4 vertex : SV_POSITION;
+            };
+
+            sampler2D _MainTex;
+            float4 _MainTex_ST;
+
+            v2f vert (appdata v)
+            {
+                v2f o;
+                o.vertex = UnityObjectToClipPos(v.vertex);
+                o.uv = TRANSFORM_TEX(v.uv, _MainTex);
+
+                return o;
+            }
+
+            fixed4 frag (v2f i) : SV_Target
+            {
+                // sample the texture
+                // fixed4 col = tex2D(_MainTex, i.uv);
+                return fixed4(i.uv,0.0,1.0);
+                //return col;
+            }
+            ENDCG
+        }
+    }
+}

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