SwapTwo.shader

Shader "Custom/SwapTwo" {
     Properties
     {
         [PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
         _MainTex2 ("_MainTex2", 2D) = "white" {} 
         _Color ("Tint", Color) = (1,1,1,1)
         [MaterialToggle] PixelSnap ("Pixel snap", Float) = 0
     }
 
     SubShader
     {
         Tags
         { 
             "Queue"="Transparent" 
             "IgnoreProjector"="True" 
             "RenderType"="Transparent" 
             "PreviewType"="Plane"
             "CanUseSpriteAtlas"="True"
         }
 
         Cull Off
         Lighting Off
         ZWrite Off
         Blend One OneMinusSrcAlpha
 
         CGPROGRAM
         #pragma surface surf Lambert vertex:vert nofog keepalpha
         #pragma multi_compile _ PIXELSNAP_ON
         #pragma multi_compile _ ETC1_EXTERNAL_ALPHA
 
         sampler2D _MainTex;
         fixed4 _Color;
		 sampler2D _MainTex2;

         struct Input
         {
             float2 uv_MainTex;
             fixed4 color;
         };
         
         void vert (inout appdata_full v, out Input o)
         {
             #if defined(PIXELSNAP_ON)
             v.vertex = UnityPixelSnap (v.vertex);
             #endif
             
             UNITY_INITIALIZE_OUTPUT(Input, o);
             o.color = v.color * _Color;
         }
  
         void surf (Input IN, inout SurfaceOutput o)
         {		
			half4 c = tex2D (_MainTex2, IN.uv_MainTex) * IN.color;

			 o.Albedo = c.rgb * c.a;
             o.Alpha = c.a;
         }
         ENDCG
     }
 
 Fallback "Transparent/VertexLit"
 }