Shader "Procedure/Time"  {
Category {
     Tags { "Queue"="Background" }

     SubShader {
  AlphaTest Off
     Cull Off Lighting Off ZWrite Off  
   
         Pass {
       Blend One Zero
             Name "BASE"
             Tags { "LightMode" = "Always" }
CGPROGRAM
#pragma target 3.0
#pragma fragment frag
#pragma vertex vert

    struct appdata_t{
                 float4 vertex : POSITION;
                 float2 texcoord: TEXCOORD0;
             };
             struct v2f {    
                 float4 hPosition : POSITION;
             };
     
#include "UnityShaderVariables.cginc"

             v2f vert(appdata_t v)
             {
                 v2f o;
                 o.hPosition = mul(UNITY_MATRIX_MVP, v.vertex);
                 return o;
             }
     
     float4 frag(v2f IN): COLOR0
     {
   return lerp(float4(0, 0, 0, 1), float4(1, 1, 1, 1), _SinTime.x);
     }
ENDCG
         } // end pass

     } // end subshader
} // end category
} // end shader