Shader "Custom/Arrow"
{
  Properties 
  { 

  }
  SubShader
  {
    // Tags { "Queue" = "Transparent+10" } 
    // ZTest Always
    
    Pass 
    {
      // Fog { Mode Off } 
      // Blend OneMinusDstColor Zero 
      // ZWrite Off

      CGPROGRAM
      #pragma vertex vert
      #pragma fragment frag
      #include "UnityStandardBRDF.cginc"
      
      struct appdata
      {
        float4 position : POSITION;
        fixed3 normal : NORMAL;
      };

      struct v2f
      {
        float4 position : SV_POSITION;
        fixed3 normal : TEXCOORD1;
        fixed4 color : COLOR0;
      };

      v2f vert (appdata v)
      {
        v2f o;
        o.position = UnityObjectToClipPos(v.position);
        o.normal = UnityObjectToWorldNormal(v.normal);

        o.color = fixed4(1, 1, 1, 1) * clamp(dot(v.normal, fixed3(0.8, 1, 0.6)), 0.8, 1);
        // o.color += 
        return o;
      }
      half4 frag( v2f i ) : COLOR
      {
        return i.color;
      }
      ENDCG
    }
  }
}