Shader "Custom/sample" {
       SubShader{
              Tags { "Queue" = "Transparent" }
              LOD 200
              CGPROGRAM
              #pragma surface surf Standard alpha:fade
              #pragma target 3.0
              struct Input {
                     float2 uv_MainTex;
              };
              void surf(Input IN, inout SurfaceOutputStandard o) {
                     o.Albedo = fixed4(0.9f, 0.9f, 0.9f, 1);
                     o.Alpha = 0.6;
              }
              ENDCG
       }
              FallBack "Diffuse"
}