// This can be used when the Camera Rendering Path is Forward.
Shader "Custom/drawDepthOnly"
{
	Properties
	{
		_Color ("Color", Color) = (1,1,1,1)
		_MainTex ("Albedo (RGB)", 2D) = "white" {}
		_Glossiness ("Smoothness", Range(0,1)) = 0.5
		_Metallic ("Metallic", Range(0,1)) = 0.0
	}
	SubShader
	{
		Tags { "RenderType"="opaque" "Queue"="geometry" }
		LOD 200
		ZWrite On       // Allow writing of depth
		ColorMask 0     // Do not use RGBA
				
		CGPROGRAM
		#pragma surface surf Standard fullforwardshadows
		#pragma target 3.0
				
		sampler2D _MainTex;

		struct Input
		{
			float2 uv_MainTex;
		};
				
		half _Glossiness;
		half _Metallic;
		fixed4 _Color;
				
		void surf (Input IN, inout SurfaceOutputStandard o)
		{
			fixed4 c = tex2D (_MainTex, IN.uv_MainTex) * _Color;
			o.Albedo = c.rgb;
			o.Metallic = _Metallic;
			o.Smoothness = _Glossiness;
			o.Alpha = c.a;
		}
		ENDCG
	}
	FallBack "Diffuse"
}