StandardPaint.shader

Shader "Custom/StandardPaint"
{
	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" }
		LOD 200
		
		CGPROGRAM
		#include "UnityCG.cginc"
		// Physically based Standard lighting model, and enable shadows on all light types
		#pragma surface surf Standard fullforwardshadows
		#pragma debug

		// Use shader model 3.0 target, to get nicer looking lighting
		#pragma target 3.0

		sampler2D _MainTex;


		struct Input 
		{
			float2 uv_MainTex;
		};

		half _Glossiness;
		half _Metallic;
		fixed4 _Color;

		void surf (Input IN, inout SurfaceOutputStandard o)
		 {
			// This lets us sample the unity_Lightmap texture properly, using the models main UVs.
			//fixed4 c = UNITY_SAMPLE_TEX2D (unity_Lightmap, IN.uv_MainTex.xy) * _Color;

			// This should create a per-pixel grayscale ramp that shows the interpolation of the X position in the Unity lightmap UVs.
			float4 c = float4(unity_LightmapST.xxx, 1);

			o.Albedo = c.rgb;
			// Metallic and smoothness come from slider variables
			o.Metallic = _Metallic;
			o.Smoothness = _Glossiness;
			o.Alpha = c.a;
		}
		ENDCG
	} 

	FallBack "Standard"
}