TestSurfaceDecalBlendOneOne

Shader "Custom/TestSurfaceDecalBlend" {
	Properties {
		_Color("Main Color", Color) = (1,1,1,1)
		_MainTex("Base (RGB) Trans (A)", 2D) = "white" {}
		_BumpMap("Normalmap", 2D) = "bump" {}
		_BumpScale("Normalmap strength", Range(0.0, 10.0)) = 1.0
		_SpecGlossMap("Specular", 2D) = "black" {}
		//_SpecColor("SpecColor", Color) = (1,1,1,1)
		_Specular("Specular", Range(0.0, 1.0)) = 1.0
		_Gloss("Gloss", Range(0.0, 1.0)) = 1.0
	}
	SubShader {
		Tags { "RenderType" = "Opaque" "Queue" = "Geometry+1" "ForceNoShadowCasting" = "True" }
		LOD 200
		//Offset -1, -1

		//Blend SrcAlpha OneMinusSrcAlpha
		//Blend One One
		//Blend SrcColor OneMinusSrcColor
		//Blend SrcColor One

		GrabPass{ "_SharedGrabTexture" }

		CGPROGRAM
		// Physically based Standard lighting model, and enable shadows on all light types
		#pragma surface surf StandardSpecular vertex:vert decal:add //alpha:blend

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

		//sampler2D _SharedGrabTexture;

		sampler2D _MainTex;

		sampler2D _BumpMap;

		sampler2D _SpecGlossMap;

		float _Specular, _Gloss, _BumpScale;

		fixed4 _Color;

		struct Input {
			float2 uv_MainTex;
			float2 uv_BumpMap;
			float4 grabUV;
			float4 color: Color;
		};

		void vert(inout appdata_full v, out Input o) {
			float4 hpos = mul(UNITY_MATRIX_MVP, v.vertex);
			o.uv_MainTex = v.texcoord;
			o.uv_BumpMap = v.texcoord1;
			o.grabUV = ComputeGrabScreenPos(hpos);
			o.color = v.color;
		}

		void surf (Input IN, inout SurfaceOutputStandardSpecular o) {
			//fixed4 grab = tex2Dproj(_SharedGrabTexture, UNITY_PROJ_COORD(IN.grabUV))  * _Color;
			fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * IN.color * _Color;
			o.Albedo = c.rgb *  c.a;
			o.Alpha = c.a;
			o.Normal = UnpackScaleNormal(tex2D(_BumpMap, IN.uv_BumpMap), _BumpScale);
			half4 specGloss = tex2D(_SpecGlossMap, IN.uv_MainTex);

			o.Specular = specGloss.rgb *  c.a * _Specular;
			o.Smoothness = specGloss.a * _Gloss;
			//clip((c.a-0.5)*2);

		}
		ENDCG
	}
	FallBack "Decal/Transparent Diffuse"
}