Reorganization to work with Unity project

Assets/Shaders/DecalPaint.shader

@@ -0,0 +1,80 @@
+Shader "ConformalDecals/Paint/Diffuse"
+{
+	Properties 
+	{
+		_Decal ("Cookie", 2D) = "gray" {}
+		_BumpMap("_BumpMap", 2D) = "bump" {}
+		
+	    _Cutoff ("Alpha cutoff", Range(0,1)) = 0.5
+		_Opacity("_Opacity", Range(0,1) ) = 1
+		_NormalWear("_NormalWear", Range(0,100)) = 50
+	}
+	
+	SubShader 
+	{
+		Tags { "Queue" = "Geometry" }
+
+		ZWrite On
+		ZTest LEqual
+		Blend SrcAlpha OneMinusSrcAlpha  
+
+		CGPROGRAM
+
+		#pragma surface surf Lambert alpha vertex:vert
+		#pragma target 4.0
+
+		float4x4 _ProjectionMatrix;
+		float3 _DecalNormal;
+		float3 _DecalBiNormal;
+		
+		sampler2D _Decal;
+		sampler2D _DecalBumpMap;
+		sampler2D _BumpMap;
+		
+        float _Cutoff;
+		float _Opacity;
+		float _NormalWear;
+
+		struct Input
+		{
+			float4 decal : TEXCOORD0;
+			float2 uv_BumpMap : TEXCOORD1;
+			float4 position : SV_POSITION;
+			float3 normal : NORMAL;
+		};
+
+		void vert (inout appdata_full v, out Input o) {
+			o.decal = mul (_ProjectionMatrix, v.vertex);
+			o.uv_BumpMap = v.texcoord.xy;
+            o.position = UnityObjectToClipPos(v.vertex);
+            o.normal = v.normal;
+		}
+
+		void surf (Input IN, inout SurfaceOutput o)
+		{
+			fixed4 projUV = UNITY_PROJ_COORD(IN.decal);
+
+			// since I cant easily affect the clamping mode in KSP, do it here
+			clip(projUV.xyz);
+			clip(1-projUV.xyz);
+			
+			// clip backsides
+			clip(dot(_DecalNormal, IN.normal));
+
+			float4 color = tex2D(_Decal, projUV);
+			float3 normal = UnpackNormal(tex2D(_BumpMap, IN.uv_BumpMap));
+			
+			color.a *= (1 - (_NormalWear * (1 - dot(normal, fixed3(0,0,1)))));
+			clip (color.a - _Cutoff);
+			
+			fixed2 normalGradient = fixed2(ddx(normal.z), ddy(normal.z));
+
+			o.Albedo = color.rgb;
+			//o.Albedo = projUV;
+			o.Normal = normal;
+			o.Alpha = color.a * _Opacity;
+		}
+
+		ENDCG
+	}
+}