Shader "Legacy Shaders/Reflective/VertexLit" {
Properties {
	_Color ("Main Color", Color) = (1,1,1,1)
	_ReflectColor ("Reflection Color", Color) = (1,1,1,0.5)
	_MainTex ("Base (RGB) RefStrength (A)", 2D) = "white" {} 
	_Cube ("Reflection Cubemap", Cube) = "_Skybox" {}
}
Category {
	Tags { "RenderType"="Opaque" }
	LOD 150
	
	SubShader {
	
		// First pass does reflection cubemap
		Pass { 
			Name "BASE"
			Tags {"LightMode" = "Always"}
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma target 2.0
#pragma multi_compile_fog
#include "UnityCG.cginc"

struct v2f {
	float4 pos : SV_POSITION;
	float2 uv : TEXCOORD0;
	float3 I : TEXCOORD1;
	UNITY_FOG_COORDS(2)
};

uniform float4 _MainTex_ST;

v2f vert(appdata_tan v)
{
	v2f o;
	o.pos = UnityObjectToClipPos(v.vertex);
	o.uv = TRANSFORM_TEX(v.texcoord,_MainTex);

	// calculate world space reflection vector	
	float3 viewDir = WorldSpaceViewDir( v.vertex );
	float3 worldN = UnityObjectToWorldNormal( v.normal );
	o.I = reflect( -viewDir, worldN );
	
	UNITY_TRANSFER_FOG(o,o.pos);
	return o; 
}

uniform sampler2D _MainTex;
uniform samplerCUBE _Cube;
uniform fixed4 _ReflectColor;

fixed4 frag (v2f i) : SV_Target
{
	fixed4 texcol = tex2D (_MainTex, i.uv);
	fixed4 reflcol = texCUBE( _Cube, i.I );
	reflcol *= texcol.a;
	fixed4 col = reflcol * _ReflectColor;
	UNITY_APPLY_FOG(i.fogCoord, col);
	UNITY_OPAQUE_ALPHA(col.a);
	return col;
} 
ENDCG
		}
		
		// Vertex Lit, emulated in shaders (4 lights max, no specular)
		Pass {
			Tags { "LightMode" = "Vertex" }
			Blend One One ZWrite Off
			Lighting On
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma target 2.0
#pragma multi_compile_fog

#include "UnityCG.cginc"

struct v2f {
	float2 uv : TEXCOORD0;
	UNITY_FOG_COORDS(1)
	fixed4 diff : COLOR0;
	float4 pos : SV_POSITION;
};

uniform float4 _MainTex_ST;
uniform float4 _Color;
uniform fixed4 _ReflectColor;

v2f vert (appdata_base v)
{
	v2f o;
	o.pos = UnityObjectToClipPos(v.vertex);
	o.uv = TRANSFORM_TEX(v.texcoord,_MainTex);
	float4 lighting = float4(ShadeVertexLightsFull(v.vertex, v.normal, 4, true),_ReflectColor.w);
	o.diff = lighting * _Color;
	UNITY_TRANSFER_FOG(o,o.pos);
	return o; 
}

uniform sampler2D _MainTex;

fixed4 frag (v2f i) : SV_Target
{
	fixed4 temp = tex2D (_MainTex, i.uv);	
	fixed4 c;
	c.xyz = temp.xyz * i.diff.xyz;
	c.w = temp.w * i.diff.w;
	UNITY_APPLY_FOG_COLOR(i.fogCoord, c, fixed4(0,0,0,0)); // fog towards black due to our blend mode
	UNITY_OPAQUE_ALPHA(c.a);
	return c;
} 
ENDCG
		}
		
		// Lightmapped
		Pass {
			Tags { "LightMode" = "VertexLM" }
			Blend One One ZWrite Off
			ColorMask RGB

			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
			#pragma target 2.0
			#pragma multi_compile_fog

			#include "UnityCG.cginc"

			struct v2f {
				half2 uv : TEXCOORD0;
				half2 uv2 : TEXCOORD1;
				UNITY_FOG_COORDS(2)
				float4 pos : SV_POSITION;
			};

			uniform float4 _MainTex_ST;
			uniform float4x4 unity_LightmapMatrix;

			v2f vert (float4 vertex : POSITION, float2 uv : TEXCOORD0, float2 uv2: TEXCOORD1)
			{
				v2f o;
				o.pos = UnityObjectToClipPos(vertex);
				o.uv = TRANSFORM_TEX(uv,_MainTex);
				o.uv2 = mul(unity_LightmapMatrix, float4(uv2,0,1)).xy;
				UNITY_TRANSFER_FOG(o,o.pos);
				return o;
			}

			uniform sampler2D _MainTex;
			uniform fixed4 _Color;

			fixed4 frag (v2f i) : SV_Target
			{
				fixed4 lm = UNITY_SAMPLE_TEX2D (unity_Lightmap, i.uv2) * _Color;
				fixed4 c = tex2D (_MainTex, i.uv);
				c.rgb *= lm.rgb * 2;
				UNITY_APPLY_FOG_COLOR(i.fogCoord, c, fixed4(0,0,0,0)); // fog towards black due to our blend mode
				UNITY_OPAQUE_ALPHA(c.a);
				return c;
			}
			ENDCG
		}
		
		// Lightmapped, encoded as RGBM
		Pass {
			Tags { "LightMode" = "VertexLMRGBM" }
			Blend One One ZWrite Off
			ColorMask RGB

			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
			#pragma target 2.0
			#pragma multi_compile_fog

			#include "UnityCG.cginc"

			struct v2f {
				half2 uv : TEXCOORD0;
				half2 uv2 : TEXCOORD1;
				UNITY_FOG_COORDS(2)
				float4 pos : SV_POSITION;
			};

			uniform float4 _MainTex_ST;
			uniform float4x4 unity_LightmapMatrix;

			v2f vert (float4 vertex : POSITION, float2 uv : TEXCOORD0, float2 uv2: TEXCOORD1)
			{
				v2f o;
				o.pos = UnityObjectToClipPos(vertex);
				o.uv = TRANSFORM_TEX(uv,_MainTex);
				o.uv2 = mul(unity_LightmapMatrix, float4(uv2,0,1)).xy;
				UNITY_TRANSFER_FOG(o,o.pos);
				return o;
			}

			uniform sampler2D _MainTex;
			uniform fixed4 _Color;

			fixed4 frag (v2f i) : SV_Target
			{
				fixed4 lm = UNITY_SAMPLE_TEX2D (unity_Lightmap, i.uv2);
				lm *= lm.a * 2;
				lm *= _Color;
				fixed4 c = tex2D (_MainTex, i.uv);
				c.rgb *= lm.rgb * 4;
				UNITY_APPLY_FOG_COLOR(i.fogCoord, c, fixed4(0,0,0,0)); // fog towards black due to our blend mode
				UNITY_OPAQUE_ALPHA(c.a);
				return c;
			}
			ENDCG
		}
	}
}

FallBack "Legacy Shaders/VertexLit"
}