// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'

Shader "Outlined/Custom"
{
    Properties
    {
        _Color ("Main Color", Color) = (.5,.5,.5,1)
        _OutlineColor ("Outline Color", Color) = (0,0,0,1)
        _Outline ("Outline width", Range (0, 1)) = .1
        _MainTex ("Base (RGB)", 2D) = "white" { }
    }

    CGINCLUDE
    #include "UnityCG.cginc"

    struct appdata
    {
        float4 vertex : POSITION;
        float3 normal : NORMAL;
    };

    struct v2f
    {
        float4 pos : POSITION;
        float4 color : COLOR;
    };

    uniform float _Outline;
    uniform float4 _OutlineColor;
    uniform fixed4 _Color;

    v2f vert(appdata v) {
        v2f o;

        v.vertex *= (1 + _Outline);
        o.pos = UnityObjectToClipPos(v.vertex);
        o.color = _OutlineColor;

        return o;
    }
    ENDCG

    SubShader
    {
        CGPROGRAM
        #pragma target 3.0
        #pragma surface surf Lambert

        sampler2D _MainTex;

        struct Input
        {
            float2 uv_MainTex;
        };

        void surf(Input IN, inout SurfaceOutput o)
        {
            fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
            o.Albedo = c.rgb;
            o.Alpha = c.a * _Color.a;
        }

        ENDCG

        Pass
        {
            Name "OUTLINE"
            Tags
            {
                //"RenderType" = "Transparent"
                //"Queue" = "Overlay+1"
                "LightMode" = "Always"
            }
            Cull Front
            ZWrite On
            ColorMask RGB
            Blend SrcAlpha OneMinusSrcAlpha

            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag

            sampler2D _MainTex;

            half4 frag(v2f i) : COLOR
            {
                return i.color;
            }
            ENDCG
        }
    }

    SubShader
    {
        CGPROGRAM
        #pragma target 3.0
        #pragma surface surf Lambert

        sampler2D _MainTex;

        struct Input
        {
            float2 uv_MainTex;
        };

        void surf(Input IN, inout SurfaceOutput o)
        {
            fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
            o.Albedo = c.rgb;
            o.Alpha = c.a * _Color.a;
        }
        ENDCG

        Pass
        {
            Name "OUTLINE"
            Tags
            {
                //"RenderType" = "Transparent"
                //"Queue" = "Overlay+1"
                "LightMode" = "Always"
            }
            Cull Front
            ZWrite On
            ColorMask RGB
            Blend SrcAlpha OneMinusSrcAlpha

            CGPROGRAM
            #pragma target 3.0
            #pragma vertex vert
            #pragma exclude_renderers gles xbox360 ps3
            ENDCG

            SetTexture [_MainTex] { combine primary }
        }
    }

    Fallback "Diffuse"
}