Shader "Custom/UnlitTransparent" {
    Properties {
        _MainTex ("Texture", 2D) = "white" {}
        _Color ("Color", Color) = (1,1,1,1)
        _Amount ("Expand", Range(0, 10)) = 1
    }

    SubShader {
        Tags { "RenderType" = "Transparent" "Queue" = "Transparent" "IgnoreProjector" = "True" "ForceNoShadowCasting" = "True" }
        LOD 100

        Cull Off
        ZWrite Off
        Blend SrcAlpha OneMinusSrcAlpha

        CGINCLUDE
        #include "UnityCG.cginc"

        sampler2D _MainTex;
        float4 _MainTex_ST;
        fixed4 _Color;
        float _Amount;

        struct v2f {
            float4 pos : SV_POSITION;
            float2 uv : TEXCOORD0;
        };

        v2f vert (appdata_full v) {
            v2f o;
            float4 pos = v.vertex;
            pos.xyz += v.normal * _Amount;
            o.pos = mul (UNITY_MATRIX_MVP, pos);
            o.uv = TRANSFORM_TEX (v.texcoord, _MainTex);
            return o;
        }

        fixed4 frag (v2f i) : SV_Target {
            return tex2D (_MainTex, i.uv) * _Color;
        }
        ENDCG

        Pass {
            Tags { "LightMode" = "ForwardBase" }
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            ENDCG
        }
    }
    Fallback Off
}