Shader "Unlit/EyeBeacon"
{
    Properties
    {
    }
    SubShader
    {
        //Tags {"RenderType"="Transparent" "Queue"="Transparent"}
        Tags {
            "RenderType"="Opaque"
            "Queue"="Geometry"
            }
        Cull Off
        Blend One One

        Pass
        {
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            // make fog work
            #pragma multi_compile_fog

            #include "UnityCG.cginc"

            struct appdata
            {
                float4 vertex : POSITION;
                float2 uv : TEXCOORD0;
                float4 color : COLOR;
            };

            struct v2f
            {
                float2 uv : TEXCOORD0;
                UNITY_FOG_COORDS(1)
                float4 vertex : SV_POSITION;
                float4 color : COLOR;
            };

            v2f vert (appdata v)
            {
                v2f o;
                o.vertex = v.vertex;
                o.color = v.color;
                o.uv = v.uv;
                UNITY_TRANSFER_FOG(o,o.vertex);
                return o;
            }

            fixed4 frag (v2f i) : SV_Target
            {
                fixed4 col = i.color;
                col.a = i.color.r;
                return col;
            }
            ENDCG
        }
    }
    Fallback "Diffuse"
}