Shader "Custom/LightweightPipeline/CustomParticleData"
{
    Properties
    {
        _Color("Color", Color) = (1,1,1,1)
    }
    SubShader
    {
        Tags { "RenderType" = "Opaque" "IgnoreProjectors" = "True" }
        LOD 100

        Blend SrcAlpha OneMinusSrcAlpha

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

            #include "UnityCG.cginc"

            struct appdata
            {
                float4 vertex : POSITION;
                float4 uv : TEXCOORD0;
                float3 uv2 : TEXCOORD1;
            };

            struct v2f
            {
                float4 uv : TEXCOORD0;
                float3 uv2 : TEXCOORD1;

                UNITY_FOG_COORDS(1)
                float4 vertex : SV_POSITION;
            };

            v2f vert (appdata v)
            {
                v2f o;
                o.vertex = UnityObjectToClipPos(v.vertex);
                o.uv = v.uv;
                o.uv2 = v.uv2;
                UNITY_TRANSFER_FOG(o,o.vertex);
                return o;
            }

            fixed4 frag (v2f i) : SV_Target
            {
                // sample the texture
                fixed4 col = float4(i.uv.zw, i.uv2.x, 1);
                // apply fog
                UNITY_APPLY_FOG(i.fogCoord, col);
                return col;
            }
            ENDCG
        }
    }
}