Pass
{
    Tags{"Lightmode" = "ShadowCaster"}

    ZWrite On ZTest LEqual

    CGPROGRAM
    #pragma target 2.0
    #pragma vertex ShadowPassVertex
    #pragma fragment ShadowPassFragment

    #include "UnityCG.cginc"
    #include "LightweightPassShadow.cginc"
    ENDCG
}

Pass
{
    Tags{"Lightmode" = "DepthOnly"}

    ZWrite On

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

    #include "UnityCG.cginc"

    float4 vert(float4 pos : POSITION) : SV_POSITION
    {
        return UnityObjectToClipPos(pos);
    }

    half4 frag() : SV_TARGET
    {
        return 0;
    }
    ENDCG
}