How to occlude objects at a far distance?

I kept digging and found the PokeAHoleMaterial.  I definitely think this is the way to go as it seems exactly like how the HoloLens and Magic Leap do it.  But when I apply the PokeAHoleMaterial onto my objects, they just render black.  I'm going to circle back to this in a couple days and try again but if you have any points as to why PokeAHole is rendering black, I'd appreciate it.  Thanks.

Expanding on this: applying an opaque shader with a 0 alpha value to an object will make passthrough appear under that object. This is because Quest uses the eye buffer's (what you see) alpha channel to composite passthrough under your application. A shader doesn't need to be transparent/alpha blended to have an alpha value of 0. You just need to know where the column is to put an object with this shader there, and this could be done with the room scan mesh. 

This shader from the core SDK should do the trick: EDIT oops I always assume people use Unity :(

Shader "Punch Through Passthrough"
{
    Properties
    {
        _MainTex ("Texture", 2D) = "white" {}
    }
    SubShader
    {
        Tags {"Queue" = "Geometry"}
        ZWrite On
        Cull Off
        ZTest Always

        Blend Zero Zero

        Pass
        {
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag

            #include "UnityCG.cginc"

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

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

            sampler2D _MainTex;
            float4 _MainTex_ST;

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

            fixed4 frag (v2f i) : SV_Target
            {
                return fixed4(0, 0, 0, 0);
            }
            ENDCG
        }
    }
}