Mr developed by unity3d realizes model occlusion and transparent ground receiving shadow

One 、 Realize the occlusion model of real scene

principle ： Build a patch and place it at the corresponding position to block the virtual model, and then make the patch transparent and not display

structure Shader Code , Will change shader Assign to material , Give the material to the patch that needs to block others . The following methods do not apply to baking .

effect ：

The code is as follows ：

Shader "Custom/mask"
{

    SubShader
    {
        Tags{ "RenderType" = "Opaque" "Queue" = "Geometry-3" }

        ColorMask 0
        ZWrite on

        CGINCLUDE
#include "UnityCG.cginc"

        struct appdata
    {
        float4 vertex : POSITION;
    };

    struct v2f
    {
        float4 pos : SV_POSITION;
    };

    v2f vert(appdata v)
    {
        v2f o;
        o.pos = UnityObjectToClipPos(v.vertex);