Unity关于模型出现部分区域材质显示内外翻转的解决方案

不多比比，先丢代码。Unity Shader 

Shader "Custom/DoubleSided"
{
    Properties
    {
        _MainTex ("Main Texture", 2D) = "white" {}
        _Color ("Color", Color) = (1,1,1,1)
        _Glossiness ("Smoothness", Range(0,1)) = 0.5
        _Metallic ("Metallic", Range(0,1)) = 0.0
    }
    SubShader
    {
        Tags { "RenderType"="Opaque" }
        LOD 200
        
        // Disable culling to render both sides
        Cull Off

        CGPROGRAM
        #pragma surface surf Standard fullforwardshadows addshadow

        sampler2D _MainTex;
        fixed4 _Color;
        half _Glossiness;
        half _Metallic;

        struct Input
        {
            float2 uv_MainTex;
            float3 viewDir;
            INTERNAL_DATA
        };

        void surf (Input IN, inout SurfaceOutputStandard o)
        {
            fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
            o.Albedo = c.rgb;
            o.Metallic = _Metallic;
            o.Smoothness = _Glossiness;
            o.Alpha = c.a;
        }
        ENDCG
    }
    FallBack "Diffuse"
}

下面描述问题：

此图为从外侧看，本应显示在外侧的材质没有被正常渲染

此图为从内侧看，未被正常渲染的材质在内测却能正常渲染

解决步骤：

1.创建unity shader文件，将上述代码复制粘贴进来

2.创建材质Material，选择上面shader的渲染方式

3.将材质赋值给模型即可