Wrapped diffuse Surface Shader example in the Built-In Render Pipeline

The following example shows Wrapped Diffuse, a modification of Diffuse lighting where illumination “wraps around” the edges of objects. It’s useful for simulating subsurface scattering effects. Only the CGPROGRAM section changes, so once again, the surrounding Shader code is omitted:

    ...ShaderLab code...
    CGPROGRAM
    #pragma surface surf WrapLambert

    half4 LightingWrapLambert (SurfaceOutput s, half3 lightDir, half atten) {
        half NdotL = dot (s.Normal, lightDir);
        half diff = NdotL * 0.5 + 0.5;
        half4 c;
        c.rgb = s.Albedo * _LightColor0.rgb * (diff * atten);
        c.a = s.Alpha;
        return c;
    }

    struct Input {
        float2 uv_MainTex;
    };
    
    sampler2D _MainTex;
        void surf (Input IN, inout SurfaceOutput o) {
        o.Albedo = tex2D (_MainTex, IN.uv_MainTex).rgb;
    }
    ENDCG
    ...ShaderLab code...

Here’s how it looks like with a Texture and without a Texture, with one directional Light in the Scene: