Toon shading Surface Shader example in the Built-In Render Pipeline

The following example shows a “Ramp” lighting model that uses a Texture ramp to define how surfaces respond to the angles between the light and the normal. This can be used for a variety of effects, and is especially effective when used with Toon lighting.

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

    sampler2D _Ramp;

    half4 LightingRamp (SurfaceOutput s, half3 lightDir, half atten) {
        half NdotL = dot (s.Normal, lightDir);
        half diff = NdotL * 0.5 + 0.5;
        half3 ramp = tex2D (_Ramp, float2(diff)).rgb;
        half4 c;
        c.rgb = s.Albedo * _LightColor0.rgb * ramp * 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 SceneA Scene contains the environments and menus of your game. Think of each unique Scene file as a unique level. In each Scene, you place your environments, obstacles, and decorations, essentially designing and building your game in pieces. More info
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