June 2018
Intermediate to advanced
392 pages
8h 57m
English
Content preview from Unity 2018 Shaders and Effects Cookbook - Third Edition
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How it works...
The main characteristic of toon shading is the way the light is rendered; surfaces are not shaded uniformly. To achieve this effect, we need a ramp map. Its purpose is to remap the Lambertian light intensity NdotL to another value. Using a ramp map without a gradient, we can force the lighting to be rendered in steps. The following diagram shows how the ramp map is used to correct the light intensity: