Click the shader’s name or its preview to display its settings.

You will see the shader’s name appear to the right of the Texture triangle button.

On the Luminance tab, click the Texture triangle button and choose which Sketch shader you want to use (Art, Cel, Hatch or Spots) from Sketch.

In general, ensure all material channels are disabled except Luminance.

Double-click the material’s thumbnail to display its settings in the Material Editor (or access the settings using the Attribute Manager if you prefer).

In the Material Manager, choose Create / Materials / New Sketch Material to create a new material.

The post effect has some shading options which will affect the Cinema 4D rendering including the result of the Sketch shaders unless you switch off the options.

Keep the following in mind: The Sketch shaders are rendered by Cinema 4D, not by the post effect. You can load them into any material channel which accepts a texture, but generally they work best in the Luminance channel with all other channels such as Specular disabled. This is useful for creating halftone effects that are common on low-resolution prints.

With the Spots Shader, points (or any other element you want to use) shrink in correlation to the brightness of the surface. The Hatch Shader applies a freely definable hatch pattern based on any texture you select. Freely definable color gradients make it possible to create just about any look. The cell Shader combines Manga and Anime shading styles with quantized color shading. This Shader can turn a run-of-the-mill rendering into an abstract masterpiece. Uniform shading can be achieved by varying the surface and color of the sphere. The Art Shader uses a sphere to calculate the lighting and shading of a given object. Sketch and Toon comes with four powerful Channel Shaders: Art, Cel, Hatch and Spots Shader. Images © Artur Bala (1 & 3), Michael Welter (2), and Toshihide Miyata (4).

Cinema 4d r20 sketch and toon