Cel Shading
セルシェーディング / 1990s– / Technique / Digital Image Techniques
Cel shading quantizes continuous 3D lighting into a few flat bands and may add contours, retaining spatial movement while making the surface read like animation cels or printed illustration.
Shadow split into two or three flat values / Strong outer and crease contours / Uniform color planes with restrained reflections / Three-dimensional motion beneath a drawn surface

Dictionary entry
- Best used for
- Giving 3D games and animation a readable drawn surface · Clarifying complex forms in diagrams and interactive exhibits
- Type
- Use headlines as strong as the contours and move small copy onto a flat field.
- Composition
- Choose an angle where silhouette and light-dark plane division remain clear.
- Material
- Quantize diffuse light to two to four bands, suppress reflection and draw only necessary silhouette and crease lines.
- Caution
- An outline around ordinary 3D shading is not cel shading. The lighting itself must become discrete planes.
- Further study
- Non-photorealistic rendering / Quantized diffuse lighting / Silhouette and crease lines
Related entries
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- https://indexstyle.org/styles/cel-shading
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- [Cel Shading — IndexStyle](https://indexstyle.org/styles/cel-shading)
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