2D Shading for Cel Animation
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Date
2018
Journal Title
Journal ISSN
Volume Title
Publisher
ACM
Abstract
We present a semi-automatic method for creating shades and self-shadows in cel animation. Besides producing attractive images, shades and shadows provide important visual cues about depth, shapes, movement and lighting of the scene. In conventional cel animation, shades and shadows are drawn by hand. As opposed to previous approaches, this method does not rely on a complex 3D reconstruction of the scene: its key advantages are simplicity and ease of use. The tool was designed to stay as close as possible to the natural 2D creative environment and therefore provides an intuitive and user-friendly interface. Our system creates shading based on hand-drawn objects or characters, given very limited guidance from the user. The method employs simple yet very efficient algorithms to create shading directly out of drawn strokes. We evaluate our system through a subjective user study and provide qualitative comparison of our method versus existing professional tools and state of the art.
Description
@inproceedings{10.1145:3229147.3229148,
booktitle = {Expressive: Computational Aesthetics, Sketch-Based Interfaces and Modeling, Non-Photorealistic Animation and Rendering},
editor = {Aydın, Tunç and Sýkora, Daniel},
title = {{2D Shading for Cel Animation}},
author = {Hudon, Matis and Pagés, Rafael and Grogan, Mairéad and Ondřej, Jan and Smolić, Aljoša},
year = {2018},
publisher = {ACM},
ISSN = {2079-8679},
ISBN = {978-1-4503-5892-7},
DOI = {10.1145/3229147.3229148}
}