Reproduction of perspective in cel animation 2D composition for real-time 3D rendering

Takeshi Okuya, Shigekazu Sakai

研究成果: Conference contribution

抄録

Many 2D cel animations and 3DCG cel-style animations are still being actively produced in Japan. Cel animation has its own perspective, which is different from general 3D space. In this paper, we focus on the perspective generated by the compositing process and reproduce it by moving the vanishing point and adjusting the perspective strength. In the proposed method, we modify the projection matrix. This makes it possible to change the appearance of the 2D shape in real-time without changing the 3D shape of the model. The user controls the matrix using three 3D points called the vanishing guidance point, virtual viewpoint, and model focus point. A matrix is generated for each model. In addition, to operate the proposed method with the current major shading algorithms, we provide modified shadow mapping and rim lighting methods. Furthermore, we consider effective hierarchical structures for using the proposed method in general computer graphics software. The results confirm that this method reproduces the features of cel animation. Moreover, they show that the processing speed achieves the performance required for use in real-time rendering.

本文言語English
ホスト出版物のタイトルProceedings - CVMP 2019
ホスト出版物のサブタイトル16th ACM SIGGRAPH European Conference on Visual Media Production
編集者Stephen N. Spencer
出版社Association for Computing Machinery, Inc
ISBN(電子版)9781450370035
DOI
出版ステータスPublished - 2019 12 17
イベント16th ACM SIGGRAPH European Conferenceon Visual Media Production, CVMP 2019 - London, United Kingdom
継続期間: 2019 12 172019 12 18

出版物シリーズ

名前Proceedings - CVMP 2019: 16th ACM SIGGRAPH European Conference on Visual Media Production

Conference

Conference16th ACM SIGGRAPH European Conferenceon Visual Media Production, CVMP 2019
CountryUnited Kingdom
CityLondon
Period19/12/1719/12/18

ASJC Scopus subject areas

  • Visual Arts and Performing Arts

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