Affiliation:
1. Computer Research and Development, Lucasfilm, Ltd.
Abstract
This paper presents an approach to computerized inbetweening which allows the animator more control over an interpolation sequence than existing keyframe techniques. In our approach, the animator specifies in addition to a set of keyframe constraints, a set of new constraints called
moving points
. Moving points are curves in space and time which constrain both the trajectory and dynamics of certain points on the keyframes. The sets of keyframes and moving points form a constraint or
patch network
specification of the desired dynamics. Several algorithms are presented for inbetweening or completing such a patch network. By measuring these algorithms with respect to a set of evaluation criteria, the algorithm which best meets our interpolation needs is selected.
Publisher
Association for Computing Machinery (ACM)
Subject
Computer Graphics and Computer-Aided Design,General Computer Science
Reference15 articles.
1. Computer generated key frame animation;Burtnyk N.;Journal of the Society of Motion Picture and Television Engineers,1971
2. Interactive skeleton techniques for enhancing motion dynamics in key frame animation
3. The problems of computer-assisted animation
4. Catmull E. "New frontiers in computer animation " American Cinematrographer (Oct. 1979). Catmull E. "New frontiers in computer animation " American Cinematrographer (Oct. 1979).
Cited by
66 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
1. Joint Stroke Tracing and Correspondence for 2D Animation;ACM Transactions on Graphics;2024-04-09
2. CurveCrafter: A System for Animated Curve Manipulation;Proceedings of the 36th Annual ACM Symposium on User Interface Software and Technology;2023-10-29
3. Efficient Interpolation of Rough Line Drawings;Computer Graphics Forum;2023-10
4. Non‐linear Rough 2D Animation using Transient Embeddings;Computer Graphics Forum;2023-05
5. Computer Animation;Stepping into Virtual Reality;2023