Directable physics-based character animation
department or school: Science, Faculty of
department or school: Computer Science, Department of
data provider: DSpace
degree campus: UBCV
creator: Kim, Nam Hee
issued: 2021-04-23T16:51:32Z
issued: 2021
related degree: Master of Science - MSc
degree grantor: University of British Columbia
description: Animated motions should be simple to direct while also being plausible. The work presented in this thesis develops a trajectory optimization system that takes as input a sequence of crudely-specified keyframes as motion sketches and produces a physically simulated, as-plausible-as-possible motion as output. We propose a novel control parameterization scheme for trajectory optimization, compactly incorporating keyframe timing, internal actions, and external assistive force modulations as auxiliary variables to realize desired motion sketches. Our method allows for emergent behaviours between keyframes, does not require advance knowledge of contacts or exact motion timing, supports the creation of physically-impossible motions, and allows for near-interactive motion creation. The use of a shooting method allows for the use of any black-box simulator. We present results for a variety of 2D and 3D motions, motion sketches that have sparse and dense keyframes, and both physically-feasible and physically-infeasible motions. We evaluate our control parameterization scheme against other recent methods that incorporate external assistive forces.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/77958
note: Directable Physics-BasedCharacter AnimationbyNam Hee KimB.Sc., e University of British Columbia, 2019A THESIS SUBMITTED IN PARTIAL FULFILLMENT OFTHE REQUIREMENTS FOR THE DEGREE OFMASTER OF SCIENCEinTHE FACULTY OF GRADUATE AND POSTDOCTORAL STUDIES(Computer Science)THE UNIVERSITY OF BRITISH COLUMBIA(Vancouver)April 2021© Nam Hee Kim, 2021e following individuals certify that they have read, and recommend to the Fac-ulty of Graduate and Postdoctoral Studies for acceptance, the thesis entitled:Directable Physics-Based Character Animationsubmied by Nam Hee Kim in partial fulllment of the requirements for thedegree of Master of Science in Computer Science.Examining Committee:Michiel van de Panne, Professor, Department of Computer Science, UBCSupervisorDinesh K. Pai, Professor, Department of Computer Science, UBCSupervisory Commiee MemberiiAbstractAnimated motions should be simple to direct while also being plausible. e workpresented in this thesis develops a trajectory optimization system that takes as in-put a sequence of crudely-specied keyframes as motion sketches and producesa physically simulated, as-plausible-as-possible motion as output. We propose anovel control parameterization scheme for trajectory optimization, compactly in-corporating keyframe timing, internal actions, and external assistive force mod-ulations as auxiliary variables to realize desired motion sketches. Our methodallows for emergent behaviours between keyframes, does not require advanceknowledge of contacts or exact motion timing, supports the creation of physically-impossible motions, and allows for near-interactive motion creation. e use ofa shooting method allows for the use of any black-box simulator. We present re-sults for a variety of 2D and 3D motions, motion sketches that have sparse anddense keyframes, and both physically-feasible and physically-infeasible motions.We evaluate our control parameterization scheme against other recent methodsthat incorporate external assistive forces.iiiLa…
has type: Thesis/Dissertation
date issued: 2021-05
is shown at: 10.14288/1.0396953
language: eng
degree discipline: Computer Science
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
type: Text
type: Moving Image
identifier URI: http://hdl.handle.net/2429/77958