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UBC Theses and Dissertations
Keyframe animation of implicit models White, David I.
Abstract
We present an approach that automatically constructs physically plausible in-between frames, given keyframes of arbitrary implicit surface geometry and feature points registered between adjacent keyframes. This extends to usable keyframe control of computer animated fluid-like materials. Most current implicit surface morphs do not allow feature point tracking and none guarantee physically plausible in-between frames of arbitrary motion. Standard triangle surface mesh morphing techniques do not guarantee physically plausible in-betweens either, nor can they handle topological changes. Current fluid control approaches do not respect keyframes nor track feature points. Our variational approach finds a volume mapping between keyframes which minimizes a physics-based objective function using Gauss-Newton modified to handle linear constraints. We then create as-rigid-as-possible trajectories of the volume respecting this map, which we use to create physically plausible in-between frames.
Item Metadata
Title |
Keyframe animation of implicit models
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
2006
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Description |
We present an approach that automatically constructs physically plausible in-between frames, given keyframes of arbitrary implicit surface geometry and feature points registered between adjacent keyframes. This extends to usable keyframe control of computer animated fluid-like materials. Most current implicit surface morphs do not allow feature point tracking and none guarantee physically plausible in-between frames of arbitrary motion. Standard triangle surface mesh morphing techniques do not guarantee physically plausible in-betweens either, nor can they handle topological changes. Current fluid control approaches do not respect keyframes nor track feature points. Our variational approach finds a volume mapping between keyframes which minimizes a physics-based objective function using Gauss-Newton modified to handle linear constraints. We then create as-rigid-as-possible trajectories of the volume respecting this map, which we use to create physically plausible in-between frames.
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Genre | |
Type | |
Language |
eng
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Date Available |
2010-01-16
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0051751
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
2006-11
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.