Misconceptions of PD Control in Animation

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dc.contributor.authorAllen, Brian F.en_US
dc.contributor.authorFaloutsos, Petrosen_US
dc.contributor.editorJehee Lee and Paul Kryen_US
dc.date.accessioned2014-01-29T08:00:56Z
dc.date.available2014-01-29T08:00:56Z
dc.date.issued2012en_US
dc.description.abstractIn this paper, we address certain misconceptions that have been perpetuated in the animation practice and research for quite some time related to the proportional-derivative (PD) control of physics-based systems. Because in animation we often think in terms of targeting keyframes, we tend to forget that PD control, in its simple form, has a very specific asymptotic behavior that approaches zero (or an offset) with zero velocity as time approaches infinity. We pay particular attention to the issue of introducing a ''desired'' or ''end'' velocity term in the equation of a proportional-derivative controller, and discuss how this term should be interpreted and how it relates to feedforward control rather than an end derivative problem.en_US
dc.description.seriesinformationEurographics/ ACM SIGGRAPH Symposium on Computer Animationen_US
dc.identifier.isbn978-3-905674-37-8en_US
dc.identifier.issn1727-5288en_US
dc.identifier.urihttps://doi.org/10.2312/SCA/SCA12/231-234en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectI.3.7 [Computer Graphics]en_US
dc.subjectThree Dimensional Graphics and Realismen_US
dc.subjectAnimationen_US
dc.titleMisconceptions of PD Control in Animationen_US
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SCA 12: Eurographics/SIGGRAPH Symposium on Computer Animation