Artistic Simulation of Curly Hair

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dc.contributor.authorIben, Hayleyen_US
dc.contributor.authorMeyer, Marken_US
dc.contributor.authorPetrovic, Lenaen_US
dc.contributor.authorSoares, Olivieren_US
dc.contributor.authorAnderson, Johnen_US
dc.contributor.authorWitkin, Andrewen_US
dc.contributor.editorTheodore Kim and Robert Sumneren_US
dc.date.accessioned2016-02-18T12:01:25Z
dc.date.available2016-02-18T12:01:25Z
dc.date.issued2013en_US
dc.description.abstractArtistic simulation of hair presents many challenges - ranging from incorporating artistic control to dealing with extreme motions of characters. Additionally, in a production environment, the simulation needs to be fast and results need to be usable ''out of the box'' (without extensive parameter modifications) in order to produce content efficiently. These challenges are only increased when simulating curly, stylized hair. We present a method for stably simulating stylized curly hair that addresses these artistic needs and performance demands. To satisfy the artistic requirement of maintaining the curl's helical shape during motion, we propose a hair model based upon an extensible elastic rod. We introduce a method for stably computing a frame along the hair curve, essential for stable simulation of curly hair. Our hair model uses a spring for controlling the bending of the curl and another for maintaining the helical shape during extension. We also address performance concerns often associated with handling hair-hair contact interactions by efficiently parallelizing the simulation. To do so, we present a technique for pruning both hair-hair contact pairs and hair particles. Our method has been used on two full length feature films and has proven to be robust and stable over a wide range of animated motion and on a variety of hair styles, from straight to wavy to curly. It has proven invaluable in providing controllable, stable and efficient simulation allowing our artists to achieve their desired performance even when facing strict scheduling demands.en_US
dc.description.sectionheadersUsing Rods for Ears, Hairs, and Spinesen_US
dc.description.seriesinformationEurographics/ ACM SIGGRAPH Symposium on Computer Animationen_US
dc.identifier.doi10.1145/2485895.2485913en_US
dc.identifier.isbn978-1-4503-2132-7en_US
dc.identifier.issn1727-5288en_US
dc.identifier.pages63-72en_US
dc.identifier.urihttps://doi.org/10.1145/2485895.2485913en_US
dc.publisherACM SIGGRAPH / Eurographics Associationen_US
dc.subjectCR Categoriesen_US
dc.subjectI.3.7 [Computer Graphics]en_US
dc.subjectThree Dimensional Graphics and Realismen_US
dc.subjectAnimationen_US
dc.subjectKeywordsen_US
dc.subjectHair simulationen_US
dc.subjectMassen_US
dc.subjectspring modelsen_US
dc.titleArtistic Simulation of Curly Hairen_US
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SCA 13: Eurographics/SIGGRAPH Symposium on Computer Animation