A Layered Wisp Model for Simulating Interactions inside Long Hair

Plante Eric, Cani Marie-Paule, Poulin Pierre
In Magnenat-Thalmann N. et Thalmann D. editors, Eurographics Workshop on Computer Animation and Simulation, EGCAS 2001. Manchester, Royaume-Uni, septembre 2001. Computer Science pages 139–148. Springer, 2001.
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This paper presents a method for animating long hair while modelling both interactions between the hair and the character's body and between different hair wisps. Our method relies on a layered model paradigm. Hair is structured into a number of volumetric wisps whose motion and deformation are computed using a layered model: A first layer, the skeleton curve, computes the large scale motion of a wisp. This skeleton is coated by a second layer, the deformable wisp envelope, linked to the skeleton through highly viscous springs. A third layer is used for rendering the individual hair strands within each wisp. During motion, anisotropic interactions are computed between hair wisps, in addition to interactions with character body: two quasi-parallel wisps are allowed to interpenetrate while a viscous collision is computed between colliding wisps of different orientation. This results in a visually-realistic animation, that captures both continuities and discontinuities that can be observed in thick, long hair.

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author = {Eric Plante and Marie-Paule Cani and Pierre Poulin},
title = {A Layered Wisp Model for Simulating Interactions inside Long Hair},
booktitle = {Eurographics Workshop on Computer Animation and Simulation, EGCAS 2001, September, 2001},
series = {Computer Science},
editor = {Nadia Magnenat-Thalmann and Daniel Thalmann},
address = {Manchester, Royaume-Uni},
publisher = {Springer},
pages = {139--148},
keywords = {animation, simulation, hair, interactions},
month = sep,
year = 2001

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