A practical model for hair mutual interactions
- 21 July 2002
- conference paper
- conference paper
- Published by Association for Computing Machinery (ACM)
Abstract
Hair exhibits strong anisotropic dynamic properties which demand distinct dynamic models for single strands and hair-hair interactions. While a single strand can be modeled as a multibody open chain expressed in generalized coordinates, modeling hair-hair interactions is a more difficult problem. A dynamic model for this purpose is proposed based on a sparse set of guide strands. Long range connections among the strands are modeled as breakable static links formulated as nonreversible positional springs. Dynamic hair-to-hair collision is solved with the help of auxiliary triangle strips among nearby strands. Adaptive guide strands can be generated and removed on the fly to dynamically control the accuracy of a simulation. A high-quality dense hair model can be obtained at the end by transforming and interpolating the sparse guide strands. Fine imagery of the final dense model is rendered by considering both primary scattering and self-shadowing inside the hair volume which is modeled as being partially translucent.Keywords
This publication has 15 references indexed in Scilit:
- Modeling Dynamic Hair as a ContinuumComputer Graphics Forum, 2001
- Visual simulation of smokePublished by Association for Computing Machinery (ACM) ,2001
- Natural Hairstyle Modeling and AnimationGraphical Models, 2001
- Deep shadow mapsPublished by Association for Computing Machinery (ACM) ,2000
- Large steps in cloth simulationPublished by Association for Computing Machinery (ACM) ,1998
- Fake fur renderingPublished by Association for Computing Machinery (ACM) ,1997
- Linear-time dynamics using Lagrange multipliersPublished by Association for Computing Machinery (ACM) ,1996
- Simulating the structure and dynamics of human hair: Modelling, rendering and animationThe Journal of Visualization and Computer Animation, 1991
- Rendering hair using pixel blending and shadow buffersThe Journal of Visualization and Computer Animation, 1991
- Ray tracing volume densitiesPublished by Association for Computing Machinery (ACM) ,1984