Simulating complex hair with robust collision handling

  • Authors:
  • Byoungwon Choe;Min Gyu Choi;Hyeong-Seok Ko

  • Affiliations:
  • Seoul National University;Kwangwoon University;Seoul National University

  • Venue:
  • Proceedings of the 2005 ACM SIGGRAPH/Eurographics symposium on Computer animation
  • Year:
  • 2005

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Abstract

We present a new framework for simulating dynamic movements of complex hairstyles. The proposed framework, which treats hair as a collection of wisps, includes new approaches to simulating dynamic wisp movements and handling wisp-body collisions and wisp-wisp interactions. For the simulation of wisps, we introduce a new hair dynamics model, a hybrid of the rigid multi-body, serial chain and mass-spring models, to formulate the simulation system using an implicit integration method. Consequently, the simulator can impose collision/contact constraints systematically, allowing it to handle wisp-body collisions efficiently without the need for backtracking or sub-timestepping. In addition, the simulator handles wisp-wisp collisions based on impulses while taking into account viscous damping and cohesive forces. Experimental results show that the proposed technique can stably simulate hair with intricate geometries while robustly handling wisp-body collisions and wisp-wisp interactions.