Detail preserving continuum simulation of straight hair

  • Authors:
  • Aleka McAdams;Andrew Selle;Kelly Ward;Eftychios Sifakis;Joseph Teran

  • Affiliations:
  • University of California, Los Angeles;Walt Disney Animation Studios;Walt Disney Animation Studios;University of California, Los Angeles and Walt Disney Animation Studios;University of California, Los Angeles and Walt Disney Animation Studios

  • Venue:
  • ACM SIGGRAPH 2009 papers
  • Year:
  • 2009

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Abstract

Hair simulation remains one of the most challenging aspects of creating virtual characters. Most research focuses on handling the massive geometric complexity of hundreds of thousands of interacting hairs. This is accomplished either by using brute force simulation or by reducing degrees of freedom with guide hairs. This paper presents a hybrid Eulerian/Lagrangian approach to handling both self and body collisions with hair efficiently while still maintaining detail. Bulk interactions and hair volume preservation is handled efficiently and effectively with a FLIP based fluid solver while intricate hair-hair interaction is handled with Lagrangian self-collisions. Thus the method has the efficiency of continuum/guide based hair models with the high detail of Lagrangian self-collision approaches.