Computer animation
Hair“A Survey on Hair Modeling: Styling, Simulation, and Rendering,” K. Ward, F. Bertails, T.-Y. Kim S.
Marschner, M.-P. Cani, M. Lin
Motion – dynamic grouping and splitting of hair clusters, collision of hairs, seconday motion due to head motion
Properites – coarse v. fine, dry v. wet, stiff v. loose, oily v. clean, hair strand types
Shape – handle various hair styles
User Control – over hair style, properties
Shape – handle various hair styles
Distribute strands
Create hair styles
Work with clusters of hair strands
Multi-resolution techniques
Use fluid flow to define hair strand ‘paths’
Vector field
Constraints for complex hair styles
From photographs
Capture local orientations
Comparison of shaping techniques
Procedurally generate style
Pseudo-randomSemi-automatic
Physically based methodEnergy minimization
Hair dynamics
Allow common hair solon operations
Wetting, Blow-drying, etc.
Hair simulation
Mechanics: curl, elasticity, cross section
Hair strandchain of rigid links v. spring-
dampers
Comparison of simulation techniques
Particle physicsFluid dynamics
Use guide strands for animationThen interpolate for dense hair
model
Hair strips to represent hair clusters
Level of detail representation for animation
Adaptive clusters, merge and split