1. Eftychios Sifakis University of Wisconsin - Madison
Physics-based simulation for biomechanics, virtual medicine and character animation
Eftychios Sifakis
University of Wisconsin - Madison

2. Volumetric simulation mesh
Face animation
Modeling pipeline
Flesh geometry
Laser scans
Medical imagery
Volumetric simulation mesh
Anatomical datasets
Musculature

3. Hybrid whole body simulation
Hybrid mesh properties
A non-graded, adaptive BCC mesh for elasticity (330K elements)
An higher resolution surface mesh for collisions (370K triangles)
A point set for boundary conditions (flesh attachments to bones)

4. Embedded mesh generation
Formulated as a “cutting algorithm”
Material can be “carved” from an embedding volume using the material surface as the cutting geometry
Embedded material can be further cut as needed

5. Cutting and virtual surgery
A flexible (geometric) cutting algorithm is needed
No restriction on cut geometry
Support for intersecting cuts, and incremental cutting
Simulation support by the hybrid solids formulation
Embedded simulations in well-conditioned base meshes
Decoupling of elasticity simulation and collision handling

6. Cutting and virtual surgery
Surgical examples: Z-plasty

7. High-resolution elastic models