Interactive Authoring of
ACM SIGGRAPH 2013
- Paper (PDF, 18 Mb)
- Video (Quicktime MP4, 113 Mb)
- Supplemental Video (Quicktime MP4, 50 Mb)
- Conference presentation slides (Powerpoint PPT, 40 Mb)
Yili Zhao, Jernej Barbič:
Interactive Authoring of Simulation-Ready Plants, ACM Transactions on Graphics 32(4) (SIGGRAPH 2013), July 2013. BIBTEX
Physically based simulation can produce quality motion of plants, but requires an authoring stage to convert plant "polygon soup" triangle meshes to a format suitable for physically based simulation. We give a system that can author complex simulation-ready plants in a manner of minutes. Our system decomposes the plant geometry, establishes a hierarchy, builds and connects simulation meshes, and detects instances. It scales to anatomically realistic geometry of adult plants, is robust to non-manifold input geometry, gaps between branches or leaves, free-flying leaves not connected to any branch, spurious geometry, and plant self-collisions in the in- put configuration. We demonstrate the results using a FEM model reduction simulator that can compute large-deformation dynamics of complex plants at interactive rates, subject to user forces, gravity or randomized wind. We also provide plant fracture (with pre-specified patterns), inverse kinematics to easily pose plants, as well as interactive design of plant material properties. We authored and simulated over 100 plants from diverse climates and geographic regions, including broadleaf (deciduous) trees and conifers, bushes and flowers. Our largest simulations involve anatomically realistic adult trees with hundreds of branches and over 100,000 leaves.Comments, questions to Jernej Barbič.
- Real-time Large-deformation Substructuring
- Real-Time Subspace Integration for St.Venant-Kirchhoff Deformable Models
- NSF (CAREER-53-4509-6600)
- Intel Corporation (donation of two workstations)
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