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Multi-linear data-driven dynamic hair model with efficient hair-body collision handling.
| Content Provider | CiteSeerX |
|---|---|
| Author | Guan, Peng Sigal, Leonid Reznitskaya, Valeria Hodgins, Jessica K. |
| Abstract | Figure 1: Real-time animation of 900 guide multi-linear hair model, with interactive control over the hair softness (red slider, the higher the softer) and length (blue slider, the higher the longer); bottom row shows interactive control of wind strength (arrow length) and direction (arrow orientation). We present a data-driven method for learning hair models that enables the creation and animation of many interactive virtual characters in real-time (for gaming, character pre-visualization and design). Our model has a number of properties that make it appealing for interactive applications: (i) it preserves the key dynamic properties of physical simulation at a fraction of the computational cost, (ii) it gives the user continuous interactive control over the hair styles (e.g., lengths) and dynamics (e.g., softness) without requiring re-styling or re-simulation, (iii) it deals with hair-body collisions explicitly using optimization in the low-dimensional reduced space, (iv) it allows modeling of external phenomena (e.g., wind). Our method builds on the recent success of reduced models for clothing and fluid simulation, but extends them in a number of significant ways. We model motion of hair in a conditional reduced sub-space, where the hair basis vectors, which encode dynamics, are linear functions of userspecified hair parameters. We formulate collision handling as an optimization in this reduced sub-space using fast iterative least squares. We demonstrate our method by building dynamic, user-controlled models of hair styles. Categories and Subject Descriptors (according to ACM CCS): Graphics and Realism—Animation; Computer Graphics [I.3.7]: Three-Dimensional |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Efficient Hair-body Collision Handling Multi-linear Data-driven Dynamic Hair Model Interactive Control Hair Style Blue Slider User Continuous Interactive Control Many Interactive Virtual Character User-controlled Model Arrow Length Reduced Model Subject Descriptor Conditional Reduced Sub-space Arrow Orientation Real-time Animation Red Slider Bottom Row Guide Multi-linear Hair Model Hair Model External Phenomenon Linear Function Physical Simulation Hair Softness Low-dimensional Reduced Space Realism Animation Data-driven Method Interactive Application Fluid Simulation Character Pre-visualization Wind Strength Computational Cost Hair-body Collision Userspecified Hair Parameter Computer Graphic Collision Handling Acm Cc Recent Success Significant Way Key Dynamic Property Reduced Sub-space Hair Basis Vector Method Build |
| Content Type | Text |
