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Smoke Sheets with Arbitrary Reconnection for Filament-based Simulation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Barnat, Alfred Pollard, Nancy S. |
| Copyright Year | 2011 |
| Abstract | Smoke is one of the core phenomena which fluid simulation techniques in computer graphics have attempted to capture. Its behavior is well understood mathematically, and accurate smoke simulation can greatly enhance the realism of computer generated effects. Though much of the work related smoke simulation thus far has used Eulerian grid-based representations of fluid velocity, a technique has recently been developed which represents velocity using a sparse set of vortex filaments. This has the advantage of providing an easily understandable and controllable model for fluid velocity, but is computationally expensive because each filament affects the fluid velocity over the entire simulation space. We build upon previous work which merges adjacent rings of filaments in order to minimize the total number of filaments by allowing filaments to form structures other than rings and allowing arbitrary reconnection. To complement this technique, we also introduce a method for smoke rendering designed to minimize the number of sample points without introducing excessive diffusion or blurring. This rendering technique advects a mesh representation of the smoke surface, thus effectively preserving the appearance of thin sheets and curls. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.cs.cmu.edu/afs/cs/user/abarnat/www/smoke_sheets.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
