Journal
COMPUTER GRAPHICS FORUM
Volume 33, Issue 6, Pages 228-251Publisher
WILEY
DOI: 10.1111/cgf.12346
Keywords
position-based simulation; shape matching; data-driven upsampling; deformable solids; fluids
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Funding
- 'Excellence Initiative' of the German Federal Government
- 'Excellence Initiative' of the German State Government
- Graduate School CE at TU Darmstadt
- Spanish Ministry of Economy [TIN2012-35840]
- European Research Council [ERC-2011-StG-280135 Animetrics]
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The dynamic simulation of mechanical effects has a long history in computer graphics. The classical methods in this field discretize Newton's second law in a variety of Lagrangian or Eulerian ways, and formulate forces appropriate for each mechanical effect: joints for rigid bodies; stretching, shearing or bending for deformable bodies and pressure, or viscosity for fluids, to mention just a few. In the last years, the class of position-based methods has become popular in the graphics community. These kinds of methods are fast, stable and controllable which make them well-suited for use in interactive environments. Position-based methods are not as accurate as force-based methods in general but they provide visual plausibility. Therefore, the main application areas of these approaches are virtual reality, computer games and special effects in movies. This state-of-the-art report covers the large variety of position-based methods that were developed in the field of physically based simulation. We will introduce the concept of position-based dynamics, present dynamic simulation based on shape matching and discuss data-driven upsampling approaches. Furthermore, we will present several applications for these methods.
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