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Active Strokes: Coherent Line Stylization for Animated 3D Models

Pierre Bénard 1 Lu Jingwan 2 Forrester Cole 3 Adam Finkelstein 2 Joëlle Thollot 1
1 MAVERICK - Models and Algorithms for Visualization and Rendering
Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology
Abstract : This paper presents a method for creating coherently animated line drawings that include strong abstraction and stylization effects. These effects are achieved with active strokes: 2D contours that approximate and track the lines of an animated 3D scene. Active strokes perform two functions: they connect and smooth unorganized line samples, and they carry coherent parameterization to support stylized rendering. Line samples are approximated and tracked using active contours ("snakes") that automatically update their arrangment and topology to match the animation. Parameterization is maintained by brush paths that follow the snakes but are independent, permitting substantial shape abstraction without compromising fidelity in tracking. This approach renders complex models in a wide range of styles at interactive rates, making it suitable for applications like games and interactive illustrations.
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Submitted on : Friday, May 4, 2012 - 2:08:22 PM
Last modification on : Monday, November 8, 2021 - 1:36:07 PM
Long-term archiving on: : Sunday, August 5, 2012 - 2:21:07 AM


  • HAL Id : hal-00693453, version 1



Pierre Bénard, Lu Jingwan, Forrester Cole, Adam Finkelstein, Joëlle Thollot. Active Strokes: Coherent Line Stylization for Animated 3D Models. NPAR 2012 - 10th International Symposium on Non-photorealistic Animation and Rendering, Jun 2012, Annecy, France. pp.37-46. ⟨hal-00693453⟩



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