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Stylized Vector Art from 3D Models with Region Support
Author(s) -
Eisemann Elmar,
Winnemöller Holger,
Hart John C.,
Salesin David
Publication year - 2008
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/j.1467-8659.2008.01258.x
Subject(s) - polygon mesh , stylized fact , computer science , rendering (computer graphics) , computer graphics (images) , vertex (graph theory) , computer vision , raster graphics , artificial intelligence , face (sociological concept) , topology (electrical circuits) , shadow (psychology) , vector graphics , geometry , computer graphics , mathematics , theoretical computer science , psychology , psychotherapist , graph , social science , combinatorics , sociology , economics , macroeconomics
We describe a rendering system that converts a 3D meshed model into the stylized 2D filled‐region vector‐art commonly found in clip‐art libraries. To properly define filled regions, we analyze and combine accurate but jagged face‐normal contours with smooth but inaccurate interpolated vertex normal contours, and construct a new smooth shadow contour that properly surrounds the actual jagged shadow contour. We decompose region definition into geometric and topological components, using machine precision for geometry processing and raster‐precision to accelerate topological queries. We extend programmable stylization to simplify, smooth and stylize filled regions. The result renders 10K‐face meshes into custom clip‐art in seconds.