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Precise Ink Drawing of 3D Models
Author(s) -
Sousa Mario Costa,
Foster Kevin,
Wyvill Brian,
Samavati Faramarz
Publication year - 2003
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 - 10.1111/1467-8659.00684
Subject(s) - polygon mesh , computer science , rendering (computer graphics) , curvature , computer graphics (images) , non photorealistic rendering , enhanced data rates for gsm evolution , artificial intelligence , process (computing) , computer vision , feature (linguistics) , geometry , animation , mathematics , computer animation , computer facial animation , linguistics , philosophy , operating system
Drawings made with precise pen strokes accurately reveal the geometric forms that give subjects their characteristicshape. We present a system for non‐photorealistic rendering of precise drawing strokes over dense 3Dtriangle meshes with arbitrary topology. During an automatic pre‐process, we construct an extended version ofthe edge‐buffer data structure to allow the calculation of shape measures at each mesh edge, by adapting numericalmethods used in geomorphology. At runtime, feature edges related to shape measures are extracted andrendered as strokes with varying thickness and pen marking styles. Stroke thickness is automatically adjusted byconsidering surface curvature. Pen marking styles and visual effects of ink distribution are both controlled by theuser. We demonstrate precise drawing strokes over complex meshes revealing a variety of shape characteristics.