Abstract
We present a new set of algorithms for line-art rendering of smooth surfaces. We introduce an efficient, deterministic algorithm for finding silhouettes based on geometric duality, and an algorithm for segmenting the silhouette curves into smooth parts with constant visibility. These methods can be used to find all silhouettes in real time in software. We present an automatic method for generating hatch marks in order to convey surface shape. We demonstrate these algorithms with a drawing style inspired by A Topological Picturebook by G. Francis.
Original language | English (US) |
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Pages | 517-526 |
Number of pages | 10 |
DOIs | |
State | Published - 2000 |
Event | SIGGRAPH 2000 - New Orleans, LA, United States Duration: Jul 23 2000 → Jul 28 2000 |
Other
Other | SIGGRAPH 2000 |
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Country/Territory | United States |
City | New Orleans, LA |
Period | 7/23/00 → 7/28/00 |
Keywords
- Direction fields
- Hatching
- Non-photorealistic rendering
- Pen-and-ink illustration
- Silhouettes
ASJC Scopus subject areas
- General Computer Science