Resolution Independent NPR-Style 3D Line Textures
Author(s): Kristin Potter, Amy A. Gooch, Bruce Gooch, Peter Willemsen, Joe Kniss, Richard Riesenfeld, Peter Shirley.
Article: Computer Graphics Forum, Vol. 28, No. 1, pp. 56--66,
2009.
[BibTeX] [DOI]
Abstract:
This work introduces a technique for interactive walk-throughs of non-photorealistically rendered (NPR) scenes using three-dimensional (3D) line primitives to define architectural features of the model, as well as indicate textural qualities. Line primitives are not typically used in this manner in favour of texture mapping techniques which can encapsulate a great deal of information in a single texture map, and take advantage of GPU optimizations for accelerated rendering. However, texture mapped images may not maintain the visual quality or aesthetic appeal that is possible when using 3D lines to simulate NPR scenes such as hand-drawn illustrations or architectural renderings. In addition, line textures can be modified interactively, for instance changing the sketchy quality of the lines. The technique introduced here extracts feature edges from a model, and using these edges, generates a reduced set of line textures which indicate material properties while maintaining interactive frame rates. A clipping algorithm is presented to enable 3D lines to reside only in the interior of the 3D model without exposing the underlying triangulated mesh. The resulting system produces interactive illustrations with high visual quality that are free from animation artifacts.
Semanticons: Visual Metaphors as File Icons
Vidya Setlur, Conrad Albrecht-Buehler, Amy A. Gooch, Sam Rossoff, Bruce Gooch.
Computer Graphics Forum, Vol. 24, No. 3, pp. 647--656,
2005. [BibTeX]
The Lit Sphere: A Model for Capturing NPR Shading from Art
Peter-Pike J. Sloan, William Martin, Amy A. Gooch, Bruce Gooch.
Graphics Interface (GI'01), June,
2001. [BibTeX]
Viewing Progress in Non-photorealistic Rendering through Heinlein's Lens
Amy A. Gooch, Jeremy Long, Li Ji, Anthony Estey, Bruce Gooch.
Proceedings of the 8th International Symposium on Non-Photorealistic Animation and Rendering (NPAR'10), pp. 165--171, ACM,
2010. [BibTeX]