Depicting Shape Features with Directional Strokes and Spotlighting
Mario Costa Sousa, Faramarz Samavati, Meru Brunn.
Computer Graphics International (CGI'04),
2004. [BibTeX]
Illustrating Terrains using Direction of Slope and Lighting
Author(s): Kevin Buchin, Mario Costa Sousa, Jürgen Döllner, Faramarz Samavati, Maike Walther.
Proceedings: 4th ICA Mountain Cartography Workshop, Vall de Núria, Catalunya, Spain, 30th September - 2nd. October 2004,
2004.
[BibTeX]
Abstract:
Landscape illustrations and cartographic maps depict terrain surface in a qualitatively effective way. In this paper, we present a framework for line drawing techniques for automatically reproducing traditional illustrations of terrain by means of slope lines and tonal variations. Given a digital elevation model, surface measures are computed and slope lines of the terrain are hierarchically traced and stored. At run-time slope lines are rendered by stylized procedural and texture-based strokes. The stroke density of the final image is determined according to the light intensities. Using a texture based approach, the line drawing pipeline is encapsulated from the rendering of the terrain geometry. Our system operates on terrain data at interactive rates while maintaining frame-to-frame coherence.
Improving the Sketch-Based Interface
Richard Pusch, Faramarz Samavati, Ahmad Nasri, Brian Wyvill.
The Visual Computer, Vol. 23, No. 9--11, pp. 955--962, September,
2007. [BibTeX]
Modeling Plant Structures Using Concept Sketches
Fabricio Anastacio, Mario Costa Sousa, Faramarz Samavati, Joaquim A. Jorge.
NPAR '06: Proceedings of the 4th international symposium on Non-photorealistic animation and rendering, pp. 105--113, New York, NY, USA, June, ACM Press,
2006. [BibTeX]
Precise Ink Drawing of 3D Models
Mario Costa Sousa, Kevin Foster, Brian Wyvill, Faramarz Samavati.
Computer Graphics Forum, Vol. 22, No. 3, September,
2003. [BibTeX]
Ribbons: A representation for point clouds
Adam Runions, Faramarz Samavati, Przemyslaw Prusinkiewicz.
The Visual Computer, Vol. 23, No. 9--11, pp. 945--954, September,
2007. [BibTeX]
Silhouette Rendering Based On Stability Measurement
John Brosz, Faramarz Samavati, Mario Costa Sousa.
Spring Conference of Computer Graphics 2004 (SCCG '04),
2004. [BibTeX]
Sketch-based modeling with few strokes
Joseph Jacob Cherlin, Faramarz Samavati, Mario Costa Sousa, Joaquim A. Jorge.
21st Spring Conference on Computer graphics (SCCG'05), pp. 137--145, Budmerice, Slovakia, May 12-14,
2005. [BibTeX]