Non-Photorealistic Computer Graphics Library

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Found 74 item(s) authored in "2001".
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Technical Report A Lua Implementation of Image Moment-Based Painterly Rendering
Diego Nehab, Luiz Velho.
IMPA, No. TR-01-11, December, 2001. [BibTeX]

Technical Report A New Framework for Non-Photorealistic Rendering
Ronald N. Perry, Sarah F. Frisken.
MERL, No. TR2001-12, 2001. [BibTeX]

Misc A Painterly Approach to Human Skin
Peter-Pike J. Sloan, Bruce Gooch, Bill Martin, Amy A. Gooch, Louise Bell.
Short Research paper, 2001. [BibTeX]

PhD Thesis A Projective Approach to Computer-Aided Drawing

Author(s): Osama Tolba.
PhD Thesis: Massachusetts Institute of Technology, 2001.
[BibTeX] Find this paper on Google

I present a novel drawing system for composing and rendering perspective scenes. The proposed approach uses a projective two-dimensional representation for primitives rather than a conventional three-dimensional description. This representation is based on points that lie on the surface of a unit sphere centered at the viewpoint. It allows drawings to be composed with the same ease as traditional illustrations, while providing many of the advantages of a three-dimensional model. I describe a range of user-interface tools and interaction techniques that give the drawing system its three-dimensional-like capabilities. The system provides vanishing point guides and perspective grids to aid in drawing freehand strokes and composing perspective scenes. The system also has tools for intuitive navigation of a virtual camera, as well as methods for manipulating drawn primitives so that they appear to undergo three-dimensional translations and rotations. The new representation also supports automatic shading of primitives using either realistic or non-photorealistic styles. My system supports drawing and shading of extrusion surfaces with automatic hidden surface removal and emphasized silhouettes. Casting shadows from an infinite light source is also possible with minimal user intervention. I describe a method for aligning a sketch drawn outside the system using its vanishing points, allowing the integration of computer sketching and freehand sketching on paper in an iterative manner. Photographs and scanned drawings are applied to drawing primitives using conventional texture-mapping techniques, thereby enriching drawings and providing another way of incorporating hand-drawn images. I demonstrate the system with a variety of drawings.

Proceedings A Projective Drawing System
Osama Tolba, Julie Dorsey, Leonard McMillan.
2001 ACM Symposium on Interactive 3D Graphics, 2001. [BibTeX]

Proceedings A Study on the Real-time Toon Rendering for 3D Geometry Model
Daeuk Kang, Donghwan Kim, Kyung Hyun Yoon.
Fifth International Conference on Information Visualisation (IV'01), pp. 391--396, July, 2001. [BibTeX]

Proceedings A Suggestive Interface for 3D Drawing
Takeo Igarashi, John F. Hughes.
14th annual ACM symposium on User interface software and technology (UIST'01), pp. 173--181, Orlando, Florida, November 11-14, 2001. [BibTeX]

Proceedings Adaptive Unwrapping for Interactive Texture Painting
Takeo Igarashi, Dennis Cosgrove.
2001 ACM Symposium on Interactive 3D Graphics, 2001. [BibTeX]

Misc Adventures in Non-photorealism: Creating a Painterly Renderer
Mark Fashing.
Honors Thesis, College of William and Mary, May, 2001. [BibTeX]

Proceedings AI Supported Computer-Generated Pen-and-Ink Illustration
Yan Gu, Songhua Xu, Min Tang, Jinxiang Dong.
The Sixth International Conference on Computer Supported Cooperative Work in Design, pp. 227--231, 12-14 July, 2001. [BibTeX]

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