Non-Photorealistic Computer Graphics Library

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Found 26 item(s) of type "Master Thesis".
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Master Thesis Implementing Non-photorealistic Rendering Enhancements with Real-Time Performance

Author(s): Holger Winnemöller.
Master Thesis: Computer Science Department, Rhodes University, February, 2002.
[BibTeX] Find this paper on Google

Abstract:
We describe quality and performance enhancements, which work in real-time, to all well-known Nonphotorealistic (NPR) rendering styles for use in an interactive context. These include Comic rendering, Sketch rendering, Hatching and Painterly rendering, but we also attempt and justify a widening of the established definition of what is considered NPR. In the individual Chapters, we identify typical stylistic elements of the different NPR styles. We list problems that need to be solved in order to implement the various renderers. Standard solutions available in the literature are introduced and in all cases extended and optimised. In particular, we extend the lighting model of the comic renderer to include a specular component and introduce multiple inter-related but independent geometric approximations which greatly improve rendering performance. We implement two completely different solutions to random perturbation sketching, solve temporal coherence issues for coal sketching and find an unexpected use for 3D textures to implement hatch-shading. Textured brushes of painterly rendering are extended by properties such as stroke-direction and texture, motion, paint capacity, opacity and emission, making them more flexible and versatile. Brushes are also provided with a minimal amount of intelligence, so that they can help in maximising screen coverage of brushes. We furthermore devise a completely new NPR style, which we call super-realistic and show how sample images can be tweened in real-time to produce an image-based six degree-of-freedom renderer performing at roughly 450 frames per second. Performance values for our other renderers all lie between 10 and over 400 frames per second on home- PC hardware, justifying our real-time claim. A large number of sample screen-shots, illustrations and animations demonstrate the visual fidelity of our rendered images. In essence, we successfully achieve our attempted goals of increasing the creative, expressive and communicative potential of individual NPR styles, increasing performance of most of them, adding original and interesting visual qualities, and exploring new techniques or existing ones in novel ways.

Master Thesis Importance Driven Halftoning
Lisa M. Streit.
University of Alberta, 1998. [BibTeX]

Master Thesis Inking Old Black-and-White Cartoons
Daniel Sýkora.
Department of Computer Science and Engineering, Faculty of Electrical Engineering, Prague, Czech Republic, January, 2003. [BibTeX]

Master Thesis Integration of Non-Photorealistic Rendering Techniques for 3D Models in Processing
Katrin Lang.
Technical University of Berlin, May, 2009. [BibTeX]

Master Thesis Interactive crayon rendering for animation
Howard Halstead.
Texas A&M University, 2004. [BibTeX]

Master Thesis Interactive Non-Photorealistic Technical Illustration
Amy A. Gooch.
Department of Computer Science, University of Utah, December, 1998. [BibTeX]

Master Thesis Motion Doodles - A Sketch-based Interface for Character Animation
Matthew Thorne.
University of British Columbia, September, 2003. [BibTeX]

Master Thesis Non-Photorealistic Rendering Techniques for Real-Time Character Animation
Jérôme Thoma.
Rheinisch-Westfälische Technische Hochschule Aachen, 2003. [BibTeX]

Master Thesis Nonphotorealistic Visualisation of Multidimensional Datasets
Laura Tateosian.
Graduate Faculty of North Carolina State University, 2002. [BibTeX]

Master Thesis Painterly Interfaces for Audiovisual Performance
Golan Levin.
School of Architecture and Planning, Massachusetts Institute of Technology, August, 2000. [BibTeX]

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