A 2.5D Modelling and Animation Framework Supporting Computer Assisted Traditional Animation
Fabian Di Fiore.
School of Information Technology, Transnational University of Limburg, June,
2004. [BibTeX]
A New Lighting Model for Computer-Generated Line Drawings
Jörg Hamel.
Otto-von-Guericke University Magdeburg, Germany,
2000. [BibTeX]
A Projective Approach to Computer-Aided Drawing
Author(s): Osama Tolba.
PhD Thesis: Massachusetts Institute of Technology,
2001.
[BibTeX]
Abstract:
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.
Algorithms for Rendering in Artistic Styles
Aaron Hertzmann.
New York University, May,
2001. [BibTeX]
An Extensible Simulation Framework Supporting Physically-based Interactive Painting
Tom Van Laerhoven.
Transnational University Limburg, Belgium, June,
2006. [BibTeX]
Art-based Modeling and Rendering for Computer Graphics
Lee Markosian.
Department of Computer Science, Brown University,
2000. [BibTeX]
Capturing the Essence of Shape of Polygonal Meshes
Tobias Isenberg.
University of Magdeburg, Germany,
2004. [BibTeX]
Computer Graphics and Geometric Ornamental Design
Craig S. Kaplan.
University of Washington,
2002. [BibTeX]
Computer-Generated Graphite Pencil Materials and Rendering
Mario Costa Sousa.
Department of Computing Science, University of Alberta, June,
1999. [BibTeX]
Computer-Generated Pen-and-Ink Illustration
George Winkenbach.
University of Washington,
1996. [BibTeX]