SATIN: A Toolkit for Informal Ink-based Applications
Jason I. Hong, James A. Landay.
ACM Symposium on User Interface Software and Technology, CHI Letters, Vol. 2, No. 2, pp. 63--72,
2000. [BibTeX]
Seeing Structure: Using Knowledge to Reconstruct and Illustrate Anatomy
Kevin P. Hinshaw.
University of Washington,
2000. [BibTeX]
Shadows for Cel Animation
Lena Petrovic, Brian Fujito, Lance Williams, Adam Finkelstein.
Proceedings of SIGGRAPH, Kurt Akeley, pp. 511--516, July, ACM Press / ACM SIGGRAPH / Addison Wesley Longman,
2000. [BibTeX]
Silhouette Clipping
Pedro V. Sander, Xianfeng Gu, Steven J. Gortler, Hugues Hoppe, John Snyder.
Proceedings of SIGGRAPH 2000, Kurt Akeley, pp. 327--334, July, ACM Press / ACM SIGGRAPH / Addison Wesley Longman,
2000. [BibTeX]
Stylized Rendering Techniques For Scalable Real-Time 3D Animation
Adam Lake, Carl Marshall, Mark Harris, Marc Blackstein.
1st International Symposium on Non-Photorealistic Animation and Rendering (NPAR'00), pp. 13--20, Annecy, France, June 05 - 07,
2000. [BibTeX]
Systems for Sketching in 3D
Jonathan M. Cohen.
Brown University, May,
2000. [BibTeX]
Teaching Non-Photorealistic Animation and Rendering
Thomas Strothotte, Stefan Schlechtweg.
1st International Symposium on Non-Photorealistic Animation and Rendering (NPAR'00), pp. 109, Annecy, France, June 05 - 07,
2000. [BibTeX]
Techniques for Interactive Video Cubism
Sidney Fels, Eric Lee, Kenji Mase.
ACM Multimedia 2000 Proceedings, pp. 368--370, October,
2000. [BibTeX]
The edge buffer: A data structure for easy silhouette rendering
John W. Buchanan, Mario Costa Sousa.
1st International Symposium on Non-Photorealistic Animation and Rendering (NPAR'00), pp. 39--42, Annecy, France, June 05 - 07,
2000. [BibTeX]
Using a 3D Puzzle as a Metaphor for Learning Spatial Relations
Author(s): Felix Ritter, Bernhard Preim, Oliver Deussen, Thomas Strothotte.
Proceedings: Graphics Interface (GI'00), Montreal, 15-17 May,
2000.
[BibTeX] 
Abstract:
We introduce a new metaphor for learning spatial relations—
the 3D puzzle. With this metaphor users learn
spatial relations by assembling a geometric model themselves.
For this purpose, a 3D model of the subject at
hand is enriched with docking positions which allow objects
to be connected. Since complex 3D interactions are
required to compose 3D objects, sophisticated 3D visualization
and interaction techniques are included.
Among these techniques are specialized shadow generation,
snapping mechanisms, collision detection and the
use of two-handed interaction.
The 3D puzzle, similar to a computer game, can be
operated at different levels of difficulty. To simplify the
task, a subset of the geometry, e.g., the skeleton of an anatomic
model, can be given initially. Moreover, textual
information concerning the parts of the model is provided
to support the user. With this approach we motivate
students to explore the spatial relations in complex
geometric models and at the same time give them a goal
to achieve while learning takes place. A prototype of a
3D puzzle, which is designed principally for use in anatomy
education, is presented.