CS 285: SOLID MODELING
Lecture #23 -- Mo Apr. 17, 2000.
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Preparation
Read these two papers and answer the questions:
- How does the algorithm exploit coherence of the original data set ?
- Can the algorithm guarantee water-tightness of the constructed surfaces ? How ?
"Voxel Based Object Simplification" by T. He at al.
- Is genus simplification a "good thing" ?
- What is the main "control knob" for adjusting LOD ?
- What is the new rendering trick introduced in this paper ?
- What is the special problem encountered with data from a CT-scan ?
Project Proposal Presentation
- Ben Schleimer : Booleans in Voxel Space
Discussion of Papers
"Marching Cubes: A High Resolution 3D Surface Construction Algorithm" by W. Lorensen and H. Cline.
Overview by Ben Schleimer.
"Voxel Based Object Simplification" by T. He at al.
Overview by Connie Tung.
Organize Remaining Paper Presentations
These are the topics that I still want to touch upon to round off this year's CS285 course:
- A -- Reducing the complexity of scanned meshes while maintaining the shape indicated by the data points as well as possible.
- B -- Smoothing simple polyhedral shapes via recursive subdivision, with the option of maintaining selected sharp edges.
- C -- Resolving the intersections of individual components with robust algorithms, possibly using implicit surfaces.
- D -- Creating consistent shapes with substitution rules (L-systems) or with evolutionary (genetic) algorithms.
Please order these four topics in decreasing order of your personal preference.
Assignment: READ:
Bathsheba Grossman: "Mind, Hand, Machine: How I Make Sculpture."
(Handout)
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