10. Procedural Modeling and Animation Techniques
Full Day / Advanced
This course imparts a working knowledge of procedural approaches in
modeling, shading, and animation. Procedural approaches include solid
texturing, hypertextures, volume density functions, character animation,
fractals, artificial evolution, L-systems, and implicit surfaces. The
course provides participants with details that are often omitted from
technical papers, explores the design of procedures, and presents new
material in procedural modeling and animation.
Who Should Attend
Individuals interested in procedural modeling, shading, and animation
techniques; the procedural design approaches of several researchers; and a
toolbox of procedures for producing realistic images.
Organizer
David Ebert
University of Maryland Baltimore County
Lecturers
John Hart
Washington State University
F. Kenton Musgrave
The George Washington University
Ken Perlin
New York University
Karl Sims
Genetic Arts
Brian Wyvill
University of Calgary
Schedule
8:30 am: Introduction - Ebert
Welcome and introduction
What we plan to accomplish
Definition and overview of procedural methods
8:45 am: Procedural Solid Object Geometry - Perlin
Introduction
Interesting shapes
Useful procedures and their development
Lifeforms
Woven Cloth
Architexture
9:15 am: Procedural Character Animation - Perlin
Gesturing
Creating emotions
Real-time characters with emotions
9:45 am: Procedural Geometry - Ebert
Introduction, motivation, relationship to solid texturing and hypertextures
Modeling gases, fluids, and fire
Useful procedures and their development
10:00 am: Break
10:15 am: Procedural Geometry (continued) - Ebert
10:30 am: Animation of Procedural Volumes - Ebert
Introduction to animation techniques
Animating solid textures
Animating gases
Animating fluids and fire
11:00 am: Implicit Surface Modeling and Animation - Wyvill
Parametric and implicit surface model (ISM) definitions
Implicit surfaces based on skeletons
Interactive modeling techniques
Blending (continuity, hard and soft blending)
Polygonization techniques (uniform voxel, adaptive octree, shrinkwrap) item
Polygonization of CSG and ISM
Ray tracing implicit surfaces
Solid texturing implicit surfaces
Animating implicit surfaces (curve following, warping, blending, negative
fields, metamorphosis of ISM and ISM/CSG models, examples, videos).
Noon: Break
1:30 pm: Procedural Models of Geometric Detail - Hart
An implicit representation of rough surfaces
Noise as a deformation (range vs. domain)
Blending rough surfaces
Rendering rough surfaces
Recurrent iterated function systems
Definition
Modeling and the inverse problem
Rendering using instancing
Procedural geometric instancing
L-systems, turtle graphics, problems
A procedural definition of geometry using instancing
Rendering (ray tracing vs. z-buffering)
2:30 pm: Procedural Models of Natural Phenomena - Musgrave
Introduction
Fractals in nature
Fractals and procedural modeling
Procedural Models of Natural Phenomena
Examples: clouds, fire, smoke, water
Terrain models
Textures for terrains
Planets
Procedural terrain models w/adaptive level of detail
3:00 pm: Break
3:15 pm: Procedural Models of Natural Phenomena (continued) - Musgrave
Development of a Procedural Texture: An Example
Ontogenetic vs. teleological modeling
Incremental implementation of a complex model
What lies ahead: procedural universes
3:45 pm: Artificial Evolution - Sims
Evolution
Genetic programming
Generating the parameter space
Searching the parameter space
Evolving Plants
Evolving Textures
Evolving Creatures
4:45 pm: Conclusion - All
Course Summary
Hot tips & pitfalls
Panel Question Answering Session
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