1. Advanced Computer Graphics: Introduction
James Gain
Department of Computer Science University of Cape Town
Advanced Computer GraphicsCollaborative Visual Computing Laboratory

2. Advanced Computer Graphics
Objectives
To introduce advanced graphics
To provide an overview and context for the course
To outline the course requirements and evaluation
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Advanced Computer Graphics

3. Advanced Computer Graphics
Exercise: Realism
Question: Consider some recent computer animated films (Shrek, Finding Nemo, Final Fantasy). Which aspects do you feel where particularly realistic and which unrealistic? Try to name particular scenes.
Answer: - +
Subsurface lighting (skin, milk, etc)
Hair
Facial animation and lip synching
Complex shapes
Perfection (no dust, dirt and dents)
Physical effects (wind, water, fire, cloth)
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Advanced Computer Graphics

4. The Graphics Creation Pipeline
Model
Texture
Animate
Render
Low Level
- Polygon Mesh -
- Polygon Scan Conversion
High Level
- Curves
- Surfaces
- CSG
- Texture, bump, environment mapping
- Kinematic chains
- Animation functions
- Quaternions
- Ray Tracing
Advanced
- B-splines
- Volumetric
- Blobby
- Deformation
Dynamics
Kinematics
Motion capture
- Radiosity
- Illumination Models
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Advanced Computer Graphics

5. Advanced Computer Graphics
Course Structure
Credits: 3
Pre-requisite: interactive computer graphics (CS3)
Structure:
Blocks of 3 lectures
5 weekly double period reading group sessions (10 min introduction, 40 min presentation by 2 participants, 40 min group discussion)
Purpose:
Enhance critical reading, writing, presentation and discussion skills
Cover more advanced aspects of computer graphics
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Advanced Computer Graphics

6. Advanced Computer Graphics
Evaluation
Mark:
Exam 40%, Structure Portfolio 20%, Project 40%
DP:
Attend and submit review forms for 7 out of 10 reading groups
Present a paper overview for one reading group session
Exam:
Open Book (may take in papers, structured portfolio and textbooks)
2 Hours
Attendance:
To attend a reading group you must have read the paper and completed a review form
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Advanced Computer Graphics

7. Advanced Computer Graphics
Lecture Contents
Title
Lectures
Modelling
Constructive and Procedural
Texture
Curves and Surfaces 6
Rendering
Ray Tracing
Radiosity 3
Animation
Interpolation and Rotation
Anti-aliasing
Visualization
Colour
Scalar field and volume rendering
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Advanced Computer Graphics

8. Advanced Computer Graphics
Papers
Freeform Modelling
“Teddy: a Sketching Interface for 3D FreeForm Design”
Procedural Modelling
“Procedural Modeling of Cities”
Photogrammetric Modelling
“Modeling and Rendering Architecture from Photographs”
Animation
“Flocks, Herds and Schools: a Behavioral Approach”
Rendering
“Surface Splatting”
available on \\Wolverine\Public\advgfx
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Advanced Computer Graphics

9. Advanced Computer Graphics
Paper Review Form
Briefly describe the paper and its contribution to computer graphics and interactive techniques.
Is the exposition clear? How could it be improved?
Could the work be reproduced by a skilled graduate student?
How would you rate this paper on a continuous scale from 1 to 5, where:
1 = should never have been published, 2 = substantial flaws, 3 = acceptable, 4 = good, solid research, 5 = the greatest thing since pre-sliced bread
Explain your rating by discussing the strengths and weaknesses of the paper.
How would you extend this work beyond what is suggested in the future work section?
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Advanced Computer Graphics

10. Advanced Computer Graphics
Project
Create a computer generated world
Using procedural (fractal and L-system) techniques
The project will involve modelling, texturing and rendering using C++ and output to VRML files
Working in groups of 2 on clearly defined aspects of the problem:
Terrain
Trees
Sky
Buildings
Roads
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Advanced Computer Graphics