Advanced Computer Graphics: Introduction James Gain Department of Computer Science University of Cape Town jgain@cs.uct.ac.za Advanced Computer GraphicsCollaborative Visual Computing Laboratory

Advanced Computer Graphics Objectives To introduce advanced graphics To provide an overview and context for the course To outline the course requirements and evaluation 24/11/2018 Advanced Computer Graphics

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) 24/11/2018 Advanced Computer Graphics

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 24/11/2018 Advanced Computer Graphics

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 24/11/2018 Advanced Computer Graphics

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 24/11/2018 Advanced Computer Graphics

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 24/11/2018 Advanced Computer Graphics

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 24/11/2018 Advanced Computer Graphics

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? 24/11/2018 Advanced Computer Graphics

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 24/11/2018 Advanced Computer Graphics