samackay@watcgl.waterloo.edu (Stephen MacKay) (06/07/90)
For those who missed a fine conference, below is the Table of Contents for the Proceedings of Graphics Interface '90, held 14-18 May, 1990 in Halifax, N.S., Canada. To order your copy, send Canadian requests to CIPS and all others to Morgan Kaufmann at the following addresses: Canadian Information Morgan Kaufmann Publishers Processing Society Order Fulfillment Center 243 College St., 5th Floor P.O. Box 50490 Toronto, Ontario, Canada Palo Alto, CA 94303 M5T 2Y1 USA Tel: (416) 593-4040 (415) 965-4081 Price: Cdn$35.00 US$40.00 If you require any additional information about the proceedings or the conference please feel free to contact me. Graphics Interface '91 will be held in Calgary, Alberta, 3-7 June 1991; draft papers are due 31 October 1990. ...Stephen MacKay Proceedings Editor, GI '90 s.mackay@nrc.ca (613) 993-6553 T A B L E O F C O N T E N T S Page ALGORITHMS An Adaptive Subdivision Algorithm for Crack Prevention in the Display of Parametric Surfaces Forsey and Klassen 1 Real-Time Hidden-Line Elimination for a Rotating Polyhedral Scene Using the Aspect Representation Plantinga, Dyer and Seales 9 Image and Intervisibility Coherence in Rendering Marks, Walsh, Christensen and Friedell 17 Colored Noise Inversion in Digital Halftoning Geist and Reynolds 31 ANIMATION Issues in the Automated Generation of Animated Presentations Karp and Feiner 39 Towards Generalised Motion Dynamics for Animation Herr and Wyvill 49 Goal-Directed Human Animation of Multiple Movements Morawetz and Calvert 60 RENDERING & RAY TRACING Robust Ray Intersection with Interval Arithmetic Mitchell 68 Approximate Ray Tracing Dauenhauer and Semwal 75 Octant Priority for Radiosity Image Rendering Wang and Davis 83 Imprecise Computation and Load Sharing in Computer Generated Imaging Systems Berger and Zhao 92 USER INTERFACE Understanding Visual Effects in a Windowed Environment Sun, Cowan and Booth 100 CTS: An Interactive Technique for Manipulating Structured Text Burbidge and Olsen 108 A Taxonomy of Uses of Interaction History Lee 113 The Datapaper: Living in the Virtual World Green and Shaw 123 CMCCS ACHIEVEMENT AWARD WINNER'S INVITED PAPER Twenty-four Years of Computer Graphics at NRC Marceli Wein 131 INTERACTIVE SYSTEMS SCULPT: An Interactive Solid Modeling Tool Naylor 138 The Concept and Design of a Virtual Laboratory Mercer, Prusinkiewicz and Hanan 149 A Prototype System for Design Automation via the Browsing Paradigm Kochhar 156 DATA STRUCTURES & ALGORITHMS Toward Reliable Polygon Set Operations Friedell and Kochhar 167 Shaded Rendering and Shadow Computation for Polyhedral Animation Seales and Dyer 175 Using Convex Differences in Hierarchical Representations of Polygonal Maps Rappoport 183 Constructing Orientation Adaptive Quadtrees Nickerson and Hartati 190 RAY TRACING Exploiting Temporal Coherence in Ray Tracing Chapman, Calvert and Dill 196 A Ray Tracing Method for Illumination Calculation in Diffuse-Specular Scenes Shirley 205 Voxel Occlusion Testing: A Shadow Determination Accelerator for Ray Tracing Woo and Amanatides 213 Some Regularization Problems in Ray Tracing Amanatides and Mitchell 221 MODELLING Pruned Bezier Curves Barry, DeRose and Goldman 229 An Object Models Development Tool to Support Image Understanding System Chen and Li 239 Constrained, Grammar-Directed Generation of Landscapes Friedell and Schulmann 244 INVITED PAPER An Intuitive Description of Parametric Splines in Computer Graphics Brian Barsky 252 VISUALISATION Visualization of the Development of Multicellular Structures Fracchia and Prusinkiewicz and de Boer 267 Nassi-Shneiderman Diagrams and Tabletalk Epstein 277 Definitive Interfaces as a Visualisation Mechanism Beynon and Yung 285 Visualizing the Execution of Multi-processor Real-Time Programs Flinn and Cowan 293