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Now showing items 21-30 of 45
RENDERING MIRAGES AND OTHER ATMOSPHERIC PHENOMENA
(Eurographics Association, 1990)
The past few years have seen some very impressive results in rendering natural phenomena. This paper addresses the problem of how to model and render optical illusions brought about by atmospheric refraction. Refraction ...
A Stochastic Functional Approach for Terrain Modeling
(Eurographics Association, 1990)
A new functional modeling approach - -functional modeling, is presented to depict various classes of natural terrain. While this approach possesses the functions of several previous methods, it does not suffer the drawbacks ...
AN INTERACTIVE DEBUGGER FOR PHIGS
(Eurographics Association, 1990)
The Programmer’s Hierarchical Interactive Graphics System (PHIGS) is an International Standard for integrating application modelling and interactive computer graphics. With PHIGS, application models are constructed from ...
PRELOG - A SYSTEM FOR PRESENTING AND RENDERING LOGIC SPECIFICATIONS OF INTERACTIVE SYSTEMS
(Eurographics Association, 1990)
Formal specifications provide the non-specialist with an extremely poor impression of what it would be like to interact with a computer system. Prototypes provide a far better impression of the ‘look and feel’ of possible ...
3D MODELLING AND MOTION OF DEFORMABLE SOLIDS FROM 2D IMAGES
(Eurographics Association, 1990)
Our work purpose is to elaborate a geometric and motional model for deformable solids, known only by a very small number of general crosssections images. We start from a generic 3D model of the studied solid we distort ...
Fast Rendering of Arbitrary Distributed Volume Densities
(Eurographics Association, 1990)
In recent years a number of techniques have been developed for rendering volume effects (haze, fog, smoke, clouds, etc.). These techniques are either time consuming (ray-tracing, radiosity) or do not account for arbitrary ...
INTERPOLATING CURVE NETWORKS WITH NEW BLENDING PATCHES
(Eurographics Association, 1990)
This paper describes methods of c o n s t r u c t i n g s u r f a c e patches which s a t i s f y independently given boundary conditions on a l l i t s four or t h r e e s i d e s . A patch c o n s i s t s of two p a r t ...
The Architecture of a Prototype System for Drawing Data Structures
(Eurographics Association, 1990)
Automatic drawing of aesthetically pleasing data structure diagrams is a challenging problem which has attracted much research attention. In building such a system, we are confronted with four basic problems: (1) proper ...
EDEN - AN EDITOR ENVIRONMENT FOR OBJECT- ORIENTED GRAPHICS EDITING
(Eurographics Association, 1990)
Systems allowing the creation and manipulation of graphical information (so-called Graphic Editors) have become essential in various fields of applications. At the same time the typical user of such a system has changed. ...
Hemi-Cube Ray-Tracing: A Method for Generating Soft Shadows
(Eurographics Association, 1990)
This paper presents a new ray-tracing technique for generating soft shadows. The technique treats scenes consisting of light sources and opaque objects which are polygons or polyhedra of arbitrary shape and size. To determine ...