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A Testbed for Image Synthesis
(Eurographics Association, 1991)
Image Synthesis research combines new ideas with existing techniques. A collection of software modules that provide such techniques is extremely useful for simplifying the development process. We describe the design and ...
Shading with Area Light Sources
(Eurographics Association, 1991)
This paper derives a shading model for area light sources which covers both diffuse and specular reflection. The shading model assumes ideally diffuse polygonal light sources and uses Phong’s reflection model. The model ...
Discrepancy as a Quality Measure for Sample Distributions
(Eurographics Association, 1991)
Discrepancy, a scalar measure of sample point equidistribution, is discussed in the context of Computer Graphics sampling problems. Several sampling strategies and their discrepancy characteristics are examined. The ...
Sampling and Anti-Aliasing of Discrete 3-D Volume Density Textures
(Eurographics Association, 1991)
In recent years, a number of techniques have been developed for rendering volume effects (haze, fog, smoke, clouds, etc.) in order to enhance reality in computer-generated imagery as well as to improve the performance of ...
Serial cuttings matching: An application to muscle fiber characterization
(Eurographics Association, 1991)
In this paper, we present one important aspect of a complete application of numerical image analysis in biology. We want to analyse a biological object through serial cuttings to measure morphological and biochemical ...
A constraint-based UIMS using graph unification
(Eurographics Association, 1991)
This paper describes an experimental UIMS developed to investigate methods of combining and reusing objects within a constraint-based system. A novel approach based on graph-unification facilitated the definition of composite ...
FACES: Facial Animation, Construction and Editing System
(Eurographics Association, 1991)
The aim of the Facial Animation, Construction and Editing System (FACES) is to provide a software simulation of the human face. Attention has focused on the face as an important means of non-verbal communication. The ...
Liberation from Flatland: 3D Interaction Based on the Desktop Bat
(Eurographics Association, 1991)
A novel device for 3D interaction is introduced, the Desktop Bat. This device is an evolutionary development of a mouse. It is like a mouse in that it is used on a desktop, but provides 5 degrees of freedom since in ...
Integrating Inheritance and Composition in an Objective Presentation Model for Multiple Media
(Eurographics Association, 1991)
A formal model is presented which combines, in a single structure called a tangle, the power to express both the composition of aggregate objects, and the selective inheritance of object properties over a number of instances ...
A DDA Octree Traversal Algorithm for Ray Tracing
(Eurographics Association, 1991)
A spatial traversal algorithm for ray tracing that combines the memory efficiency of an octree and the traversal speed of a uniform voxel space is described. A new octree representation is proposed and an implementation ...