Now showing items 1-20 of 41

    • Grafields: Field-Directed Dynamic Splines for Interactive Motion Control 

      Pintado, Xavier; Fiume, Eugene (Eurographics Association, 1988)
      This paper presents an interactive system for motion control that emphasizes object interaction. The fundamental mechanism provided to support interaction between objects is the field. We present a new technique called ...
    • Tools for Efficient Photo-Realistic Computer Animation 

      Stößer, Achim; Schmitt, Alfred; Neidecker, Burkhard; Müller, Heinrich; Maus, Thomas; Leister, Wolfgang (Eurographics Association, 1988)
      The goal of the project “Occursus Cum Novo” was to generate a complex photo-realistic animation of nontrivial length in reasonable time at reasonable cost. Photographic realism comprises complex geometric models as well ...
    • IXPHIGS: A Portable Implementation of the International PHIGS Standard 

      Gorog, Jenö; Krammer, Gergely; Vincze, Arpad (Eurographics Association, 1988)
      This paper describes a "portable" object-oriented implementation of the international standard PHIGS. A rapid prototype has been achieved by making use of earlier developments : the IX-CGI module for graphical input, output ...
    • The Development of PHEX, a 3D Graphics Extension to X11 

      Clifford Jr., William H.; McConnell, John I.; Saltz, Jeffrey S. (Eurographics Association, 1988)
      Today, many computer applications require both 3 dimensional (3D) graphics and window management. The new ISO PHIGS [1] and GKS-3D [2] standards define functional interfaces for applications needing 3D graphics but do not ...
    • Application Profiles for Computer Graphics Standards - A Touch of Realism 

      Mumford, Anne M. (Eurographics Association, 1988)
      Computer graphics standards have become widely used and are now a fact of life. We have reached the stage of reviewing and extending the current standards. There is an important move within the user community which needs ...
    • COLOUR SECTION 

      Various (Eurographics Association, 1988)
    • Construction and Animation of a Synthetic Actress 

      Magnenat-Thalmann, N.; Thalmann, D. (Eurographics Association, 1988)
      This paper describes a method for creating and animating a synthetic actress. It emphasizes the methodology used to generate realistic images and motions. In particular, points which are often ignored in the literature are ...
    • Generation of High-Quality Curve and Surface with Smoothly Varying Curvature 

      Higashi, Masatake; Kaneko, Kohji; Hosaka, Mamoru (Eurographics Association, 1988)
      A method for generating curves and surfaces which satisfy constraints of tangent directions and curvature at arbitrary points and which have smoothly varying curvature is introduced. The method is geometrical determination ...
    • A New Algorithm for Converting Boundary Representation to Octree 

      Tang, Zesheng; Lu, Shengkai (Eurographics Association, 1988)
      Conversion algorithms between different object representations have become Increasingly important In soIid modeling system. In this paper, an algorithm for converting boundary representation of 3D object to octree structure ...
    • Conversion of Boundary Representations to Bintrees 

      Diehl, Rabanus (Eurographics Association, 1988)
      Methods for the conversion from boundary-representations to approximation models (especially the bintree model) are examined. A new algorithm for the conversion to the bintree model is presented. It employs an inheritence ...
    • Automatic Detection of Closed Parametric Surfaces without Interior 

      Seidel, Hans-Peter (Eurographics Association, 1988)
      This paper presents an algorithm for the automatic detection of closed piecewise parametric surfaces without any inside or outside, e.g. a Klein bottle. The algorithm is able to decide whether a given closed surface is ...
    • Conic Beta-Splines with Local Tension Control for Interactive Curve Fitting 

      Pham, Binh (Eurographics Association, 1988)
      Polynomial Beta-splines were introduced by Barsky as an extension of polynomial B-splines with bias and tension parameters which allow more flexibility in controlling shape in curve fitting. It is possible to show that a ...
    • A Compositional Semantics for Graphics 

      Pineda, Luis A. (Eurographics Association, 1988)
      In this paper a theory for developing "intelligent" interactive graphic systems is detailed. The Fregean compositionality principle is enunciated for graphical representations. Geometrical symbols and relations receive ...
    • METAVIEWS: A Process-Oriented Approach to CAD and Graphics 

      Takala, Tapio (Eurographics Association, 1988)
      A system-theoretic approach to the computer aided design (CAD) process is presented. Dependency network among objects, consisting of design operations - transactions - is formed automatically during design. The derivation ...
    • A Formal Specification of a Boundary Representation 

      Baumann, Peter (Eurographics Association, 1988)
      Geometric modellers are used in a wide spectrum of applications in computer graphics. As many other applications use the generated internal representation of solids, semantic correctness is of special importance. On the ...
    • A Procedural System for the Definition and Storage of Technical Drawings in Parametric Form 

      Cugini, U.; Folini, F.; Vicini, I. (Eurographics Association, 1988)
      The construction of a truly USER-FRIENDLY CAD system requires the acquisition and management of a tremendous amount of information which cannot be. and must not be. directly requested from the user, but which has to be ...
    • Free-Form Surfaces Modeling by Evolution Simulation 

      Lienhardt, Pascal (Eurographics Association, 1988)
      We present in this paper a procedural method for modeling free-form, planar surfaces subdivisions, which allows simulating evolutions of such subdivisions. This method is founded on the common principles deduced from ...
    • Architectures for Mass Market 3D Displays 

      Winser, Paul; Bonnet, Thierry; Dumont, Dominique; Mathieu, Yves (Eurographics Association, 1988)
      We discuss the specific architecture requirements of real time 3D display systems intended for low cost mass market products of the near future. Vertex transformation and polygon rendering are two processing aspects where ...
    • A Evalution of Some Three-Color Tiling Patterns 

      Alt, Paul; Cordonnier, Vincent (Eurographics Association, 1988)
      Some new technologies for information display use discrete arrays of cells or picture elements. Each cell displays a single color and the colors do not overlap as they do on a CRT screen. Colored cells are distributed on ...
    • Liberation from Rectangles: A Tiling Method for Dynamic Modification of Objects on Raster Displays 

      Slater, Mel; Davison, Allan; Smith, Mark (Eurographics Association, 1988)
      When graphics objects (also called segments) are used on raster display hardware, problems arise because of the mismatch between the high level requirements of object manipulation, and the low level representation from ...