Now showing items 1-20 of 4874

    • AVLSI Chip for Ray Tracing Bicubic Patches 

      Pulleyblank, R W.; Kapenga, J. (The Eurographics Association, 1986)
      A VLSI chip for ray tracing bicubic patches in Bezier form is explored. The purpose of the chip is to calculate the intersection point of a ray with the bicubic patch to a specified level of accuracy, returning the location ...
    • Developments in High Performance CGI Systems 

      Grimsdale, R L.; Lister, P. F. (The Eurographics Association, 1986)
      This contribution describes some work being undertaken in the design andimplementation of architectures for high performance Computer Image Generationfor a range of applications from workstations to flight simulator visual ...
    • CSG Hidden Surface Algorithms for VLSI Hardware Systems 

      Jansen, Frederik W. (The Eurographics Association, 1986)
      Constructive Solid Geometry (CSG) is a solid modeling representation thatdefines objects ·as Boolean combinations of primitive solids. For thedisplay of such objects, both the visibility problem and the problem ofcombining ...
    • A Survey of Simulator Requirements 

      Joseph, H. (The Eurographics Association, 1986)
      Simulators have been developed to train pilots, sailors or car drivers withoutthe costs and risks of moving their real vehicles. To obtain high success intraining, the simulators have to provide a high level of realism. ...
    • A Visual System for a Traffic Simulator 

      Möller, R. (The Eurographics Association, 1986)
      The prototype of a modular CGI-system for real time simulation in atraffic simulator will be presented. It will be shown, that withthe proposed configuration of a large asymmetric multiprocessorsystem, organized in different ...
    • Looking at Workstation Architectures from the Viewpoint of Interaction 

      Krömker, Detlef (The Eurographics Association, 1986)
      Today's design of sophisticated graphics workstations may be characterized by the terms 3D-system, user driven, object-oriented user interfaceand multiple-windows system with the challenge to create high levelinterfaces ...
    • Towards a Z-Buffer and Ray-Tracing Multimode System based on Parallel Architecture and VLSI chips 

      P.Lemy, (The Eurographics Association, 1986)
      After the hidden surfaces algorithms for 3D rastergraphics, hardware design isthe main problem, for many applicat ions, such as : Audiovisual animat ions. CADCAM,and simulation.After a short description of our CUBI 7 system ...
    • Towards a 3-D Graphics Workstation 

      Kaufmann, Arie (The Eurographics Association, 1986)
      A voxel-map based architecture which lays the foundations for a 3-D graphics workstation,called the CUBE Workstation, is presented. The architecture is centered around a largecubic frame-buffer of voxels, operated on by ...
    • Utilization of VLSI for Creating an Active Data Base of 3-D Geometric Models 

      Skyttä, J.; Takala, T. (The Eurographics Association, 1986)
      Parallelism of geometric computation can be achieved by distributing the computation efforts according to essentially three different strategies, based on functional, spatial and structural division, respectively (Mantyla ...
    • Display Architecture for VLSI -based Graphics Workstations 

      Hagen, P. J. W. ten; Kujik, A. A.M.; Trienekens, C. G. (The Eurographics Association, 1986)
      At present, two popular development areas in computer graphics are improvement ofinteraction behaviour and more realistic graphics.The architecture for a high quality interactive workstation proposed in this work isdesigned ...
    • "Position Paper:Display Hardware for Boolean Expression Models" 

      Thomas, A. L. (The Eurographics Association, 1986)
      In any discussion of graphics hardware there appear to be two basic positions which can be adopted. The first is that of the technologist, who is primarily concerned with what it is possible to make and how to make it. The ...
    • A Multiple Application Graphics Integrated CircuitMAGIC II 

      Finch, H.R; Agate, M.; Garel, A.A.; Lister, P.F.; Grimsdale, RL (The Eurographics Association, 1987)
      This paper describes the design considerations for a polygon graphics geometry processor subsystem. The architecture for a Multiple Application Graphics Integrated Circuit (MAGIC II) is outlined, and low, medium and high ...
    • Cellular Architectures and Algorithmsfor Image Synthesis 

      Meriaux, Michel (The Eurographics Association, 1987)
      The aim of this paper is to provide some refiexions and partial results about cellular architectures for image synthesis and graphics. As some steps of image synthesis involve a long processing time, quite incompatible ...
    • Pixel-Planes 4: A Summary 

      Eyles, John; Austint, John; Fuchs, Henry; Greer, Trey; Poulton, John (The Eurographics Association, 1987)
      We describe the current state of the Pixel-planes research project, whose goal is to develop powerful raster graphics systems for the next generation of workstations, The first full-scale prototype has been in regular use ...
    • Comparison of Two Floatin~Point Arithmetic Unitsfor a Precomputer in a Graphics System forReal Time Simulation 

      Möller, Reinhard (The Eurographics Association, 1987)
      This paper compares two realized concepts of floating point units in a visual system for a traffic simulator. The hardware structure of a Transformation Processor is described, with which a set of 1x4 vectors can be floating ...
    • A Two-Dimensional Frame Buffer Processor 

      Kaufman, Arie (The Eurographics Association, 1987)
      The two-dimensional Frame Buffer Processor (FBP) is part of a proposed raster graphics computer architecture. It is a hardware-oriented organisation of a variation of a bitblt engine with a much richer repertoire. In ...
    • New Algorithms for Computer Graphics 

      Ovennars, Mark H. (The Eurographics Association, 1987)
      "IntroductionThe area of computational geometry deals with the study of algorithms for problems concerning geometric objects like e.g. lines, polygons, circles, etc. in the plane and in higher dimensional space. Since its ...
    • An O(log N) Parallel Time Exact Hidden-LineAlgorithm 

      Dévai, F. (The Eurographics Association, 1987)
      "Parallel algorithms are given for the exact solution of the hidden-line problem. Most of the parallel algorithms proposed for visibility problems in the literature give approximate solutions. and thus cannot yield an upper ...
    • Reconstructing Solids from Tomographic Scans --The PARCUM II System-· 

      Jackèl, D. (The Eurographics Association, 1987)
      The computer-aided design of mechanical parts is supported by sophisticated geometric modelers and visualized by high-performance raster graphics systems allowing for a realistic display. The geometric modeler accepts the ...
    • A Multi-Processor Workstationwith a Logic-Enhanced Distributed Frame Buffer 

      Jansen, Frederik W. (The Eurographics Association, 1987)
      A graphics workstation should offer both a wide variety of 20 and 3D realtime display functions as well as a programmable parallel-processing capacity for large processing tasks. A system concept is proposed that meets ...