Browsing Issue 3 by Title

Now showing items 33-41 of 41

    • Radiosity with Well Distributed Ray Sets 

      Neumann, Laszlo; Neumann, Attila; Bekaert, Philippe (Blackwell Publishers Ltd and the Eurographics Association, 1997)
      In this paper we present a new radiosity algorithm, based on the notion of a well distributed ray set (WDRS). A WDRS is a set of rays, connecting mutually visible points and patches, that forms an approximate representation ...

    • A Rendering Equation for Specular Transfers and Its Integration into Global Illumination 

      Yu, Yizhou; Wu, Hong (Blackwell Publishers Ltd and the Eurographics Association, 1997)
      In this paper, we present a rigorous theoretical formulation of the fundamental problem-indirect illumination from area sources via curved ideal specular surfaces. Intensity and area factors are introduced to clarify this ...

    • Robust Computation of Intersection Graph between Two Solids 

      Nakamura, Hiroyuki; Higashi, Masatake; Hosaka, Mamoru (Blackwell Publishers Ltd and the Eurographics Association, 1997)
      We propose a new robust algorithm for Boolean operations on solid models. The algorithm produces a consistent intersection graph between two input solids whose geometrical data are represented in floating point numbers. ...

    • Selective Pixel Transmission for Navigating in Remote Virtual Environments 

      Mann, Yair; Cohen-Or, Daniel (Blackwell Publishers Ltd and the Eurographics Association, 1997)
      This paper presents a technique to improve the performance of a walkthrough in remote virtual environments, where a scene is rendered jointly by the server and the client, in order to reduce the network requirements as ...

    • Steering Image Generation with Wavelet Based Perceptual Metric 

      Gaddipatti, Ajeetkumar; Machiraju, Raghu; Yagel, Roni (Blackwell Publishers Ltd and the Eurographics Association, 1997)
      It is often the case that images generated by image synthesis algorithms are judged by visual examination. The user resorts to an iterative refinement process of inspection and rendering until a satisfactory image is ...

    • Stochastic Dynamics: Simulating the Effects of Turbulence on Flexible Structures 

      Stam, Jos (Blackwell Publishers Ltd and the Eurographics Association, 1997)
      This paper addresses the problem of realistically simulating the motion of tree-branches subjected to turbulence. Since the resulting motion is random in nature, we model it as a stochastic process. We synthesize this ...

    • Tunnel-Free Supercover 3D Polygons and Polyhedra 

      Andres, Eric; Nehlig, Philippe; Francon, Jean (Blackwell Publishers Ltd and the Eurographics Association, 1997)
      A new discrete 3D line and 3D polygon, called Supercover 3D line and Supercover 3D polygon, are introduced. Analytical definitions are provided. The Supercover 3D polygon is a tunnel free plane segment defined by vertices ...

    • Using Subdivision on Hierarchical Data to Reconstruct Radiosity Distribution 

      Kobbelt, Leif; Stamminger, Marc; Seidel, Hans-Peter (Blackwell Publishers Ltd and the Eurographics Association, 1997)
      Computing global illumination by finite element techniques usually generates a piecewise constant approximation of the radiosity distribution on surfaces. Directly displaying such scenes generates artefacts due to ...

    • Virtually Documented Environments: A New Interface Paradigm for Task-oriented Access to Information 

      Kakez, Samory; Conan, Vania; Bisson, Pascal (Blackwell Publishers Ltd and the Eurographics Association, 1997)
      We present a suitable virtually documented environment system providing the user with high level interaction possibilities. The system is dedicated to applications where the operator needs to have his hands free in order ...