EG UK Theory and Practice of Computer Graphics 2007: Recent submissions

Now showing items 21-31 of 31

    • Simulating Film Grain using the Noise-Power Spectrum 

      Stephenson, Ian; Saunders, Arthur (The Eurographics Association, 2007)
      Film grain is an essential part of real images. The artifacts it introduces add character to images, which can otherwise appear too perfect. This paper considers the synthesis of film grain based upon its noise-power ...

    • Scanline Edge-flag Algorithm for Antialiasing 

      Kallio, Kiia (The Eurographics Association, 2007)
      In this paper, a novel algorithm for rendering antialiased 2D polygons is presented. Although such algorithms do exist, they are inefficient when comparing to non-antialiased alternatives. This has lead to a situation where ...

    • Speeding Up Isosurfacing: The Matryoshka Algorithm 

      Lopes, Sergio; Lopes, Adriano; Santos, M. Prospero dos (The Eurographics Association, 2007)
      We propose a hybrid algorithm for isosurface visualization that embraces both polygon rendering and direct surface rendering concepts. It uses raytracing to achieve high image quality but avoids the associated empty ray ...

    • Advantages of allowing Hexagonal Pixels to be used as a Boundary Description Format 

      Turner, Martin J. (The Eurographics Association, 2007)
      This paper considers some algorithmic extensions and some specific advantages when using a hexagonal pixel array as compared with the usual practice of using a rectangular or square pixel raster array. Discussed are some ...

    • A Distance Hierarchy to Detect Collisions Between Deformable Objects 

      Madera, Francisco A.; Day, Andy M.; Laycock, Stephen D. (The Eurographics Association, 2007)
      To detect collisions between deformable objects we introduce an algorithm that computes the closest distances between certain feature points defined in their meshes. The strategy is to divide the objects into regions and ...

    • Stability Analysis of Filtered Mass-Spring Systems 

      Ahmad, Alexandre; Adly, Samir; Terraz, Olivier; Ghazanfarpour, Djamchid (The Eurographics Association, 2007)
      Mass-spring systems simulations rely on the numerical integration method used for solving the resulting ordinary differential equations. Implicit schemes, which solve such equations, are unconditionally stable and are thus ...

    • Perception-Based Lighting-by-Example 

      Ha, Hai Nam; Olivier, Patrick (The Eurographics Association, 2007)
      In computer graphics, easy-to-use tools for configuring lighting for 3D scenes are required by users. Following a perception-based lighting design framework, which models image quality using cognitively inspired objective ...

    • GPU-Based Wind Animation of Trees 

      Skjermo, Jo (The Eurographics Association, 2007)
      This paper present a simplified approach to wind animation of natural looking tree stems and branches. The presented approach is composed from several earlier works by a number of authors, each adapted to increase its ...

    • MTCut: GPU-based Marching Tetra Cuts 

      Monclus, Eva; Navazo, Isabel; Vazquez, Pere-Pau (The Eurographics Association, 2007)
      Isosurface construction and rendering based on tetrahedral grids has been adequately implemented on programmable graphics hardware. In this paper we present MTCut: a volume cutting algorithm that is able to cut isosurfaces ...

    • The Dynamic Animation of Ambulatory Arthropods 

      Cenydd, Llyr ap; Teahan, William (The Eurographics Association, 2007)
      Whilst advances in real-time computer graphics continue to permit the development of increasingly vivid virtual worlds, the degree of interaction between the environment and the animated characters within remains relatively ...

    • Real-time Fluid Simulation Coupled with Cloth 

      Harada, Takahiro; Koshizuka, Seiichi; Kawaguchi, Yoichiro (The Eurographics Association, 2007)
      This paper presents a real-time simulation method for coupling of cloth and fluids computed by using Smoothed Particle Hydrodynamics (SPH). To compute interaction between cloth consisting of several polygons and fluid ...