Volume 27 (2008): Recent submissions

Now showing items 61-80 of 240

    • Accelerating Ray Tracing using Constrained Tetrahedralizations 

      Lagae, Ares; Dutre, Philip (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      In this paper we introduce the constrained tetrahedralization as a new acceleration structure for ray tracing. A constrained tetrahedralization of a scene is a tetrahedralization that respects the faces of the scene geometry. ...

    • Free Form Incident Light Fields 

      Unger, J.; Gustavson, S.; Larsson, P.; Ynnerman, A. (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      This paper presents methods for photo-realistic rendering using strongly spatially variant illumination captured from real scenes. The illumination is captured along arbitrary paths in space using a high dynamic range, ...

    • Sample Based Visibility for Soft Shadows using Alias-free Shadow Maps 

      Sintorn, Erik; Eisemann, Elmar; Assarsson, Ulf (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      This paper introduces an accurate real-time soft shadow algorithm that uses sample based visibility. Initially, we present a GPU-based alias-free hard shadow map algorithm that typically requires only a single render pass ...

    • Fast Soft Self-Shadowing on Dynamic Height Fields 

      Snydre, John; Nowrouzezahrai, Derek (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      We present a new, real-time method for rendering soft shadows from large light sources or lighting environments on dynamic height fields. The method first computes a horizon map for a set of azimuthal directions. To reduce ...

    • Enhancement of Bright Video Features for HDR Displays 

      Didyk, P.; Mantiuk, R.; Hein, M.; Seidel, Hans-Peter (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      To utilize the full potential of new high dynamic range (HDR) displays, a system for the enhancement of bright luminous objects in video sequences is proposed. The system classifies clipped (saturated) regions as lights, ...

    • ScribbleBoost: Adding Classification to Edge-Aware Interpolation of Local Image and Video Adjustments 

      Li, Y.; Adelson, E.; Agarwala, A. (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      One of the most common tasks in image and video editing is the local adjustment of various properties (e.g., saturation or brightness) of regions within an image or video. Edge-aware interpolation of user-drawn scribbles ...

    • Combining Confocal Imaging and Descattering 

      Fuchs, Christian; Heinz, Michael; Levoy, Marc; Seidel, Hans-Peter; Lensch, Hendrik P. A. (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      In translucent objects, light paths are affected by multiple scattering, which is polluting any observation. Confocal imaging reduces the influence of such global illumination effects by carefully focusing illumination and ...

    • Compact, Fast and Robust Grids for Ray Tracing 

      Lagae, Ares; Dutre, Philip (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      The focus of research in acceleration structures for ray tracing recently shifted from render time to time to image, the sum of build time and render time, and also the memory footprint of acceleration structures now ...

    • Shallow Bounding Volume Hierarchies for Fast SIMD Ray Tracing of Incoherent Rays 

      Dammertz, H.; Hanika, J.; Keller, A. (The Eurographics Association and Blackwell Publishing Ltd, 2008)

    • iCheat: A Representation for Artistic Control of Indirect Cinematic Lighting 

      Obert, Juraj; Krivanek, Jaroslav; Pellacini, Fabio; Sykora, Daniel; Pattanaik, Sumanta (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      Thanks to an increase in rendering efficiency, indirect illumination has recently begun to be integrated in cinematic lighting design, an application where physical accuracy is less important than careful control of scene ...

    • Feature-guided Image Stippling 

      Kim, Dongyeon; Son, Minjung; Lee, Yunjin; Kang, Henry; Lee, Seungyong (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      This paper presents an automatic method for producing stipple renderings from photographs, following the style of professional hedcut illustrations. For effective depiction of image features, we introduce a novel dot ...

    • Stylized Vector Art from 3D Models with Region Support 

      Eisemann, Elmar; Winnemoeller, Holger; Hart, John C.; Salesin, David (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      We describe a rendering system that converts a 3D meshed model into the stylized 2D filled-region vector-art commonly found in clip-art libraries. To properly define filled regions, we analyze and combine accurate but ...

    • Rendering Trees with Indirect Lighting in Real Time 

      Boulanger, K.; Bouatouch, K.; Pattanaik, S. (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      High quality lighting is one of the challenges for interactive tree rendering. To this end, this paper presents a lighting model allowing real-time rendering of trees with convincing indirect lighting. Rather than defining ...

    • Geometry-Aware Framebuffer Level of Detail 

      Yang, Lei; Sander, Pedro V.; Lawrence, Jason (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      This paper introduces a framebuffer level of detail algorithm for controlling the pixel workload in an interactive rendering application. Our basic strategy is to evaluate the shading in a low resolution buffer and, in a ...

    • Frame Sequential Interpolation for Discrete Level-of-Detail Rendering 

      Scherzer, Daniel; Wimmer, Michael (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      In this paper we present a method for automatic interpolation between adjacent discrete levels of detail to achieve smooth LOD changes in image space. We achieve this by breaking the problem into two passes: We render the ...

    • Lazy Solid Texture Synthesis 

      Dong, Yue; Lefebvre, Sylvain; Tong, Xin; Drettakis, George (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      Existing solid texture synthesis algorithms generate a full volume of color content from a set of 2D example images. We introduce a new algorithm with the unique ability to restrict synthesis to a subset of the voxels, ...

    • Ptex: Per-Face Texture Mapping for Production Rendering 

      Burley, Brent; Lacewell, Dylan (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      Explicit parameterization of subdivision surfaces for texture mapping adds significant cost and complexity to film production. Most parameterization methods currently in use require setup effort, and none are completely ...

    • Real-time Shading with Filtered Importance Sampling 

      Kivanek, Jaroslav; Colbert, Mark (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      We propose an analysis of numerical integration based on sampling theory, whereby the integration error caused by aliasing is suppressed by pre-filtering. We derive a pre-filter for evaluating the illumination integral ...

    • An Analysis of the In-Out BRDF Factorization for View-Dependent Relighting 

      Mahajan, Dhruv; Tseng, Yu-Ting; Ramamoorthi, Ravi (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      Interactive rendering with dynamic natural lighting and changing view is a long-standing goal in computer graphics. Recently, precomputation-based methods for all-frequency relighting have made substantial progress in this ...

    • Exploiting Visibility Correlation in Direct Illumination 

      Clarberg, Petrik; Akenine-Moeller, Tomas (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      The visibility function in direct illumination describes the binary visibility over a light source, e.g., an environment map. Intuitively, the visibility is often strongly correlated between nearby locations in time and ...