Now showing items 17-35 of 35

    • Material Based Splashing of Water Drops 

      Garg, Kshitiz; Krishnan, Gurunandan G.; Nayar, Shree K. (The Eurographics Association, 2007)
      The splashing of a water drop is a fascinating phenomenon that results from a variety of complex interactions between the drop and the material it impacts. In general, the distribution of droplets of a splash depends on ...
    • Microfacet Models for Refraction through Rough Surfaces 

      Walter, Bruce; Marschner, Stephen R.; Li, Hongsong; Torrance, Kenneth E. (The Eurographics Association, 2007)
      Microfacet models have proven very successful for modeling light reflection from rough surfaces. In this paper we review microfacet theory and demonstrate how it can be extended to simulate transmission through rough ...
    • Natural Image Colorization 

      Luan, Qing; Wen, Fang; Cohen-Or, Daniel; Liang, Lin; Xu, Ying-Qing; Shum, Heung-Yeung (The Eurographics Association, 2007)
      In this paper, we present an interactive system for users to easily colorize the natural images of complex scenes. In our system, colorization procedure is explicitly separated into two stages: Color labeling and Color ...
    • Photorealistic Image Rendering with Population Monte Carlo Energy Redistribution 

      Lai, Yu-Chi; Fan, Shao Hua; Chenney, Stephen; Dyer, Charcle (The Eurographics Association, 2007)
      This work presents a novel global illumination algorithm which concentrates computation on important light transport paths and automatically adjusts energy distributed area for each light transport path. We adapt statistical ...
    • Physically Based Real-Time Translucency for Leaves 

      Habel, Ralf; Kusternig, Alexander; Wimmer, Michael (The Eurographics Association, 2007)
      This paper presents a new shading model for real-time rendering of plant leaves that reproduces all important attributes of a leaf and allows for a large number of leaves to be shaded. In particular, we use a physically ...
    • Pixel-Correct Shadow Maps with Temporal Reprojection and Shadow Test Confidence 

      Scherzer, Daniel; Jeschke, Stefan; Wimmer, Michael (The Eurographics Association, 2007)
      Shadow mapping suffers from spatial aliasing (visible as blocky shadows) as well as temporal aliasing (visible as flickering). Several methods have already been proposed for reducing such artifacts, but so far none is able ...
    • Precomputed Radiance Transfer for Dynamic Scenes Taking into Account Light Interreflection 

      Iwasaki, Kei; Dobashi, Yoshinori; Yoshimoto, Fujiichi; Nishita, Tomoyuki (The Eurographics Association, 2007)
      Fast rendering of dynamic scenes taking into account global illumination is one of the most challenging tasks in computer graphics. This paper proposes a new precomputed radiance transfer (PRT) method for rendering dynamic ...
    • Precomputed Radiance Transfer for Real-time Indirect Lighting using a Spectral Mesh Basis 

      Wang, Rui; Zhu, Jiajun; Humphreys, Greg (The Eurographics Association, 2007)
      Simulating indirect lighting effects has been a challenging topic in many real-time rendering and design applications. This paper presents a novel method, based on precomputed radiance transfer, for rendering physically ...
    • Procedural Editing of Bidirectional Texture Functions 

      Mueller, Gero; Sarlette, Ralf; Klein, Reinhard (The Eurographics Association, 2007)
      Measured material representations like Bidirectional Texture Functions or Reflectance Fields offer very realistic appearance but the user is currently not capable of changing this appearance in an effective and intuitive ...
    • The Random Camera, the Coded Aperture Camera, and Other Cameras 

      Freeman, William T. (The Eurographics Association, 2007)
      I ll describe two cameras and a comparison of many cameras. In the random camera, we use a lens which creates a pseudo-random relationship between incoming light rays and resulting sensor locations. We studied various ...
    • Rapid Acquisition of Specular and Diffuse Normal Maps from Polarized Spherical Gradient Illumination 

      Ma, Wan-Chun; Hawkins, Tim; Peers, Pieter; Chabert, Charles-Felix; Weiss, Malte; Debevec, Paul (The Eurographics Association, 2007)
      We estimate surface normal maps of an object from either its diffuse or specular reflectance using four spherical gradient illumination patterns. In contrast to traditional photometric stereo, the spherical patterns allow ...
    • Ray Tracing Dynamic Scenes using Selective Restructuring 

      Yoon, Sung-Eui; Curtis, Sean; Manocha, Dinesh (The Eurographics Association, 2007)
      We present a novel algorithm to selectively restructure bounding volume hierarchies (BVHs) for ray tracing dynamic scenes. We derive two new metrics to evaluate the culling efficiency and restructuring benefit of any BVH. ...
    • A Real-time Beam Tracer with Application to Exact Soft Shadows 

      Overbeck, Ryan; Ramamoorthi, Ravi; Mark, William R. (The Eurographics Association, 2007)
      Efficiently calculating accurate soft shadows cast by area light sources remains a difficult problem. Ray tracing based approaches are subject to noise or banding, and most other accurate methods either scale poorly with ...
    • Rendering Discrete Random Media Using Precomputed Scattering Solutions 

      Moon, Jonathan T.; Walter, Bruce; Marschner, Stephen R. (The Eurographics Association, 2007)
      This paper addresses light transport through a discrete random medium, which we define as a volume filled with macroscopic scattering geometry generated by a random process. This formulation is more general than standard ...
    • Rendering Translucent Materials Using Photon Diffusion 

      Donner, Craig; Jensen, Henrik Wann (The Eurographics Association, 2007)
      We present a new algorithm for rendering translucent materials that combines photon tracing with diffusion. This combination makes it possible to efficiently render highly scattering translucent materials while accounting ...
    • Scene Collages and Flexible Camera Arrays 

      Nomura, Yoshikuni; Zhang, Li; Nayar, Shree K. (The Eurographics Association, 2007)
      This paper presents an automatic method for creating a collage from a collection of photos of a scene taken from different viewpoints. The collage is constructed by aligning the images (in terms of their positions, rotations ...
    • Soft Shadows by Ray Tracing Multilayer Transparent Shadow Maps 

      Xie, Feng; Tabellion, Eric; Pearce, Andrew (The Eurographics Association, 2007)
      We present a method for high quality soft shadows for area lights in cinematic lighting. The method is an extension of traditional shadow maps, so it has the advantage of image based shadow methods; the algorithm s complexity ...
    • Using Photographs to Enhance Videos of a Static Scene 

      Bhat, Pravin; Zitnick, C. Lawrence; Snavely, Noah; Agarwala, Aseem; Agrawala, Maneesh; Cohen, Michael; Curless, Brian; Kang, Sing Bing (The Eurographics Association, 2007)
      We present a framework for automatically enhancing videos of a static scene using a few photographs of the same scene. For example, our system can transfer photographic qualities such as high resolution, high dynamic range ...
    • Whitted Ray-Tracing for Dynamic Scenes using a Ray-Space Hierarchy on the GPU 

      Roger, David; Assarsson, Ulf; Holzschuch, Nicolas (The Eurographics Association, 2007)
      In this paper, we present a new algorithm for interactive rendering of animated scenes with Whitted Ray-Tracing, running on the GPU. We focus our attention on the secondary rays (the rays generated by one or more bounces ...