EGWR: Eurographics Workshop on Rendering: Recent submissions

Now showing items 281-300 of 440

    • Adaptive Numerical Cumulative Distribution Functions for Efficient Importance Sampling 

      Lawrence, Jason; Rusinkiewicz, Szymon; Ramamoorthi, Ravi (The Eurographics Association, 2005)
      As image-based surface reflectance and illumination gain wider use in physically-based rendering systems, it is becoming more critical to provide representations that allow sampling light paths according to the distribution ...

    • An Analytical Model for Skylight Polarisation 

      Wilkie, A.; Ulbricht, C.; Tobler, Robert F.; Zotti, G.; Purgathofer, W. (The Eurographics Association, 2004)
      Under certain circumstances the polarisation state of the illumination can have a significant influence on the appearance of scenes; outdoor scenes with specular surfaces - such as water bodies or windows - under clear, ...

    • Lattice-Boltzmann Lighting 

      Geist, Robert; Rasche, Karl; Westall, James; Schalkoff, Robert (The Eurographics Association, 2004)
      A new technique for lighting participating media is suggested. The technique is based on the lattice-Boltzmann method, which is gaining popularity as alternative to finite-element methods for flow computations, due to its ...

    • Practical Rendering of Multiple Scattering Effects in Participating Media 

      Premoze, Simon; Ashikhmin, Michael; Tessendorf, Jerry; Ramamoorthi, Ravi; Nayar, Shree (The Eurographics Association, 2004)
      Volumetric light transport effects are significant for many materials like skin, smoke, clouds, snow or water. In particular, one must consider the multiple scattering of light within the volume. While it is possible to ...

    • All-Frequency Relighting of Non-Diffuse Objects using Separable BRDF Approximation 

      Wang, Rui; Tran, John; Luebke, David (The Eurographics Association, 2004)
      This paper presents a technique, based on pre-computed light transport and separable BRDF approximation, for interactive rendering of non-diffuse objects under all-frequency environment illumination. Existing techniques ...

    • Efficient Rendering of Atmospheric Phenomena 

      Riley, Kirk; Ebert, David S.; Kraus, Martin; Tessendorf, Jerry; Hansen, Charles (The Eurographics Association, 2004)
      Rendering of atmospheric bodies involves modeling the complex interaction of light throughout the highly scattering medium of water and air particles. Scattering by these particles creates many well-known atmospheric optical ...

    • Animatable Facial Reflectance Fields 

      Hawkins, Tim; Wenger, Andreas; Tchou, Chris; Gardner, Andrew; Göransson, Fredrik; Debevec, Paul (The Eurographics Association, 2004)
      We present a technique for creating an animatable image-based appearance model of a human face, able to capture appearance variation over changing facial expression, head pose, view direction, and lighting condition. Our ...

    • All-Frequency Precomputed Radiance Transfer for Glossy Objects 

      Liu, Xinguo; Sloan, Peter-Pike; Shum, Heung-Yeung; Snyder, John (The Eurographics Association, 2004)
      We introduce a method based on precomputed radiance transfer (PRT) that allows interactive rendering of glossy surfaces and includes shadowing effects from dynamic, "all-frequency" lighting. Specifically, source lighting ...

    • A Novel Hemispherical Basis for Accurate and Efficient Rendering 

      Gautron, Pascal; Krivanek, Jaroslav; Pattanaik, Sumanta; Bouatouch, Kadi (The Eurographics Association, 2004)
      This paper presents a new set of hemispherical basis functions dedicated to hemispherical data representation. These functions are derived from associated Legendre polynomials. We demonstrate the usefulness of this basis ...

    • Spherical Harmonic Gradients for Mid-Range Illumination 

      Annen, Thomas; Kautz, Jan; Durand, Frédo; Seidel, Hans-Peter (The Eurographics Association, 2004)
      Spherical harmonics are often used for compact description of incident radiance in low-frequency but distant lighting environments. For interaction with nearby emitters, computing the incident radiance at the center of an ...

    • Feature-Based Textures 

      Ramanarayanan, G.; Bala, K.; Walter, B. (The Eurographics Association, 2004)
      This paper introduces feature-based textures, a new image representation that combines features and samples for high-quality texture mapping. Features identify boundaries within an image where samples change discontinuously. ...

    • Smooth Reconstruction and Compact Representation of Reflectance Functions for Image-based Relighting 

      Masselus, Vincent; Peers, Pieter; Dutré, Philip; Willemsy, Yves D. (The Eurographics Association, 2004)
      In this paper we present a new method to reconstruct reflectance functions for image-based relighting. A reflectance function describes how a pixel in a photograph is observed depending on the incident illumination on the ...

    • Progressively-Refined Reflectance Functions from Natural Illumination 

      Matusik, Wojciech; Loper, Matthew; Pfister, Hanspeter (The Eurographics Association, 2004)
      In this paper we present a simple, robust, and efficient algorithm for estimating reflectance fields (i.e., a description of the transport of light through a scene) for a fixed viewpoint using images of the scene under ...

    • Combining Higher-Order Wavelets and Discontinuity Meshing: a Compact Representation for Radiosity 

      Holzschuch, N.; Alonso, L. (The Eurographics Association, 2004)
      The radiosity method is used for global illumination simulation in diffuse scenes, or as an intermediate step in other methods. Radiosity computations using Higher-Order wavelets achieve a compact representation of the ...

    • Bixels: Picture Samples with Sharp Embedded Boundaries 

      Tumblin, Jack; Choudhury, Prasun (The Eurographics Association, 2004)
      Pixels store a digital image as a grid of point samples that can reconstruct a limited-bandwidth continuous 2-D source image. Although convenient for anti-aliased display, these bandwidth limits irreversibly discard important ...

    • A Self-Reconfigurable Camera Array 

      Zhang, Cha; Chen, Tsuhan (The Eurographics Association, 2004)
      This paper presents a self-reconfigurable camera array system that captures video sequences from an array of mobile cameras, renders novel views on the fly and reconfigures the camera positions to achieve better rendering ...

    • Generalized Displacement Maps 

      Wang, Xi; Tong, Xin; Lin, Stephen; Hu, Shimin; Guo, Baining; Shum, Heung-Yeung (The Eurographics Association, 2004)
      In this paper, we introduce a real-time algorithm to render the rich visual effects of general non-height-field geometric details, known as mesostructure. Our method is based on a five-dimensional generalized displacement ...

    • All-focused light field rendering 

      Kubota, Akira; Takahashi, Keita; Aizawa, Kiyoharu; Chen, Tsuhan (The Eurographics Association, 2004)
      We present a novel reconstruction method that can synthesize an all in-focus view from under-sampled light fields, significantly suppressing aliasing artifacts. The presented method consists of two steps; 1) rendering ...

    • Hardware Accelerated Visibility Preprocessing using Adaptive Sampling 

      Nirenstein, S.; Blake, E. (The Eurographics Association, 2004)
      We present a novel aggressive visibility preprocessing technique for general 3D scenes. Our technique exploits commodity graphics hardware and is faster than most conservative solutions, while simultaneously not overestimating ...

    • CC Shadow Volumes 

      Lloyd, D. Brandon; Wendt, Jeremy; Govindaraju, Naga K.; Manocha, Dinesh (The Eurographics Association, 2004)
      We present a technique that uses culling and clamping (CC) for accelerating the performance of stencil-based shadow volume computation. Our algorithm reduces the fill requirements and rasterization cost of shadow volumes ...