Browsing EGSR13: 24th Eurographics Symposium on Rendering by Subject "I.3.7 [Computer Graphics]"

Now showing items 1-6 of 6

    • An Area-Preserving Parametrization for Spherical Rectangles 

      Ureña, Carlos; Fajardo, Marcos; King, Alan (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We present an area-preserving parametrization for spherical rectangles which is an analytical function with domain in the unit rectangle [0;1]2 and range in a region included in the unit-radius sphere. The parametrization ...

    • Exponential Soft Shadow Mapping 

      Shen, Li; Feng, Jieqing; Yang, Baoguang (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      In this paper we present an image-based algorithm to render visually plausible anti-aliased soft shadows in real time. Our technique employs a new shadow pre-filtering method based on an extended exponential shadow mapping ...

    • Line-Sweep Ambient Obscurance 

      Timonen, Ville (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Screen-space ambient occlusion and obscurance have become established methods for rendering global illumi- nation effects in real-time applications. While they have seen a steady line of refinements, their computational ...

    • Photon Beam Diffusion: A Hybrid Monte Carlo Method for Subsurface Scattering 

      Habel, Ralf; Christensen, Per H.; Jarosz, Wojciech (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We present photon beam diffusion, an efficient numerical method for accurately rendering translucent materials. Our approach interprets incident light as a continuous beam of photons inside the material. Numerically ...

    • Probabilistic Visibility Evaluation for Direct Illumination 

      Billen, Niels; Engelen, Björn; Lagae, Ares; Dutré, Philip (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      The efficient evaluation of visibility in a three-dimensional scene is a longstanding problem in computer graphics. Visibility evaluations come in many different forms: figuring out what object is visible in a pixel; ...

    • Temporally Coherent Adaptive Sampling for Imperfect Shadow Maps 

      Barák, Tomas; Bittner, Jiri; Havran, Vlastimil (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We propose a new adaptive algorithm for determining virtual point lights (VPL) in the scope of real-time instant radiosity methods, which use a limited number of VPLs. The proposed method is based on Metropolis-Hastings ...