Browsing EGSR09: 20th Eurographics Symposium on Rendering by Issue Date
Now showing items 1-20 of 22
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The Use of Precomputed Triangle Clusters for Accelerated Ray Tracing in Dynamic Scenes
(The Eurographics Association and Blackwell Publishing Ltd, 2009)In this paper we present a hybrid algorithm for building the bounding volume hierarchy (BVH) that is used in accelerating ray tracing of animated models. This algorithm precomputes densely packed clusters of triangles on ... -
Dart Throwing on Surfaces
(The Eurographics Association and Blackwell Publishing Ltd, 2009)In this paper we present dart throwing algorithms to generate maximal Poisson disk point sets directly on 3D surfaces. We optimize dart throwing by efficiently excluding areas of the domain that are already covered by ... -
Frontmatter
(The Eurographics Association and Blackwell Publishing Ltd, 2009) -
Deterministic Importance Sampling with Error Diffusion
(The Eurographics Association and Blackwell Publishing Ltd, 2009)This paper proposes a deterministic importance sampling algorithm that is based on the recognition that delta-sigma modulation is equivalent to importance sampling. We propose a generalization for delta-sigma modulation ... -
Single Photo Estimation of Hair Appearance
(The Eurographics Association and Blackwell Publishing Ltd, 2009)Significant progress has been made in high-quality hair rendering, but it remains difficult to choose parameter values that reproduce a given real hair appearance. In particular, for applications such as games where naive ... -
Interactive Global Photon Mapping
(The Eurographics Association and Blackwell Publishing Ltd, 2009)We present a photon mapping technique capable of computing high quality global illumination at interactive frame rates. By extending the concept of photon differentials to efficiently handle diffuse reflections, we generate ... -
Packet-based Hierarchal Soft Shadow Mapping
(The Eurographics Association and Blackwell Publishing Ltd, 2009)Recent soft shadow mapping techniques based on back-projection can render high quality soft shadows in real time. However, real time high quality rendering of large penumbrae is still challenging, especially when multilayer ... -
Estimating Specular Roughness and Anisotropy from Second Order Spherical Gradient Illumination
(The Eurographics Association and Blackwell Publishing Ltd, 2009)This paper presents a novel method for estimating specular roughness and tangent vectors, per surface point, from polarized second order spherical gradient illumination patterns. We demonstrate that for isotropic BRDFs, ... -
Texture Design and Draping in 2D Images
(The Eurographics Association and Blackwell Publishing Ltd, 2009)We present a complete system for designing and manipulating regular or near-regular textures in 2D images. We place emphasis on supporting creative workflows that produce artwork from scratch. As such, our system provides ... -
Anomalous Dispersion in Predictive Rendering
(The Eurographics Association and Blackwell Publishing Ltd, 2009)In coloured media, the index of refraction does not decrease monotonically with increasing wavelength, but behaves in a quite non-monotonical way. This behaviour is called anomalous dispersion and results from the fact ... -
Efficient and Accurate Rendering of Complex Light Sources
(The Eurographics Association and Blackwell Publishing Ltd, 2009)We present a new method for estimating the radiance function of complex area light sources. The method is based on Jensen s photon mapping algorithm. In order to capture high angular frequencies in the radiance function, ... -
A Robust Illumination Estimate for Chromatic Adaptation in Rendered Images
(The Eurographics Association and Blackwell Publishing Ltd, 2009)We propose a method that improves automatic colour correction operations for rendered images. In particular, we propose a robust technique for estimating the visible and pertinent illumination in a given scene. We do this ... -
Locally Adapted Projections to Reduce Panorama Distortions
(The Eurographics Association and Blackwell Publishing Ltd, 2009)Displaying panoramic and wide angle views on a flat 2D display surface is necessarily prone to distortions. Perspective projections are limited to fairly narrow view angles. Cylindrical and spherical projections can show ... -
Fast Global Illumination on Dynamic Height Fields
(The Eurographics Association and Blackwell Publishing Ltd, 2009)We present a real-time method for rendering global illumination effects from large area and environmental lights on dynamic height fields. In contrast to previous work, our method handles inter-reflections (indirect lighting) ... -
Soft Textured Shadow Volume
(The Eurographics Association and Blackwell Publishing Ltd, 2009)Efficiently computing robust soft shadows is a challenging and time consuming task. On the one hand, the quality of image-based shadows is inherently limited by the discrete property of their framework. On the other hand, ... -
Spatial Directional Radiance Caching
(The Eurographics Association and Blackwell Publishing Ltd, 2009)We present a new approach for accelerated global illumination computation in scenes with glossy surfaces. Our algorithm combines sparse illumination computation used in the radiance caching algorithm with BRDF importance ... -
FastV: From-point Visibility Culling on Complex Models
(The Eurographics Association and Blackwell Publishing Ltd, 2009)We present an efficient technique to compute the potentially visible set (PVS) of triangles in a complex 3D scene from a viewpoint. The algorithm computes a conservative PVS at object space accuracy. Our approach traces a ... -
Characteristic Point Maps
(The Eurographics Association and Blackwell Publishing Ltd, 2009)Extremely dense spatial sampling is often needed to prevent aliasing when rendering objects with high frequency variations in geometry and reflectance. To accelerate the rendering process, we introduce characteristic point ... -
BTF Compression via Sparse Tensor Decomposition
(The Eurographics Association and Blackwell Publishing Ltd, 2009)In this paper, we present a novel compression technique for Bidirectional Texture Functions based on a sparse tensor decomposition. We apply the K-SVD algorithm along two different modes of a tensor to decompose it into a ... -
Motion based Painterly Rendering
(The Eurographics Association and Blackwell Publishing Ltd, 2009)Previous painterly rendering techniques normally use image gradients for deciding stroke orientations. Image gradients are good for expressing object shapes, but difficult to express the flow or movements of objects. In ...