Eurographics Symposium on Rendering最新文献_第6页

An efficient multi-view rasterization architecture 一个高效的多视图栅格化架构

Eurographics Symposium on Rendering Pub Date : 2006-06-26 DOI: 10.2312/EGWR/EGSR06/061-072

J. Hasselgren, T. Akenine-Möller

引用次数: 36

Bidirectional instant radiosity 双向瞬间辐射

Eurographics Symposium on Rendering Pub Date : 2006-06-26 DOI: 10.2312/EGWR/EGSR06/389-397

B. Segovia, J. Iehl, R. Mitanchey, B. Péroche

引用次数: 72

A novel method for fast and high-quality rendering of hair 一种快速、高质量头发渲染的新方法

Eurographics Symposium on Rendering Pub Date : 2006-06-26 DOI: 10.2312/EGWR/EGSR06/331-341

Songhua Xu, F. Lau, Hao Jiang, Yunhe Pan

{"title":"A novel method for fast and high-quality rendering of hair","authors":"Songhua Xu, F. Lau, Hao Jiang, Yunhe Pan","doi":"10.2312/EGWR/EGSR06/331-341","DOIUrl":"https://doi.org/10.2312/EGWR/EGSR06/331-341","url":null,"abstract":"This paper proposes a new rendering approach for hair. The model we use incorporates semantics-related information directly in the appearance modeling function which we call a Semantics-Aware Texture Function (SATF). This new appearance modeling function is well suited for constructing an off-line/on-line hybrid algorithm to achieve fast and high-quality rendering of hair. The off-line phase generates intermediate results in a database for sample geometries under different viewing and lighting conditions, which can be used to complete a large part of the overall computation and leaves only a few dynamic tasks to be performed on-line. We propose a model having four levels, from the whole hair volume to the very fine hair density level. We further employ an efficient disk-like structure to represent hair distributions inside a hair cluster. As the intermediate database carries opacity information, self-shadows can be easily generated. We present experiment results which clearly show that our methodology can indeed produce high quality rendering results efficiently. Supplementary materials and supporting demos can be found in our project website http://www.cs.hku.hk/˜songhua/hair-rendering/.","PeriodicalId":363391,"journal":{"name":"Eurographics Symposium on Rendering","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122787911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

A low dimensional framework for exact polygon-to-polygon occlusion queries 用于精确多边形对多边形遮挡查询的低维框架

Eurographics Symposium on Rendering Pub Date : 2005-06-29 DOI: 10.2312/EGWR/EGSR05/211-222

D. Haumont, Otso Makinen, S. Nirenstein

引用次数: 34

Real-time multiple scattering in participating media with illumination networks 光照网络参与介质中的实时多重散射

Eurographics Symposium on Rendering Pub Date : 2005-06-29 DOI: 10.2312/EGWR/EGSR05/277-282

László Szirmay-Kalos, M. Sbert, Tamás Umenhoffer

引用次数: 31

Fast exact from-region visibility in urban scenes 在城市场景中快速精确的区域可见性

Eurographics Symposium on Rendering Pub Date : 2005-06-29 DOI: 10.2312/EGWR/EGSR05/223-230

Jiří Bittner, Peter Wonka, M. Wimmer

引用次数: 25

A hybrid monte carlo method for accurate and efficient subsurface scattering 一种混合蒙特卡罗方法用于精确和高效的地下散射

Eurographics Symposium on Rendering Pub Date : 2005-06-29 DOI: 10.2312/EGWR/EGSR05/283-290

Hongsong Li, F. Pellacini, K. Torrance

{"title":"A hybrid monte carlo method for accurate and efficient subsurface scattering","authors":"Hongsong Li, F. Pellacini, K. Torrance","doi":"10.2312/EGWR/EGSR05/283-290","DOIUrl":"https://doi.org/10.2312/EGWR/EGSR05/283-290","url":null,"abstract":"Subsurface scattering is a fundamental aspect of surface appearance responsible for the characteristic look of many materials. Monte Carlo path tracing techniques can be employed with high accuracy to simulate the scattering of light inside a translucent object, albeit at the cost of long computation times. In a seminal work, Jensen et al. [JMLH01] presented a more efficient technique to simulate subsurface scattering that, while producing accurate results for translucent, optically-thick, materials, exhibits artifacts for semi-transparent, optically-thin, ones, especially in regions of high-curvature.\u0000 This paper presents a hybrid Monte Carlo technique capable of simulating a wide range of materials exhibiting subsurface scattering, from translucent to semi-transparent ones, with an accuracy comparable to Monte Carlo techniques but at a much lower computational cost. Our approach utilizes a Monte Carlo path tracing approach for the first several scattering events, in order to estimate the directional-diffuse component of subsurface scattering, and switches to a dipole diffusion approximation only when the path penetrates deeply enough into the surface. By combining the accuracy of Monte Carlo integration with the efficiency of the dipole diffusion approximation, our hybrid method produces results as accurate as full Monte Carlo simulations at a speed comparable to the Jensen et al. approximation, thus extending its usefulness to a much wider range of materials.","PeriodicalId":363391,"journal":{"name":"Eurographics Symposium on Rendering","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130415444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 33

Table-top computed lighting for practical digital photography 桌面计算照明实用数码摄影

Eurographics Symposium on Rendering Pub Date : 2005-06-29 DOI: 10.2312/EGWR/EGSR05/165-172

Ankit Mohan, J. Tumblin, Bobby Bodenheimer, C. Grimm, Reynold J. Bailey

引用次数: 19

Experimental analysis of BRDF models BRDF模型的实验分析

Eurographics Symposium on Rendering Pub Date : 2005-06-29 DOI: 10.2312/EGWR/EGSR05/117-126

A. Ngan, F. Durand, W. Matusik

{"title":"Experimental analysis of BRDF models","authors":"A. Ngan, F. Durand, W. Matusik","doi":"10.2312/EGWR/EGSR05/117-126","DOIUrl":"https://doi.org/10.2312/EGWR/EGSR05/117-126","url":null,"abstract":"The Bidirectional Reflectance Distribution Function (BRDF) describes the appearance of a material by its interaction with light at a surface point. A variety of analytical models have been proposed to represent BRDFs. However, analysis of these models has been scarce due to the lack of high-resolution measured data. In this work we evaluate several well-known analytical models in terms of their ability to fit measured BRDFs. We use an existing high-resolution data set of a hundred isotropic materials and compute the best approximation for each analytical model. Furthermore, we have built a new setup for efficient acquisition of anisotropic BRDFs, which allows us to acquire anisotropic materials at high resolution. We have measured four samples of anisotropic materials (brushed aluminum, velvet, and two satins). Based on the numerical errors, function plots, and rendered images we provide insights into the performance of the various models. We conclude that for most isotropic materials physically-based analytic reflectance models can represent their appearance quite well. We illustrate the important difference between the two common ways of defining the specular lobe: around the mirror direction and with respect to the half-vector. Our evaluation shows that the latter gives a more accurate shape for the reflection lobe. Our analysis of anisotropic materials indicates current parametric reflectance models cannot represent their appearances faithfully in many cases. We show that using a sampled microfacet distribution computed from measurements improves the fit and qualitatively reproduces the measurements.","PeriodicalId":363391,"journal":{"name":"Eurographics Symposium on Rendering","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128030048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 509

Ray maps for global illumination 用于全局照明的光线贴图

Eurographics Symposium on Rendering Pub Date : 2005-06-29 DOI: 10.2312/EGWR/EGSR05/043-054

V. Havran, Jiří Bittner, R. Herzog, H. Seidel

引用次数: 16