Proceedings of the 27th annual conference on Computer graphics and interactive techniques最新文献_第6页

Adaptively sampled distance fields: a general representation of shape for computer graphics 自适应采样距离场:计算机图形学形状的一般表示

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344899

Sarah F. Frisken, R. N. Perry, A. Rockwood, T. Jones

引用次数: 680

Fast texture synthesis using tree-structured vector quantization 快速纹理合成的树状结构矢量量化

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.345009

Li-Yi Wei, M. Levoy

引用次数: 1653

√3-subdivision

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344835

L. Kobbelt

{"title":"√3-subdivision","authors":"L. Kobbelt","doi":"10.1145/344779.344835","DOIUrl":"https://doi.org/10.1145/344779.344835","url":null,"abstract":"A new stationary subdivision scheme is presented which performs slower topological refinement than the usual dyadic split operation. The number of triangles increases in every step by a factor of 3 instead of 4. Applying the subdivision operator twice causes a uniform refinement with tri-section of every original edge (hence the name √3-subdivision) while two dyadic splits would quad-sect every original edge. Besides the finer gradation of the hierarchy levels, the new scheme has several important properties: The stencils for the subdivision rules have minimum size and maximum symmetry. The smoothness of the limit surface is C2 everywhere except for the extraordinary points where it is C1. The convergence analysis of the scheme is presented based on a new general technique which also applies to the analysis of other subdivision schemes. The new splitting operation enables locally adaptive refinement under built-in preservation of the mesh consistency without temporary crack-fixing between neighboring faces from different refinement levels. The size of the surrounding mesh area which is affected by selective refinement is smaller than for the dyadic split operation. We further present a simple extension of the new subdivision scheme which makes it applicable to meshes with boundary and allows us to generate sharp feature lines.","PeriodicalId":269415,"journal":{"name":"Proceedings of the 27th annual conference on Computer graphics and interactive techniques","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114205623","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: 244

Spectral compression of mesh geometry 网格几何的频谱压缩

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344924

Zachi Karni, C. Gotsman

引用次数: 759

Surface light fields for 3D photography 用于3D摄影的表面光场

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344925

Daniel N. Wood, D. I. Azuma, Kenneth R. Aldinger, B. Curless, T. Duchamp, D. Salesin, W. Stuetzle

引用次数: 542

Computer modelling of fallen snow 落雪的电脑模拟

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344809

P. Fearing

引用次数: 90

A fast relighting engine for interactive cinematic lighting design 用于交互式电影灯光设计的快速照明引擎

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344938

Reid Gershbein, P. Hanrahan

{"title":"A fast relighting engine for interactive cinematic lighting design","authors":"Reid Gershbein, P. Hanrahan","doi":"10.1145/344779.344938","DOIUrl":"https://doi.org/10.1145/344779.344938","url":null,"abstract":"We present new techniques for interactive cinematic lighting design of complex scenes that use procedural shaders. Deep-framebuffers are used to store the geometric and optical information of the visible surfaces of an image. The geometric information is represented as collections of oriented points, and the optical information is represented as bi-directional reflection distribution functions, or BRDFs. The BRDFs are generated by procedurally defined surface texturing functions that spatially vary the surfaces' appearances. The deep-framebuffer information is rendered using a multi-pass algorithm built on the OpenGL graphics pipeline. In order to handle both physically-correct as well as non-realistic reflection models used in the film industry, we factor the BRDF into independent components that map onto both the lighting and texturing units of the graphics hardware. A similar factorization is used to control the lighting distribution. Using these techniques, lighting calculations can be evaluated 2500 times faster than previous methods. This allows lighting changes to be rendered at rates of 20Hz in static environments that contain millions of objects of with dozens of unique procedurally defined surface properties and scores of lights.","PeriodicalId":269415,"journal":{"name":"Proceedings of the 27th annual conference on Computer graphics and interactive techniques","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126365930","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: 42

Shadows for cel animation 用于细胞动画的阴影

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.345073

L. Petrovic, Brian Fujito, Lance Williams, Adam Finkelstein

引用次数: 81