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

Pomegranate: a fully scalable graphics architecture 石榴:一个完全可伸缩的图形架构

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344981

Matthew Eldridge, Homan Igehy, P. Hanrahan

{"title":"Pomegranate: a fully scalable graphics architecture","authors":"Matthew Eldridge, Homan Igehy, P. Hanrahan","doi":"10.1145/344779.344981","DOIUrl":"https://doi.org/10.1145/344779.344981","url":null,"abstract":"Pomegranate is a parallel hardware architecture for polygon rendering that provides scalable input bandwidth, triangle rate, pixel rate, texture memory and display bandwidth while maintaining an immediate-mode interface. The basic unit of scalability is a single graphics pipeline, and up to 64 such units may be combined. Pomegranate's scalability is achieved with a novel “sort-everywhere” architecture that distributes work in a balanced fashion at every stage of the pipeline, keeping the amount of work performed by each pipeline uniform as the system scales. Because of the balanced distribution, a scalable network based on high-speed point-to-point links can be used for communicating between the pipelines. Pomegranate uses the network to load balance triangle and fragment work independently, to provide a shared texture memory and to provide a scalable display system. The architecture provides one interface per pipeline for issuing ordered, immediate-mode rendering commands and supports a parallel API that allows multiprocessor applications to exactly order drawing commands from each interface. A detailed hardware simulation demonstrates performance on next-generation workloads. Pomegranate operates at 87-99% parallel efficiency with 64 pipelines, for a simulated performance of up to 1.10 billion triangles per second and 21.8 billion pixels per second.","PeriodicalId":269415,"journal":{"name":"Proceedings of the 27th annual conference on Computer graphics and interactive techniques","volume":"100 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":"124397057","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: 63

Video textures 视频纹理

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.345012

Arno Schödl, R. Szeliski, D. Salesin, Irfan Essa

引用次数: 659

An autostereoscopic display 自动立体显示器

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344933

K. Perlin, Salvatore Paxia, J. Kollin

引用次数: 213

Time-dependent visual adaptation for fast realistic image display 快速逼真图像显示的时变视觉自适应

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344810

S. Pattanaik, J. Tumblin, Yangli Hector Yee, D. Greenberg

{"title":"Time-dependent visual adaptation for fast realistic image display","authors":"S. Pattanaik, J. Tumblin, Yangli Hector Yee, D. Greenberg","doi":"10.1145/344779.344810","DOIUrl":"https://doi.org/10.1145/344779.344810","url":null,"abstract":"Human vision takes time to adapt to large changes in scene intensity, and these transient adjustments have a profound effect on visual appearance. This paper offers a new operator to include these appearance changes in animations or interactive real-time simulations, and to match a user's visual responses to those the user would experience in a real-world scene. Large, abrupt changes in scene intensities can cause dramatic compression of visual responses, followed by a gradual recovery of normal vision. Asymmetric mechanisms govern these time-dependent adjustments, and offer adaptation to increased light that is much more rapid than adjustment to darkness. We derive a new tone reproduction operator that simulates these mechanisms. The operator accepts a stream of scene intensity frames and creates a stream of color display images. All operator components are derived from published quantitative measurements from physiology, psychophysics, color science, and photography. ept intentionally simple to allow fast computation, the operator is meant for use with real-time walk-through renderings, high dynamic range video cameras, and other interactive applications. We demonstrate its performance on both synthetically generated and acquired “real-world” scenes with large dynamic variations of illumination and contrast.","PeriodicalId":269415,"journal":{"name":"Proceedings of the 27th annual conference on Computer graphics and interactive techniques","volume":"13 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":"127108129","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: 360

Conservative volumetric visibility with occluder fusion 闭塞融合保守的体积可视性

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344886

G. Schaufler, Julie Dorsey, Xavier Décoret, F. Sillion

{"title":"Conservative volumetric visibility with occluder fusion","authors":"G. Schaufler, Julie Dorsey, Xavier Décoret, F. Sillion","doi":"10.1145/344779.344886","DOIUrl":"https://doi.org/10.1145/344779.344886","url":null,"abstract":"Visibility determination is a key requirement in a wide range of graphics algorithms. This paper introduces a new approach to the computation of volume visibility, the detection of occluded portions of space as seen from a given region. The method is conservative and classifies regions as occluded only when they are guaranteed to be invisible. It operates on a discrete representation of space and uses the opaque interior of objects as occluders. This choice of occluders facilitates their extension into adjacent opaque regions of space, in essence maximizing their size and impact. Our method efficiently detects and represents the regions of space hidden by such occluders. It is the first one to use the property that occluders can also be extended into empty space provided this space is itself occluded from the viewing volume. This proves extremely effective for computing the occlusion by a set of occluders, effectively realizing occluder fusion. An auxiliary data structure represents occlusion in the scene and can then be queried to answer volume visibility questions. We demonstrate the applicability to visibility preprocessing for real-time walkthroughs and to shadow-ray acceleration for extended light sources in ray tracing, with significant acceleration in both cases.","PeriodicalId":269415,"journal":{"name":"Proceedings of the 27th annual conference on Computer graphics and interactive techniques","volume":"20 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":"125632828","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: 185

Monte Carlo evaluation of non-linear scattering equations for subsurface reflection 地下反射非线性散射方程的蒙特卡罗计算

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344824

M. Pharr, P. Hanrahan

引用次数: 119

Sampling plausible solutions to multi-body constraint problems 多体约束问题的似是而非抽样解

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344882

Stephen Chenney, D. Forsyth

引用次数: 118

Toward a psychophysically-based light reflection model for image synthesis 基于心理物理的光反射图像合成模型

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344812

F. Pellacini, J. Ferwerda, D. Greenberg

{"title":"Toward a psychophysically-based light reflection model for image synthesis","authors":"F. Pellacini, J. Ferwerda, D. Greenberg","doi":"10.1145/344779.344812","DOIUrl":"https://doi.org/10.1145/344779.344812","url":null,"abstract":"In this paper we introduce a new light reflection model for image synthesis based on experimental studies of surface gloss perception. To develop the model, we've conducted two experiments that explore the relationships between the physical parameters used to describe the reflectance properties of glossy surfaces and the perceptual dimensions of glossy appearance. In the first experiment we use multidimensional scaling techniques to reveal the dimensionality of gloss perception for simulated painted surfaces. In the second experiment we use magnitude estimation methods to place metrics on these dimensions that relate changes in apparent gloss to variations in surface reflectance properties. We use the results of these experiments to rewrite the parameters of a physically-based light reflection model in perceptual terms. The result is a new psychophysically-based light reflection model where the dimensions of the model are perceptually meaningful, and variations along the dimensions are perceptually uniform. We demonstrate that the model can facilitate describing surface gloss in graphics rendering applications. This work represents a new methodology for developing light reflection models for image synthesis.","PeriodicalId":269415,"journal":{"name":"Proceedings of the 27th annual conference on Computer graphics and interactive techniques","volume":"1 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":"125821043","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: 273

Illuminating micro geometry based on precomputed visibility 基于预先计算的可见度照亮微观几何

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344984

W. Heidrich, K. Daubert, J. Kautz, H. Seidel

{"title":"Illuminating micro geometry based on precomputed visibility","authors":"W. Heidrich, K. Daubert, J. Kautz, H. Seidel","doi":"10.1145/344779.344984","DOIUrl":"https://doi.org/10.1145/344779.344984","url":null,"abstract":"Many researchers have been arguing that geometry, bump maps, and BRDFs present a hierarchy of detail that should be exploited for efficient rendering purposes. In practice however, this is often not possible due to inconsistencies in the illumination for these different levels of detail. For example, while bump map rendering often only considers direct illumination and no shadows, geometry-based rendering and BRDFs will mostly also respect shadowing effects, and in many cases even indirect illumination caused by scattered light. In this paper, we present an approach for overcoming these inconsistencies. We introduce an inexpensive method for consistently illuminating height fields and bump maps, as well as simulating BRDFs based on precomputed visibility information. With this information we can achieve a consistent illumination across the levels of detail. The method we propose offers significant performance benefits over existing algorithms for computing the light scattering in height fields and for computing a sampled BRDF representation using a virtual gonioreflectometer. The performance can be further improved by utilizing graphics hardware, which then also allows for interactive display. Finally, our method also approximates the changes in illumination when the height field, bump map, or BRDF is applied to a surface with a different curvature.","PeriodicalId":269415,"journal":{"name":"Proceedings of the 27th annual conference on Computer graphics and interactive techniques","volume":"2 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":"129982808","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: 115

Relief texture mapping 浮雕纹理映射

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI: 10.1145/344779.344947

M. M. O. Neto, G. Bishop, David K. McAllister

引用次数: 344