Advances in Computer Graphics Hardware V最新文献

Building a Full Scale VLSI-Based Volume Visualization System 构建基于vlsi的全尺寸体可视化系统

Advances in Computer Graphics Hardware V Pub Date : 1900-01-01 DOI: 10.2312/EGGH/EGGH90/109-115

R. Bakalash, A. Kaufman, Zhong Xu

引用次数: 3

An Efficient Parallel Ray Tracing Scheme for Highly Parallel Architectures 一种用于高度并行体系结构的高效并行光线跟踪方案

Advances in Computer Graphics Hardware V Pub Date : 1900-01-01 DOI: 10.2312/EGGH/EGGH90/093-106

D. Badouel, T. Priol

引用次数: 37

The Triangle Shading Engine 三角形着色引擎

Advances in Computer Graphics Hardware V Pub Date : 1900-01-01 DOI: 10.2312/EGGH/EGGH90/003-013

H. Ackermann, C. Hornung

引用次数: 3

I.M.O.G.E.N.E.-A Solution to the Real Time Animation Problem i.m.o.g.e.n.e.——实时动画问题的解决方案

Advances in Computer Graphics Hardware V Pub Date : 1900-01-01 DOI: 10.2312/EGGH/EGGH90/139-151

C. Chaillou, M. Mériaux, S. Karpf

{"title":"I.M.O.G.E.N.E.-A Solution to the Real Time Animation Problem","authors":"C. Chaillou, M. Mériaux, S. Karpf","doi":"10.2312/EGGH/EGGH90/139-151","DOIUrl":"https://doi.org/10.2312/EGGH/EGGH90/139-151","url":null,"abstract":"Current graphics processors are very slow for displaying shaded 3D objects. A lot of work is being done in order to define faster display processors by using massive parallelism and VLSI components. Our proposal goes along this line with the supplementary aim of displaying images in real time, i.e., 25 or 30 times per second. We choose to design a graphics module without any working memory and thus without frame buffer. A massive parallelism over objects, and thus a pixel pipe-line, are used. Each Object Processor handles one 3D object; all the processors work in a synchronous way, processing the same pixel simultaneously at pixel rate. These processors are built from very simple Elementary Processors (2 adders, 2 registers and 6 memory words) computing linear or quadratic expressions V(x,y), where (x,y) are the coordinates of a pixel. A pipelined tree made of basic operators (min, max, or, and, ... ) gathers the results given by the Object Processors and makes inter-objects operations, at least hidden part elimination. Such a choice of course involves a high hardware complexity when displaying rather simple scenes. However, we feel that it is the price to pay for building graphics processors allowing real-time interactive animation (e.g., the graphics unit of a driving simulator).","PeriodicalId":321323,"journal":{"name":"Advances in Computer Graphics Hardware V","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122625984","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: 3

A New Space Partitioning for Mapping Computations of the Radiosity Method onto a Highly Pipelined Parallel Architecture 一种新的空间划分方法，用于将辐射法的计算映射到高度流水线的并行体系结构上

Advances in Computer Graphics Hardware V Pub Date : 1900-01-01 DOI: 10.2312/EGGH/EGGH90/153-170

L. Shen, E. Deprettere, P. Dewilde

{"title":"A New Space Partitioning for Mapping Computations of the Radiosity Method onto a Highly Pipelined Parallel Architecture","authors":"L. Shen, E. Deprettere, P. Dewilde","doi":"10.2312/EGGH/EGGH90/153-170","DOIUrl":"https://doi.org/10.2312/EGGH/EGGH90/153-170","url":null,"abstract":"Despite the fact that realistic images can be generated by ray-tracing and radiosity shading, these techniques are impractical for scenes of high complexity because of the extremely high time cost. Several attempts have been made to reduce image synthesis time by using parallel architectures, but they still suffer from communication problems. In this paper, we present a new space partitioning which is adaptive to the local environment seen by a bundle of rays. Two tracking mechanisms are embedded to guarantee adaptation. When using a shared memory parallel architecture, the communication load between the host and the PEs can be alleviated with this approach. Furthermore, the partitioning provides a better balancing between processing throughput and I/O bandwidth which will enhance the pipelinability of computations, especially when a high speed cache memory is allowed for each PE. Combining those factors, a highly pipelined parallel architecture can be used to accelerate computations in ray-tracing and radiosity methods. The technique has been tested on different scenes with randomly generated patches in a 2D setting. When compared with the conventional technique, promising results have been observed. This technique can be easily extended to 3D.","PeriodicalId":321323,"journal":{"name":"Advances in Computer Graphics Hardware V","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124077573","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: 5

Real Time Phong Shading 实时Phong着色

Advances in Computer Graphics Hardware V Pub Date : 1900-01-01 DOI: 10.2312/EGGH/EGGH90/029-037

U. Claussen

引用次数: 5

A Multipurpose Hardware Shader 一个多用途硬件着色器

Advances in Computer Graphics Hardware V Pub Date : 1900-01-01 DOI: 10.2312/EGGH/EGGH90/039-051

J. Pöpsel, Eckard Tikwinski

引用次数: 0

MARTI-A Multiprocessor Architecture for Ray Tracing Images 用于光线追踪图像的多处理器体系结构

Advances in Computer Graphics Hardware V Pub Date : 1900-01-01 DOI: 10.2312/EGGH/EGGH90/069-083

M. Hebert, M. McNeill, B. Shah, R. L. Grimsdale, P. Lister

引用次数: 9

The AIDA Display Processor System Architecture AIDA显示处理器系统架构

Advances in Computer Graphics Hardware V Pub Date : 1900-01-01 DOI: 10.2312/EGGH/EGGH90/015-028

S. R. Evans, R. L. Grimsdale, P. Lister, Andrew D. Nimmo

引用次数: 2

Correct Shading of Regularized CSG Solids Using a Depth-Interval Buffer 使用深度间隔缓冲正确的正规化CSG固体的阴影

Advances in Computer Graphics Hardware V Pub Date : 1900-01-01 DOI: 10.2312/EGGH/EGGH90/117-138

J. Rossignac, Jeffrey Wu

{"title":"Correct Shading of Regularized CSG Solids Using a Depth-Interval Buffer","authors":"J. Rossignac, Jeffrey Wu","doi":"10.2312/EGGH/EGGH90/117-138","DOIUrl":"https://doi.org/10.2312/EGGH/EGGH90/117-138","url":null,"abstract":"A convenient interactive design environment requires efficient facilities for shading solid models represented in CSG. Shading techniques based on boundary evaluation or ray casting that require calculations of geometric intersections are too inefficient for interactive graphics when CSG primitives with curved (parametric) surfaces are involved. Projective approaches, where the primitive surfaces are scan-converted using standard hardware-supported graphic functions are preferred. Since not all the points of the faces of a CSG primitive lie on the CSG solid, scan conversion must be combined with a procedure that tests the produced 3D surface-points against the original CSG expression. Point classifications against primitives defined by arbitrary curved boundaries may be performed, without geometric intersections, through depth-comparisons at each pixel. This approach has been implemented for the Pixel-Power machine by researchers at UNC. It deals with complex CSG trees by converting CSG expressions into sum-of-product form and repeatedly scan-converting the primitives of each product. The Trickle algorithm, which considerably reduces the number of scan-conversions in the general case has been developed at IBM Research and presented elsewhere. This paper discusses several recent improvements to the original Trickle algorithm. The overall algorithm has been simplified. The scan-conversion process and the point classification tests have been modified to correctly handle cases where several primitive faces coincide within an arbitrary numerical resolution. These enhancements are not only necessary for on/on cases in regularized Boolean expressions, but also for processing pairs of faces near their common edges. Finally, we point out that a simple two-pass extension of the trickle algorithm using an auxiliary shadow buffer suffices to compute directly from CSG shaded images with shadows.","PeriodicalId":321323,"journal":{"name":"Advances in Computer Graphics Hardware V","volume":"04 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127426169","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: 26