Seminal graphics: pioneering efforts that shaped the field最新文献_第2页

Feature-based image metamorphosis 基于特征的图像变态

Seminal graphics: pioneering efforts that shaped the field Pub Date : 1998-07-01 DOI: 10.1145/280811.281029

Thaddeus Beier, Shawn Neely

引用次数: 239

Global and local deformations of solid primitives 实体基元的全局和局部变形

Seminal graphics: pioneering efforts that shaped the field Pub Date : 1998-07-01 DOI: 10.1145/280811.280998

A. Barr

引用次数: 6

Computer display of curved surfaces 曲面的计算机显示

Seminal graphics: pioneering efforts that shaped the field Pub Date : 1998-07-01 DOI: 10.1145/280811.280920

E. Catmull

引用次数: 63

A progressive refinement approach to fast radiosity image generation 射线图像快速生成的渐进细化方法

Seminal graphics: pioneering efforts that shaped the field Pub Date : 1998-07-01 DOI: 10.1145/280811.280990

Michael F. Cohen, Shenchang Chen, J. R. Wallace, D. Greenberg

引用次数: 39

Hierarchical geometric models for visible surface algorithms 可见曲面算法的层次几何模型

Seminal graphics: pioneering efforts that shaped the field Pub Date : 1998-07-01 DOI: 10.1145/280811.280921

James H. Clark

{"title":"Hierarchical geometric models for visible surface algorithms","authors":"James H. Clark","doi":"10.1145/280811.280921","DOIUrl":"https://doi.org/10.1145/280811.280921","url":null,"abstract":"The research described in this paper addresses the problems associated with the design of systems for efficiently producing computer-generated pictures and picture sequences of very complex, three-dimensional environments. The thesis of the research is that the geometric structure inherent in the definition of the shapes of three-dimensional objects and environments must be used not just to define their relative motion and placement but also to assist in solving many other problems of systems for producing pictures by computer.The implications are that by using an extension of traditional structure information, or a geometric hierarchy, five significant improvements to current techniques are possible. First, the range of complexity of an environment is greatly increased while the visible complexity of any given scene is kept within a fixed upper limit. Second, a meaningful way is provided to vary the amount of detail presented in a scene both according to the screen area occupied by the objects in the scene and according to camera and object motions. Third, by using the geometric hierarchy, \"clipping\" becomes a very fast logarithmic search for the resolvable parts of the environment within the field-of-view. Fourth, by using this positional hierarchy in conjunction with a storage hierarchy of the sort used in virtual memory computing systems, frame-to-frame coherence and clipping define a graphical \"working set\", or fraction of the total structure that should be present in primary store for immediate access by the visible-surface algorithms. Finally, the proposed structural framework suggests a new recursive descent visible-surface algorithm in which the computation time grows almost linearly with a scene's visible complexity rather than as a worse than linear function of its object-space complexity.","PeriodicalId":236803,"journal":{"name":"Seminal graphics: pioneering efforts that shaped the field","volume":"196 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132516748","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: 59

Distributing a visible surface algorithm over multiple processors 在多个处理器上分配一个可见表面算法

Seminal graphics: pioneering efforts that shaped the field Pub Date : 1998-07-01 DOI: 10.1145/280811.281020

H. Fuchs

引用次数: 4

Pyramidal parametrics 金字塔形的参数化

Seminal graphics: pioneering efforts that shaped the field Pub Date : 1998-07-01 DOI: 10.1145/280811.280977

Lance Williams

{"title":"Pyramidal parametrics","authors":"Lance Williams","doi":"10.1145/280811.280977","DOIUrl":"https://doi.org/10.1145/280811.280977","url":null,"abstract":"The mapping of images onto surfaces may substantially increase the realism and information content of computer-generated imagery. The projection of a flat source image onto a curved surface may involve sampling difficulties, however, which are compounded as the view of the surface changes. As the projected scale of the surface increases, interpolation between the original samples of the source image is necessary; as the scale is reduced, approximation of multiple samples in the source is required. Thus a constantly changing sampling window of view-dependent shape must traverse the source image. To reduce the computation implied by these requirements, a set of prefiltered source images may be created. This approach can be applied to particular advantage in animation, where a large number of frames using the same source image must be generated. This paper advances a “pyramidal parametric” prefiltering and sampling geometry which minimizes aliasing effects and assures continuity within and between target images. Although the mapping of texture onto surfaces is an excellent example of the process and provided the original motivation for its development, pyramidal parametric data structures admit of wider application. The aliasing of not only surface texture, but also highlights and even the surface representations themselves, may be minimized by pyramidal parametric means.","PeriodicalId":236803,"journal":{"name":"Seminal graphics: pioneering efforts that shaped the field","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125273190","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: 46

The notion of quantitative invisibility and the machine rendering of solids 定量不可见的概念和实体的机器渲染

Seminal graphics: pioneering efforts that shaped the field Pub Date : 1998-07-01 DOI: 10.1145/280811.280916

Arthur Appel

引用次数: 1

Real-time display of computer generated half-tone perspective pictures 实时显示计算机生成的半色调透视图片

Seminal graphics: pioneering efforts that shaped the field Pub Date : 1998-07-01 DOI: 10.1145/280811.281011

G. Romney, Gary S. Watkins, D. C. Evans

引用次数: 14

Color image quantization for frame buffer display 用于帧缓冲显示的彩色图像量化

Seminal graphics: pioneering efforts that shaped the field Pub Date : 1998-07-01 DOI: 10.1145/280811.281025

Paul S. Heckbert

引用次数: 218