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IEEE Computer Graphics and Applications

Issue 10 • Oct. 1984

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Displaying Results 1 - 21 of 21
  • [Front cover]

    Publication Year: 1984, Page(s): c1
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  • [Front inside cover - advertisement]

    Publication Year: 1984, Page(s): c2
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  • Contents

    Publication Year: 1984, Page(s): 1
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  • Advertisements

    Publication Year: 1984, Page(s): 2
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  • Call for papers

    Publication Year: 1984, Page(s): 3
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  • About the cover

    Publication Year: 1984, Page(s): 4
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  • Generating soft shadows with a depth buffer algorithm

    Publication Year: 1984, Page(s):5 - 14
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (50055 KB)

    A pragmatic approach is taken to develop an algorithm that combines an existing shadowing method with a popular visible surface rendering technique, called a depth buffer, to generate soft shadows resulting from light sources of finite extent. The method extends F. Crow's shadow volume algorithm (1977) to produce multiple shadows overlapped to yield the characteristic soft edges of a shadow penumb... View full abstract»

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  • Space subdivision for fast ray tracing

    Publication Year: 1984, Page(s):15 - 24
    Cited by:  Papers (69)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (21707 KB)

    An algorithm is described that speeds up ray-tracing techniques by reducing the number of time-consuming object-ray intersection calculations that have to be made. The algorithm is based on subdividing space into an octree, associating a given voxel with only those objects whose surfaces pass through the volume of the voxel. It includes a technique for obtaining fast access to any node and a mecha... View full abstract»

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  • Computer-aided design applications on microcomputers

    Publication Year: 1984, Page(s):25 - 28
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (10744 KB)

    A microcomputer-based, two-dimensional CAD system has been developed and implemented for a specific manufacturing environment, namely, the small manufacturer. This work began with a system for the design of multiple-spindle drill heads. A subset of Lockheed's CADAM system was emulated on a microcomputer to demonstrate the feasibility of this approach. Facilities were provided for drawing and erasi... View full abstract»

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  • Direct 2-D display of 3-D objects

    Publication Year: 1984, Page(s):29 - 34
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (12006 KB)

    An approach to the problem of deriving a 2-D display of a 3-D object is described that is quite different from previous methods in that boundary detection and hidden-surface removal are not carried out explicitly. The method uses a scan-line representation of three-dimensional objects. View full abstract»

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  • A symbolic method for calculating the integral properties of arbitrary nonconvex polyhedra

    Publication Year: 1984, Page(s):35 - 42
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (11327 KB)

    A simple and systematic method is described for calculating the integral of a polynomial function over an arbitrary nonconvex polyhedron. First a general formula is presented for direct evaluation of the integral of a polynomial over a 3-D simplex. An integral over a polyhedron can then be easily calculated by using the central projection method and decomposing a polyhedron symmetrically into a se... View full abstract»

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  • A generalized object display processor architecture

    Publication Year: 1984, Page(s):43 - 55
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (49375 KB)

    The features and organization of a hardware architecture that is designed to facilitate the real-time display and manipulation of a single three-dimensional object on a raster-scan video display are briefly summarized. The author then outlines the major features of an extension to the architecture that will permit the high-speed display and manipulation of multiple, independent, shaded three-dimen... View full abstract»

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  • New systems improve picture quality and performance

    Publication Year: 1984, Page(s):56 - 59
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (11379 KB)

    The new interactive computer graphics systems exhibited at Siggraph 84 are discussed, with emphasis on improved capabilities, which were most notable in the products of new vendors. View full abstract»

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  • Selective update

    Publication Year: 1984, Page(s):60 - 63
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6731 KB)

    Michael J. Wozny, editor-in-chief of IEEE Computer Graphics and Applications, announces the appointment of two new members to CG&A's Editorial Board. Thomas A. DeFanti and James D. Foley undertook their responsibilities as board members on September 13, 1984. View full abstract»

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  • Application briefs

    Publication Year: 1984, Page(s):63 - 65
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5782 KB)

    Greenhouse Consultants, Inc., of New York and Atlanta, is using thermostatically controlled portable shelters and in-field advanced conservation techniques, along with field and lab computers, remote sensing equipment, computerized infrared transits, an overhead stereoscopic camera system, and three-dimensional computer graphics, to set a new standard for completing an archaeological project withi... View full abstract»

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  • New products

    Publication Year: 1984, Page(s):66 - 74
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  • Product highlights

    Publication Year: 1984, Page(s):75 - 77
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  • Professional calendar

    Publication Year: 1984, Page(s):78 - 79
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  • Advertiser index — October 1984

    Publication Year: 1984, Page(s):80 - 82
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  • [Back inside cover - advertisement]

    Publication Year: 1984, Page(s): c3
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  • [Back cover]

    Publication Year: 1984, Page(s): c4
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Aims & Scope

IEEE CG&A bridges the theory and practice of computer graphics. From specific algorithms to full system implementations, CG&A offers a unique combination of peer-reviewed feature articles and informal departments, including product announcements.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
L. Miguel Encarnação
The QED Group