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 shadow is a dark image cast on a surface by an object that blocks light. Part of a shadow's characteristic “softness” can be attributed to finite area, or “distributed” light sources, although there are other causes, such as light scattering or wave interference, which are not considered here. Objects that intercept light from distributed sources cast shadows consisti... 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)

    The most powerful general image synthesis method used today is referred to generically as ray tracing. Ray tracing was first described by Appel1 and later by Bouknight and Kelley2 and Kay.3 The algorithm used by most ray-tracing programs is described by Whitted.4 This paradigm is attractive because of its very elegant implementation and the wide range of... 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)

    Although computer-aided design systems for mechanical design are becoming commonplace on minis and mainframes, initial cost of a system typically ranges from $30,000 to more than $100,000 per workstation, including terminal, processor, and software. After initial training of users, substantially increased productivity offsets this large investment and recurring costs; nevertheless, only large comp... 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)

    In various fields, such as medical imaging1–3 and geological surveying,4 there exists a growing demand to present data on a 2-D monitor screen so that a 3-D projection of the object under study can be visualized easily. A popular approach is to display the surface boundary of the object in a number of different views relative to the position of the screen and the objec... 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 desire to generate realistic presentations of three-dimensional objects has stimulated a great deal of interest in special-purpose hardware and software systems. Applications for such technology include industrial simulation, three-dimensional modeling, and medical imaging for clinical diagnosis. The work of our General Robotics and Active Sensory Processing Group primarily addresses the last ... 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)

    Progress in picture quality and computing performance continued to mark the new interactive computer graphics systems exhibited at Siggraph 84 this summer in Minneapolis. In addition, about half of the systems provided for distributing functions by means of a local area network, and about the same fraction embodied some ergonomic features. 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.

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Meet Our Editors

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