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CreatorTitleDescriptionSubjectDate
1 Clark, James Henry3-D Design of free-form B-Spline surfaces (CSTD-74-005)This report describes an experimental system for designing free-form B-spline surfaces using a head-mounted display. In this system, the interaction with the surfaces takes place in three dimensions as the designed object's shape Is updated in real-time. The report also examines some of the problems...Computer animation1974-09
2 Catmull, EdwinA subdivision algorithm for computer display of curved surfaces (CSTD-74-006)This report presents a method for producing computer shaded pictures of curved surfaces. Three-dimensional curved patches are used, as contrasted with conventional methods using polygons. The method subdivides a patch into successively smaller subpatches until a subpatch is as small as a raster-elem...Computer animation1974-12
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