Shaded rendering and shadow computation for polyhedral animation

W. Brent Seales, Charles R. Dyer

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


In this paper we discuss an approach for solving the problem of rendering a shaded sequence of views of a polyhedral scene with shadows and with hidden surfaces removed. We concentrate specifically on the hidden surface problem, the computational of shadow regions, and video-rate display. The method relies on a precomputation phase which constructs the aspect representation, a representation which encodes visibility information for each face in the model. The method exploits the frame-to-frame coherence present in such a sequence by deriving from the aspect representation only the changes in appearance with respect to viewpoint. The primary off-line cost of the shaded display is the cost associated with constructing the aspect representation. The primary online cost is the scan-conversion of the visible surfaces and shadow polygons.

Original languageEnglish
Pages (from-to)175-182
Number of pages8
JournalProceedings - Graphics Interface
StatePublished - May 1990
EventProceedings - Graphics Interface '90 - Halifax, NS, USA
Duration: May 14 1990May 18 1990

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design


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