Newsgroups: ont.events
Path: utzoo!utgpu!jarvis.csri.toronto.edu!explorer.dgp!elf
From: elf@dgp.toronto.edu (Eugene Fiume)
Subject: FLASH ANNOUNCEMENT: Two Informal Graphics Seminars
Message-ID: <1989Jun13.121534.16102@jarvis.csri.toronto.edu>
Organization: University of Toronto, CSRI
Distribution: ont

Sorry for the (unavoidable) short notice, but we have two very interesting
informal talks planned to which the general public is welcome.  Please see
my footnote below.

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Talk date: 	16 June 1989
Talk time: 	11:00
Talk location:	SF3207 (DCS Conference Room, SF=Sandford Fleming Building)

			Highlighting Rounded Edges
			Takfumi Saito
			NTT Human Interface Laboratories
			Japan

Abstract:
We propose an efficient method for rendering highlights on rounded edges,
which are important but were previously ignored in photorealistic image
synthesis.  In this method, the rounded edges are shaded as parts of thin
cylinders separately from ordinary surfaces.  To maintain coherence with
conventional shading models, an edge shading equation is proposed, which
derives an appropriate edge shading model from any conventional model.
The final image is obtained by drawing edges like wire-frames onto the
ordinary surface image.  Using the method, aliasing-free edge highlights
can be generated from simple edge data.  Several experiments how that both
the realism and comprehensibility of three-dimensional object images are
greatly enhanced by the proposed method with a little increase of
computation cost.

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Talk date: 	16 June 1989
Talk time: 	14:00
Talk location:	SF3207

			Drawing Human Hair using a Wisp Model
			Yasuhiko Watanabe
			NTT Human Interface Laboratories
			Japan

Drawing human hair is an important part of making realistic human images
by computer graphics technologies.  We present a new powerful method for
hair drawing based on a simplified model of human hair.  First, previously
reported methods for furry image generation are reviewed to clarify the
problems for hair image generation.  Second, a simplified model of human
hair is presented to describe and render various kinds of hair images with
a small number of parameters.  Practical methods for handling hair styles
and for generating realistic images are presented.

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The times given above are fairly firm, but there may be slight variation.
Thus if you are a potential out-of-town attendee, please phone me at
(416) 978-5472 late Thursday or early Friday to confirm the times.
Eugene Fiume
Dynamic Graphics Project
University of Toronto
elf@dgp.toronto.edu