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From: good@pixar.uucp (Pixar:  Where quality isn't just a word, it's a noun!)
Newsgroups: comp.graphics,rec.arts.tv
Subject: Re: How to view Superbowl 3-D
Keywords: TV 3-D graphic
Message-ID: <3089@pixar.UUCP>
Date: 28 Jan 89 23:41:01 GMT
References: <3230@datapg.MN.ORG> <3047@pixar.UUCP> <6934@killer.DALLAS.TX.US>
Sender: news@pixar.UUCP
Reply-To: good@pixar.uucp (Pixar:  Where quality isn't just a word, it's a noun!)
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Organization: Pixar -- Marin County, California
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In article <6934@killer.DALLAS.TX.US> bobc@killer.DALLAS.TX.US (Bob Calbridge) writes:
:In article <3047@pixar.UUCP>, good@pixar.uucp (Craig Good: Central Marin Home for the Bewildered) writes:
:[deleted some other stuff found laying around in here]
: 
:> I don't know how these guys sold it as a licensed product since you
:> can't very well patent a camera move,...
:
:I can't see a camera of any perceivable mass being moved fast enought to
:work within the speeds need to produce a new frame every sixtieth of a
:second.  Conceivably what they did was have two cameras and electronically
:switch between the two somehow.  This might be able to be licensed.

Ok, I finally heard the poop on their "new" film-to-tape system.  They
shoot at 60 frames per second (just like ShowScan) and transfer so that
each new video field is sampling a new film frame.  That's why the video
looked so darn good -- it's about as good an image-capture sytem for
video as exists today (since TV cameras are still trying to catch up
to film).

I'm not sure what was meant by "moving a camera fast enough to make a
new frame every sixtieth of a second", so I'll address the two most
obvious.  First, and this is the trickiest one, is the business of
moving the film in the camera quickly enough for that frame rate.  But
that is now a very mature technology (slow-motion camera speeds have only
been around several decades now), at least for 35mm stock.  Second, which
is actually moving the camera, is trivial.  It doesn't take much movement
to move things so that each frame looks different.

I remain as impressed with their salesmanship as their "technology".


		--Craig
		...{ucbvax,sun}!pixar!good