Steve Baker (steve++at++mred.bgm.link.com)
Thu, 16 Jan 97 16:19:54 -0500
> A common cheat in animation is to do double framing, that
> is, to only render every other frame and to record each rendered frame
> twice. We all expect that single framing is preferable to double framing,
> its only disadvantage is that single framing takes longer to render.
> There is another effect of double framing however. A motion that is
> double framed seems to move faster than one that is single framed,
> even if they take an identical amount of wall-clock time to take place.
> Double framing is therefore sometimes used by conventional animators
> to add liveliness to scene.
This seems very suprising - if it's true then it would appear to have
rather severe implications for simulations running at 30Hz. If time
somehow seems distorted in this way then vehicle operators (pilots
especially) might get false speed cues with 30Hz simulations!
Has anyone else out there heard this? Are there studies to show any
kind of effect like that?
Mr Blinn is presumably too busy to answer his email - I didn't get a
reply when I asked him for backup info.
Steve Baker 817-619-1361 (Vox-Lab)
Hughes Training Inc. 817-619-8776 (Vox-Office/Vox-Mail)
2200 Arlington Downs Road 817-619-4028 (Fax)
Arlington, Texas. TX 76005-6171 Steve++at++MrEd.bgm.link.com (eMail)
http://www.hti.com (external) http://MrEd.bgm.link.com/staff/steve (intranet)
http://web2.airmail.net/sjbaker1 (external)
"You can't destroy the Earth - that's where I keep all my stuff!" - The Tick.
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This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:54:21 PDT