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- Newsgroups: comp.graphics
- Path: sparky!uunet!elroy.jpl.nasa.gov!usc!rpi!ncc1701
- From: ncc1701@madoka.its.rpi.edu (Mark O. Chadwick)
- Subject: Re: in-betweening for cartoons .
- Message-ID: <#j1xs_q@rpi.edu>
- Nntp-Posting-Host: madoka.its.rpi.edu
- Reply-To: ncc1701@acm.rpi.edu
- References: <25682@sophia.inria.fr>
- Date: Wed, 29 Jul 1992 19:00:21 GMT
- Lines: 28
-
- laborel@zig.inria.fr (Louis Laborelli) writes:
-
- >I would like to know more about computer aided cartoons,
- >ie the use of a program to interpolate between different frames.
- >Is the process completly automated now ?
- >Any references or addresses of companies doing that ?
- >How different it is from morphing ?
-
- It's rather difficult to get a program to do tweening. Most computer
- programs can only do linear interpolation between frames, which is
- NOT tweening--it is morphing. Morphed motion, while occasionally
- desirable, is usually not, for animation purposes.
-
- For instance, take an animation of someone walking. When you
- walk, your leg moves forward quickly, slows as you step on it,
- reverses direction, gaining speed until you bring it back again.
- If you do simple interpolation, it'll look wierd...very robotic.
-
- There is a program out now for IBM PC's that allows you control over
- the morphing, so you _can_ get tweening results (specifically,
- it allows you to control the rate of change between individual
- frames).
-
- Email me if you want more info.
-
- --
- ---
- Mark "Emerson" Chadwick -- ncc1701@acm.rpi.edu chadwickmo@space.laafb.af.mil
-