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000172_owner-lightwave-l _Thu Aug 4 15:20:40 1994.msg
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Received: by mail3.netcom.com (8.6.8.1/Netcom) id OAA25091; Thu, 4 Aug 1994 14:12:37 -0700
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Date: Thu, 4 Aug 1994 14:07:58 -0700
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To: lightwave-l@netcom.com
From: mccabejc@sce.com (Jim McCabe)
Subject: Re: Roto in Lightwave
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Neil Richmond writes:
>I received a note stating that rotoing using lightwaves image sequence is not
>very accurate, that the images do not match the final frames, maybe some kind
>of scaling of the image when it is loaded in. If this is so, then this is not
>good. Especially, if you might be working in different formats. Can anyone
>comment further on this? Also, having color for roto is not as critical as
>having at least a 4-8 bit black and white. The disadvantage to color is that it
>takes up a lot of memory and slows down any kind of preview. The need for
higher
>quality b&w, is that it makes for better roto, especially if the output is
>going to be film.
>We have the ability here to define a viewport to match the apect ratio of the
>image to be rotoed.
I'm not sure exactly what you're referring to, but I do know that if you are
talking about grabbing an image sequence using the Toaster for rotoscoping,
the images may not all be centered identically. If you then lay them back to
tape, the resulting video will likely jitter. According to Newtek the
Toaster was not designed to have consecutive images grabbed identically.