I got it. I was confused by "clean scene". We call it "textless" or
"textless backgrounds". I see how this can be a problem. I guess you
have to watch for the odd/even IN points to avoid the problem. But aside
from this nuisance there are benefits of 59.94 fps. What if you wanted
to make 60 distinct cuts per second. An edit system that edits on odd or
even frames only would not allow you to do that.
Igor Ridanovic
Kappa Studios, Inc.
3619 W. Magnolia Blvd.
Burbank, CA 91505
(818) 8430-3400
http://www.kappastudios.com
-----Original Message-----
From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM] On Behalf
Of Jef Huey
Sent: Thursday, January 19, 2006 11:01 AM
To: DS(at)Softimage.COM
Subject: Re: Why 60 fps?
Say that in the show a scene with titles start on frame 1 of the 60
timeline. The editor parks the clean scene version on a 0 frame at the
end of the reel.
The cross convert from 60 p to 30 i occurs. Now a different editor
tries to use the clean scene.
That clean scene does not start on field 1 like the shot he/she is
trying to replace. It starts on field 2. The fields were also inverted
during the cross conversion.
Does that make sense?
Jef
Igor Ridanovic wrote:
> I am confused. Why would the field dominance be reversed? And are you
> talking about field dominance as in whether cuts start on field one or
> field 2, or you are talking about field interweaving where fields have
> swapped places while being processed by a digital device such as
> downconverter? What is the scene's "titled version" you mention?
>
>
> Igor Ridanovic
> Kappa Studios, Inc.
>
> 3619 W. Magnolia Blvd.
> Burbank, CA 91505
> (818) 8430-3400
>
> http://www.kappastudios.com
>
> -----Original Message-----
> From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM] On Behalf
> Of Jef Huey
> Sent: Thursday, January 19, 2006 8:31 AM
> To: DS(at)Softimage.COM
> Subject: Why 60 fps?
>
>
> Many editors working on 720p 60 do not consider the impact of their
> actions when editing in this world. Take clean scenes for example.
> Say there is a scene which starts on frame 1. The editor picks up the
> clean scene and puts it at the end of the reel. BUT, being the anal
> retentive type, they put it at a nice, neat 0 frame.
>
> Now, when the inevitable down convert to an interlaced format occurs,
> the clean scene's field dominance is reverse relative to it's titled
> version. And QC rightly flags the shot. This is but one example
>
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