Not sure how this will work with Progressive, but this is what I've done for Interlaced in the past and it seems to work well. I found the best conversion for 29.97 to 23.98 is done on a Flame. The idea is to find the common frame rate between 24 and 30. Hint, it's 120. So you first have to get the 30fps to 120fps. With 29.98i material, in the Flame I would first convert each field to it's own frame. So that basically takes 30i to 60p. Then I do a time warp to 120p with interpolated frames. Then I take that frame sequence and use 1/5 of the frames, I usually just delete all the frame that don't end in 0 or 5. Renumber the frames sequentially and then have my retimed shot.
I haven't tried it with my source already being Progressive. The first thing I would do would try and convert it from 30 to 120 with interpolated frames. If it looks too junky I would do a 2 step process. 30 to 60, then 60 to 120. You can probably do the same thing in Nuke, but I don't use Nuke much at all.
Jay
On Mar 13, 2012, at 5:04 PM, John Moore wrote:
> We have a CG show that all the animation was done 29.97P. They want to convert to 24 for international distribution. They've tried a Terenex in "auto" mode and "film" mode. The film mode is crisper but stutters. The auto mode is more fluid but on many shots there is something akin to what fluidmotion does sometimes in Avid with a distorted image. They are going to test a few more devices like an Alchemist and something else I can't remember the name. The issue is the original being 29.97P and not 23.976 with pulldown added. Curious what others have done or think might be the proper device/mode to try. I'm thinking 29.97P would be easier to convert the 29.97I/59.94I but I'm not really sure if that's true. Hind sight is always great in these situations.
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> John Moore
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> Barking Trout Productions
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> bigfish@pacbell.net
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