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Another 108024p/30p/29.97/60i Question
Hello Creative Cow AE Gurus! I posted earlier asking the differences between a Photoshop HDTV 1920×1080 file as opposed to a DVCproHD1920x1080 and got the answer from Kevin that HDTV 1920×1080 would be the best for preparing still images for AEFX. Thank You Kevin!
So that led me to one more question and I think I’ll be able to start this new project I’ve been working on.
Basically I’m taking really nice photographs sliced up in Photoshop and animating a sort of 3-D walk through inside the photograph elements. As well, I am adding live video for the skies and live video scenes that are playing in the interiors of houses and buildings. So in effect, I’m creating a slow zoom into a window where there’s live action happening.
I’ve tried many tests with various combinations and had great results but ran into some “wonkiness” as well, (jutters_hiccups_split lines_slow playback_horizontal banding etc..) I would like to create the perfect workflow for this style and don’t want to start real shots until I settle on two factors:
Source footage Format and the After Effects composition format. Which two combinations might “play well with each other” for a smooth workflow? Is 720/24p a better option? I’ve tried many combos but still haven’t found the perfect combination.
Any tips on settings would be greatly appreciated!
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2 Replies
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[Stuart Christensen] “Source footage Format and the After Effects composition format. Which two combinations might “play well with each other” for a smooth workflow?
if you have a choice, you’d like your source footage and comp settings to match. as for which hd flavor to go with (1080i, 1080p, 720p60, 720p24…) it will largely come down to what the final destination is. if your final destination is for broadcast playback, your better choices would be 1080i, 1080p30 (29.97fps), or 720p60 (59.94fps). if you destination is blu-ray 1080p24 (23.976fps) may be a better choice (it’s the film standard for blu-ray, but any of the hd sizes/frame rates would be fine).
you mentioned earlier that you were working in a 1080 frame size, so you might want stick with that size for your footage too. i don’t see any reason to go with 720 for your footage and scale it up to 1080 for your graphics and comps.
ae will normally correct any pixel aspect ratio discrepancies between footage and comp, the same way it will for your images, so you can take 1080 footage with a 1.5 or 1.33 par (pixel aspect ratio) and drop it into a 1080×1920 square pixel comp and ae will compensate for the difference.
[Stuart Christensen] “Is 720/24p a better option?”
personally, i don’t understand 720p24… 1080p24 has twice as many pixels and the same frame rate. in my book that makes it twice as good… i get 720p60 and i like working with it – more frames, smoother motion, no interlacing – that’s good, but i just don’t understand 720p24. maybe somebody will explain why 720p24 exists… — rant over.
but generally, you’d like to keep your footage and comp specs the same and they should reflect what the final output is going to be.
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW -
Thanks again Kevin! Yes, I like the idea of sticking with the 1080 stuff because it only makes good sense. In the past I have read that the reason for 720/24P was that the human eye can’t tell the difference between 720p and 1080, but I don’t know what kind of eyeglass prescription they were wearing because I can see the difference. 720P24 is sometimes a suggested way to increase the amount of media you can fit on a P2 card and perhaps less taxing on your system during the edit stage. But I agree with you, stay with the big stuff.
Anyway, thanks to your help I’m on the right road. I will standardize this flow based on your suggestions. I’m new to AEFX (one month so far!) and it is quickly becoming my new obsession. A big thanks out to Andrew Kramer as well for all the super tutorials! I love the cow and all the folks who lend a brain to help out! MOOOOOOOO!
I know alot….but not as much as the other guy.
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