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aliasing improvement
Hey guys,
did some animations for a client that I ftp’ed to him to edit on AVID. They all came out great except for the last one which has a very slow scrolling text. It’s creating a slight aliasing problem.
Any suggestions on how to improve? I’ve done the following:
– used the illustrator text layer in AE to create the text
-scroll using the position attribute
-rendered best settings (lossless with alpha) with upper field first, lower field first, and no preference (gave them three for peace of mind)Any other ideas (cost effective please)? I’m usng AE7 proessional. I think they are editing on AVID.
Rick
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6 Replies
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Avid likes straight alpha. Did you give them that?
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forgive the stupid question,
Are you asking did I just render an alpha only and send? That I didn’t. Is that what I should do or are you talknig about something else?
Rick
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it’s a speed problem. You’re splitting scan lines.
You can see this in the comp window if you temporarily double the frame rate of the comp and step through one field at a time. The only solution is to change the speed of the roll or add enough blur to disguise the problem.
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Not a stupid question. I’m asking if you rendered “RGB+straight alpha” or “RGB+premultiplied alpha”.
Though the other fellows may be more on target …
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if you use the expression for your credit roll in the post linked to by dave, i updated the expression a few months ago to allow for keyframing start and end positions and field friendly check box… you can download the preset here, its the one called flickerfree credit roll.
it does require version 7 and up, just because i haven’t got around to digging up an older version to create a version 5.5 preset (i know i still have it somewhere).
if you just want that expression, search the expression forum, i had been troubleshooting it there about 2 months ago… you’ll need to add the check box control and name it ‘field friendly’
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
Thanks for all the input. I did the math computation stuff and explained to my client the ‘tradeoff’ in positioning or time. He was cool with that and It looks great now. thanks so much for everyone’s input.
Rick
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