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Scrolling Text (Jpeg)…
I tried this many times. I have this credit that was typed up in illustrator and then output to Jpeg, PNG, and bmp and so on. Import into AE and then keyframe postions, so that the text scrolls up. The final mov file played, however there are parts of the picture got sluggish, jitters. I tried type those words directly into AE, the same thing happened; so i changed the font, it helps a little, but not completely. I’ve also tried this in Motion, the same thing. I wonder why this happens to both tools. Also the jitters happen in different places, if re-render. So it’s kind of random. Why does it do that? what can i do to improve it?
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3 Replies
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Have you previewed your stuff on a broadcast monitor or are you just playing the clips in your QT/ Media Player? That aside: There’s no 100% sure way of getting flicker free text, especially in standard PAL and NTSC with fields. Any horizontal line that’s smaller than 2 pixels will flicker as it does not appear on both fields and causes luma shift between fields. So check if your font has thin serifs or other thin lines. In addition, use a very slight blur and position your text with sub-pixel precision (zoom in beyond 100% and you can do so interactively). Both tricks will distribute your pixels between fields as they now are never exactly on one line.
Mylenium
[Pour Myl
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Mylene, Do you think this will work for the text issue I posted today? I will give it a go. Cutter
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Mylenium,
I don’t think what i saw was flicker. It looked more like a video with dropframe to me. There’s jumps in the motion. The feeling is like this: the frame rate drops and then picks up again. I did preview it on the ntsc montior, it’s the same where every it plays. The weird thing is that if i render again, the problem might disappear or appear elsewhere on the timeline. Any thoughts on that?
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