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Old 17-04-2004, 07:15 PM   #1
Fade
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Question Rendering Still Image Problems

I've been rendering my animations to still RGB images (tiff32) recently and then loading them into adobe premier as an image sequence. Then saving them out from premier as avi's. I've been having some problems with this method however, as i've noticed that the animations are a bit overly jerky. Its a noticable stutter.

I never really had this problem before when just rendering straight out to avi, so i'm wondering why its happening. Can anyone who's more familiar with this method offer some advice?
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Old 18-04-2004, 04:03 PM   #2
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Doesn't anyone use this method, i thought rendering to still images and then loading the image sequence into adobe premier was *the* best way to keep quality to the max. Surely someone has encountered this prob at one time or another?
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Old 18-04-2004, 10:19 PM   #3
Mark
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I always render out to stills and then compress using Premiere.

However, I've never had the problem of the frames being overly jerky before.

Only things that really spring to mind are (1) are your frame rates set the same in LW and Premiere - If you've renedered one at 24 FPS and the other at 30 FPS then you'll probably get some strange artifacts -- especially if you've stretched the sequence on the Premiere timeline to fit the timespan you think it should fill.

The other thing I suppose is that if you have motion that is too fast for the camera to track, and no motion blur in place. This will also seem to jerk or strobe on your final output - render it with at least 50% moblur and that should ease slightly.
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Old 19-04-2004, 10:34 AM   #4
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Smile solved

Thanks Mark, yeah one sequence i have does move quite fast, doesn't have any motion blurring applied, and it does indeed cause that effect. Normally i would apply motion blurring, however i was in a real hurry and didn't want the render to take overly long.

The main problem I have found however was being caused by frame rate differences. I was rendering out the frames from LW at 30fps, my knowledge of Premier wasn't great so i was simply choosing a default setting of PAL video for windows at 25fps. Then, to get it to work at 30 fps, i was using the option of 'interpret footage at 30fps' from the advanced menu, thinking this would sort it.

This was of course wrong, i changed my default settings to NTSC video for windows, at 29.97fps this was fine and seemed to get rid of most of the stuttering. Thanks for your help!
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