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After Effects Playback speed issue
Using the space bar…
Why is it that Pinnacle Studio 9 plays my video perfectly (29.97fps), while After Effects plays it very slow, like 1 or 2 FPS, and sometimes skips frames? I know I’m doing something really stupid, because after effects should be super fast. If windows media player can view my footage properly, why does After Effects not?
The video is from a digital video camera in DV format NTSC, 720×480, 🙂
CPU: XP2100
GPU: Geforce 4200 (128mb)
RAM: 512MB 2700mb/s
Harddrive: Maxtor 80GB 7200RPM, 20GB used -
3 Replies
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Because After Effects plays back the footage using RAM…where as Windows media players uses your video card, I believe….
anyway you must do a RAM preview in after effects before you can watch the footage at realtime.
the ram preview button is located next to the play and stop buttons, looks like a play button but with two areos behind it…
or just search the help menu for Ram preview.
I can’t give a better explanation cause i’m nowhere near AE right now -
After Effects always has to render every frame of your video (within the work area), whether you do anything to it or not.
As Josh wrote, search the help for “RAM preview”.
Steve
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Windows media player plays a compressed non-dynamic video.
After Effects, has to calculate every frame – not just footage – effects, positional info, motion blur. All of that ios calculated on the fly. You must do a RAM review to commit it to your computers Memory, so that it can play it back in real time.
Not that the moment you make any change to your animation, you will lose some or all of your cached frames – meaning you’ll need to do another RAM preview.
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http://www.allbetsareoff.com
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