I'm using After Effect 6.5 to export a 1 minute motion graphics that contains about 450 layers. When I make movie to avi it becomes jaggy/skipping. Why is this happening? I've make sure that the fps is set to the right one (PAL 25 fps), and resolution is 2880 x 810. Is it possible because of the 450 layers or because of the big resolution? I tried using File Export, but the resolution turned out all wrong (and I don't see a place where I can put custom resolution settings on too), however, the footage isn't jaggy/skipping when I do this.
Re: Jaggy/skipping avi footage from AE by Darby Edelen on Apr 8, 2008 at 12:09:35 am
If your AVI is a lossless file with a resolution of 2880x810 then it will have a data rate too high for your Hard Drive to keep up with.
Try bringing this video back into AE and RAM previewing it. This should load the frames into RAM (which has a much higher data transfer rate than your HD) before playing it back... However your RAM will fill up with the information very quickly.
Just make sure that it's not a problem with the render, and then trust that the stuttering is due to the high data rate.
As for the jaggies, it might help to see a frame to try and figure out what the problem is. Did you render the file with the lossless setting or did you pick a different codec than the default?
Darby Edelen Designer Left Coast Digital Santa Cruz, CA
Re: Jaggy/skipping avi footage from AE by Ditha Angraini on Apr 9, 2008 at 2:07:16 am
I exported it as uncompressed avi through make movie. And it is a lossless file. I tried bringing it back to AE and did a ram preview, it worked while I played it back, but once I exported it again, it was still jaggy. I tried exporting as other formats, and also did a series of tests using different compressors, some couldn't handle the resolution, while the other cut down the quality dramatically.
Re: Jaggy/skipping avi footage from AE by Ditha Angraini on Apr 9, 2008 at 9:34:01 pm
I meant by jaggy is that the movement is not smooth. I can't put still image in due to company and client's policy.
I've finally managed to get the movement smooth for playback, by bringing the jaggy avi into windows media encoder, and exported it as wmv, however it does take a long time.
Re: Jaggy/skipping avi footage from AE by Darby Edelen on Apr 10, 2008 at 2:21:08 am
Your video isn't playing back smoothly because it is a lossless AVI with a very high data rate that cannot be streamed directly from your hard drive. When you encoded it as a WMV you reduced the file size by reducing the data rate which allows you to view it in real time without stuttering. All of the frames are present in your lossless AVI, they're just too large to be accessed in real time by your hard drive.
Darby Edelen Lead Designer Left Coast Digital Santa Cruz, CA
