[Andrew Matthews] "But for some reason, AE is having real difficulty rendering this simple movement. It jumps and stutters like crazy, getting worse each time you play it. Whether playing in the viewer or rendering out to a QT file, whether I make small adjustments to the motion paths, or change any other settings, it can't play it smoothly."
In AE, are you using
RAM preview [link] (hit the zero key on the numeric keypad on the right side of your keyboard), or just pressing the space bar to play? Nothing is real-time in AE, and everything must be rendered to RAM before you can see a real-time preview.
In QuickTime Player, it is normal to see stuttering if you're trying to play back lossless renders. AE's default lossless output module generates an intermediate file that is designed for additional post-production use, not direct playback. These files are generally huge, with very high data rates, and very few computers can play them back in real time without stuttering. For more, see this
Adobe FAQ [link]: Why is my output file huge, and why doesn't it play back smoothly in a media player?
To help you choose a more suitable format for your needs, see the related
Adobe FAQ [link]: What is the best format for rendering and exporting from After Effects?
Walter Soyka
Principal & Designer at
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