BTW, regarding the question of “taking longer to render TIFFs versus MOVs”:
The rendering step is the same for both of these. The export/encode step is what’s different—and that’s not the part that takes much time.
(Keep in mind that there are two steps to creating output from After Effects: rendering and exporting, where exporting includes encoding. Render settings dictate the former; output module settings dictate the latter.)
There are many benefits to creating image sequences instead of movie files. One benefit is that you can split up the render operation among computers more easily with image sequences. Another reason is that a render that fails near the end leaves you with a lot of good frames—up to the one that failed—if you’re outputting images; if you’re creating a MOV file, you have to start over.
Todd Kopriva, Adobe Systems Incorporated
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