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Need to add blink effect to 120fps comp – any way?
I’m creating a controlled blink effect that starts at 120hz and slows to below 20hz over time. I need to do this in a 120fps comp to get the granularity needed for the effect to work. I have the expression I need to do this and have tested at 60fps – but I can’t figure out how to do it at 120fps and output a 120fps master. I wish I could ask Ang Lee who just did this on his latest movie! Anyway this is not that kind of project… But is it possible? If not in AE, what editors support a true 120fps timeline or composition?
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4 Replies
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Yes I use all those apps. It’s strange they are not frame rate agnostic at this point (especially AE).
I know media encoder will keep the frame rate when transcoding but I really need to use the expression in AE…
Maybe I could go with 90fps and see if that works well enough… -
Lots of video applications are tied to common video standards — and there is no 120fps standard. That said, I certainly agree that Ae especially should be able to handle arbitrary HFR natively.
Assuming you have some way to play 120fps back (how are you doing that, by the way?), you could do all your work in Ae at some multiple of the speed and use image sequences (which have no native frame rate) for interchange with your HFR playback. You’ll have to render to truly test, though.
Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive | RenderBreak [blog] | Profile [LinkedIn] -
This project is for a museum video installation so the hardware and screen will be controlled. I’ve done some tests and a powerful gpu card can output 120fps without dropping frames at 1080P if I use an a codec that is not cpu intensive (according to VLC player). But I’m just in the proof of concept phase so I’m not sure about 4K yet.
The video is a brainwave experience. The video itself does not have to be 120fps (although it can be), but the flickering I induce with an AE opacity expression does need to playback at 120 to work.
I just don’t know how to replicate the expression (other than manually – which would take forever) in another effects program. But if someone knows of one, I would be excited to try it out for this project. -
Many computer monitors and projectors work at 30Hz or 60Hz, so make sure your playback device is capable of doing what you need too.
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