120fps project and 120fps output possible?

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Jeffrey Baker

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120fps project and 120fps output possible?

PostMon Aug 29, 2016 3:51 pm

Hi, I have a special project that needs to playback at full 120fps in 1080P (Non Drop Frame) and I'm having trouble finding the right tools to get from start to finish since most 120fps footage is meant to be slowed down...

The project involves a changing opacity to create a wave pulse that slows over time (corresponding to hertz).

I have the 120fps footage (although that is actually not required for this as I can up-convert 30 and 60fps and be just fine - stutter is a non issue for this kind of project.

I have an expression in After Effects that allows me to loop each set pf opacity on/off changes (on 2 frames off 1 frame, repeat for certain length of frames, for example) and that sequence slows to the equivalent of 7.5hz over the course of a few minutes.

Anyway that is background. So I have the expression to automate the process, but After Effects maxes out at 99fps -- and FCPX and Adobe Premiere max out at current industry standards of 60fps.

What about Davinci Resolve? Is it frame rate agnostic? Does anyone know of a compositor or NLE that is?
I know this is a bit out there, so thanks for your time to anyone who has any ideas on how I might proceed.
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Simon Rabeder

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Re: 120fps project and 120fps output possible?

PostTue Aug 30, 2016 9:50 am

You could try to work at half the rate and half the frequencies and speed up your video after export. Not sure about which format a 120fps video should have. I am not entirely sure if such a framerate exists yet (what is your final display?). SMPTe surely does not go there.
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Tero Ahlfors

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Re: 120fps project and 120fps output possible?

PostTue Aug 30, 2016 10:17 am

It's just not about being frame rate agnostic. It's also about having a supported format and playback devices for that. The new Ang Lee film is in 120fps and it needs a special gear to run as it's not standardized. It's probably made on high end finishing system that has proprietary changes made on it.
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waltervolpatto

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Re: 120fps project and 120fps output possible?

PostTue Aug 30, 2016 3:11 pm

Tero Ahlfors wrote:It's just not about being frame rate agnostic. It's also about having a supported format and playback devices for that. The new Ang Lee film is in 120fps and it needs a special gear to run as it's not standardized. It's probably made on high end finishing system that has proprietary changes made on it.


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Jeffrey Baker

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Re: 120fps project and 120fps output possible?

PostSat Aug 12, 2017 11:17 pm

Native 120fps edit and export could be very useful for headset and VR playback. In my case it was to peotype a alpha wave simulation. I ended up using AE at 96fps because I had a script for the effect in that app.
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Uli Plank

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Re: 120fps project and 120fps output possible?

PostTue Aug 15, 2017 1:52 am

DR 14 should go all the way to 120 fps and you can conform to whole number frame rates starting with 1.

Of course, your hardware should be quite capable for the higher rates.
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rick.lang

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120fps project and 120fps output possible?

PostWed Aug 16, 2017 9:30 pm

As for playback, if it's for a high-end television, would not 120 fps be the new normal given refresh rates of 240 fps?


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Marc Wielage

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Re: 120fps project and 120fps output possible?

PostThu Aug 17, 2017 6:34 am

rick.lang wrote:As for playback, if it's for a high-end television, would not 120 fps be the new normal given refresh rates of 240 fps?

God, I hope not.
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Jamie LeJeune

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Re: 120fps project and 120fps output possible?

PostThu Aug 17, 2017 8:39 am

rick.lang wrote:As for playback, if it's for a high-end television, would not 120 fps be the new normal given refresh rates of 240 fps?

Not yet, but sometime soon it will be possible. Refresh rates and frame rates aren't exactly the same thing. All the current 4K TVs max out at 120Hz refresh rates, but that's mostly there to accommodate 60fps 3D and the TV's own internal motion smoothing junk, rather than 2D 120fps content. At the moment there is not any way to feed a 2D 120fps signal to the TV.
HDMI 2.1 is planned to handle 120fps, but its not been released yet.
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Andrew Kolakowski

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Re: 120fps project and 120fps output possible?

PostThu Aug 17, 2017 9:59 am

Jamie LeJeune wrote: Refresh rates and frame rates aren't exactly the same thing. All the current 4K TVs max out at 120Hz refresh rates, but that's mostly there to accommodate 60fps 3D and the TV's own internal motion smoothing junk, rather than 2D 120fps content.


It's very same or actually in most cases better junk than Resolve or other tool algorithm for speed adjustments :)
Black frame insertion is much "nicer" technology which keeps original motion feel better, but offers "smoother" experience (like cinema). It's getting more and more popular within TV manufactures.
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rick.lang

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Re: 120fps project and 120fps output possible?

PostFri Aug 18, 2017 2:30 pm

Marc Wielage wrote:
rick.lang wrote:As for playback, if it's for a high-end television, would not 120 fps be the new normal given refresh rates of 240 fps?

God, I hope not.


Maybe in South Korea and Japan...




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