It's worth stating that slowing to 25% is pretty extreme. And optimistic! I wouldn't normally recommend less than 50% - and your results will tend to be better, too.
Thanks so much for watching. Yes, that's true that only slowing to 50% will yield better results, but it should be noted that the same artefacts will still be present. We deliberately slowed our shots to 25% to make the demonstration more obvious. Two things to consider: - There are lot's of scenarios where slowing to 1/4 speed would not be considered extreme. For example action sports, or speed ramping to 0%. - You might already be aware, but for the benefit of others... Slowing by integer factors (i.e. 50%, 33%, 25%, 20%...) will often achieve better results than non-integer factors. Great to have you here Jonathan. Thanks!
Well explained. For shots with visual artifacts you can also try "Motion Estimation > Speed Warp". It can be much slower to render because it's more computationally intensive, but the results are usually much better.
Try combining optical flow and speed warp. It will add missing frame rates and give super smooth, slow motion. The downside is that it took longer to render (even with render in place)
Hi from Puerto Rico, this lady always find the way, for me to learn something new, even if alredy know about it and keep my attention, Thanks for your tips.
In My opinion, optical flow inherit the same motion blur from the original footage. Therefore, unless the original one already has high shutter speed, the slowed speed will not look "naturally blurred".
Thanks for this explainer video! I'd use it more for dramatic/creative.dream like effect rather than viable slow mo but in any case, super helpful to know about.
Would adding slight additional motion blur help hide the artifacts? Mind you I’m an amateur, so if that’s a silly question, you know why. Thanks for the tutorial, just what I needed.
Hmmm, that's a good thought, but sadly I would have to say no, I doubt it would be enough to mask the artefacts. Or perhaps it would add visual issues of its own. Thanks for watching. Great to have you here.
What if we shot in 60fps and we're just slowing down 50% to 30fps on a 30fps timeline. Then there shouldn't be any need for Optical Flow, correct? Will the 'nearest' setting just drop every other frame and deliver the smoothest slow motion possible?
Nearest will deliver EVERY frame when running 60fps at 30fps (50%) in a 30fps timeline. If you were running 60fps at 60fps (100%) in a 30fps timeline then it would deliver every other frame. Hope that helps.
Yes, it's possible. Place your 24fps in a 60fps timeline. By default Resolve will use the Nearest frame mode for the frame rate conversion. If you want it to have the appearance of 60fps playback, change retime process to optical flow and motion estimation to Speed Warp for the best possible frame interpolation. Be cautious though, remember you are trying to make more from less.
Brilliant as always!
Thank you very much!! Thanks for being here.
It's worth stating that slowing to 25% is pretty extreme. And optimistic! I wouldn't normally recommend less than 50% - and your results will tend to be better, too.
Thanks so much for watching. Yes, that's true that only slowing to 50% will yield better results, but it should be noted that the same artefacts will still be present. We deliberately slowed our shots to 25% to make the demonstration more obvious. Two things to consider:
- There are lot's of scenarios where slowing to 1/4 speed would not be considered extreme. For example action sports, or speed ramping to 0%.
- You might already be aware, but for the benefit of others... Slowing by integer factors (i.e. 50%, 33%, 25%, 20%...) will often achieve better results than non-integer factors.
Great to have you here Jonathan. Thanks!
your are right, her intentions might be to show, what happens if we go to extreme, but thanks for pointing that out.
Well explained. For shots with visual artifacts you can also try "Motion Estimation > Speed Warp". It can be much slower to render because it's more computationally intensive, but the results are usually much better.
Thanks for sharing! I like to keep 'Smart Cache' turned on to improve playback.
Try combining optical flow and speed warp. It will add missing frame rates and give super smooth, slow motion. The downside is that it took longer to render (even with render in place)
Great tip. Thanks :)
Hi from Puerto Rico, this lady always find the way, for me to learn something new, even if alredy know about it and keep my attention, Thanks for your tips.
Thanks so much. Glad the videos are helpful.
Excellent summary on optical flow use -- confirms what I have discovered empirically, but it's nice to know I haven't missed anything. Subbed.
Glad you enjoyed the video. Thanks for commenting.
In My opinion, optical flow inherit the same motion blur from the original footage. Therefore, unless the original one already has high shutter speed, the slowed speed will not look "naturally blurred".
Thanks for this explainer video! I'd use it more for dramatic/creative.dream like effect rather than viable slow mo but in any case, super helpful to know about.
That's a great use case too. Thanks for watching and commenting.
More content!! This is all gold, cant wait for the paid course to release
Thanks Spencer, we're hard at work on it and hope to have it ready later in the year. We'll keep everyone posted with the progress.
I also have used this combined with speed warp to put a video in a desired frame rate (a 23.97 fps to 30fps timeline)
Yeah, that’s a good way of eliminating stuttering motion on frame rate conversions. When you say ‘this’ what exactly are you referring to?
Very cool, thank you!
Thank you, Glad you liked it!
Excellent 👌👌👌👌
Have used optical flow. it's not as smooth. Next vidoe clip i'll change it to 60fps. make it whole lot easier, thx for the tips. like it.
You are welcome.
So good thanks a lot
You are most welcome.
Would adding slight additional motion blur help hide the artifacts? Mind you I’m an amateur, so if that’s a silly question, you know why. Thanks for the tutorial, just what I needed.
Hmmm, that's a good thought, but sadly I would have to say no, I doubt it would be enough to mask the artefacts. Or perhaps it would add visual issues of its own.
Thanks for watching. Great to have you here.
I tried optical flow using standard free version and gave me a pop window to purchase the studio version. Does standard version allow optical flow?
You can use optical flow in the free version but not the highest quality version of it. You should be able to configure it to work.
What if we shot in 60fps and we're just slowing down 50% to 30fps on a 30fps timeline. Then there shouldn't be any need for Optical Flow, correct? Will the 'nearest' setting just drop every other frame and deliver the smoothest slow motion possible?
Nearest will deliver EVERY frame when running 60fps at 30fps (50%) in a 30fps timeline. If you were running 60fps at 60fps (100%) in a 30fps timeline then it would deliver every other frame. Hope that helps.
How can I blur a video shot at a high exposure speed and remove the strobing effect?
Try the Motion Blur effect in the colour page.
@@team2films thanks
thx😘
You're welcome!
like can we convert 24fps to 60 in davinci without altering video speed?
Yes, it's possible. Place your 24fps in a 60fps timeline. By default Resolve will use the Nearest frame mode for the frame rate conversion. If you want it to have the appearance of 60fps playback, change retime process to optical flow and motion estimation to Speed Warp for the best possible frame interpolation.
Be cautious though, remember you are trying to make more from less.
Changing the Motion Estimation to Speed Warp will help, but, slowing down to 25% is extreme.
Heya Richard, great suggestion! Thanks so much for watching :)
@@team2films you're welcome. you will need to cache as it's heavy on the system.
Speed warp works fast on nvidia gpu with rt cores. I have not tried it on a mac m chip though
First✌🏻
👏🏻 Appreciate you watching, thank you!