Love Live Save and Optical flow

I have explored very little of Resolve 15 so far. But I love the smooth slow motion of 25% off of the 25fps(sony alpha 100 fps slomo). It makes my resolve crash everytime. But because of that Live Save feature I don't have to do it again and again and worry to save it.
There are artifacts, but I choose the least problematic (with action I need) 2/3 sec out of that 400fps slomo footage.

I'm not sure if you fully understood how slo-mo works in Resolve, there should be no artifacts (other than some from the camera). You slow your clip down by going into "Clip Attributes" and change the target frame rate to the one in your timeline, like from 100 fps to 25 fps. That should look perfect and there shouldn't be any crashes either if your machine is not to weak for Resolve anyway.

Can you tell us about your hardware, including the graphics board?

Not so Uli, if you use the optical-flow setting for retiming then it is quite possible to get some very strange artifacts in the footage that results. I have seen this myself and although optical flow is good for about 80% of my retime operations, sometimes I simply have to use the "nearest" or "frame blend" mode, depending on the mount of motion involved.

That's why I supposed that he is using off-speed without needing it. After all he has 100 fps footage, but the text was not so clear to me, maybe he needs to slow further down.
I know that Optical Flow can introduce a lot of artifacts, and one even needs to play with the options to see what fits the footage. The new enhanced mode is not always better.

Not so Uli, if you use the optical-flow setting for retiming then it is quite possible to get some very strange artifacts in the footage that results. I have seen this myself and although optical flow is good for about 80% of my retime operations, sometimes I simply have to use the "nearest" or "frame blend" mode, depending on the mount of motion involved.

Exactly.
Resolve has a project based setting so if you want to use optical flow in a project you can't change the setting.

I'm not sure if you fully understood how slo-mo works in Resolve, there should be no artifacts (other than some from the camera). You slow your clip down by going into "Clip Attributes" and change the target frame rate to the one in your timeline, like from 100 fps to 25 fps. That should look perfect and there shouldn't be any crashes either if your machine is not to weak for Resolve anyway.
Can you tell us about your hardware, including the graphics board?

Sony SnQ settings convert 100fps to 25 fps in camera.

My hardware is
core i5 2.8 GHz
32 GB RAM
GTX 960 4GB
Win 10 Pro

It plays my 50fps FHD footage in real time.
Now crashing is so bad that just playing that optical flow slomo crashes resolve.

That's why I supposed that he is using off-speed without needing it. After all he has 100 fps footage, but the text was not so clear to me, maybe he needs to slow further down.
I know that Optical Flow can introduce a lot of artifacts, and one even needs to play with the options to see what fits the footage. The new enhanced mode is not always better.

If I get buttery smooth slomo, then what is the problem in using it? As soon as you see that slomo you'll love it.

You mentioned artifacts, so I wanted to point that out. Excuse me if I misunderstood your first question, I didn't get that you want to slow that 4:1 slo-mo further down and that the footage had been retimed in camera already.

Regarding the crashes I already answered in the other thread.

You mentioned artifacts

yes brother as RC had mentioned. Artifacts are the side effects of Optical Flow. I am ready to ignore them for the slomo I am getting.
Crashes and flickering of rendered clips is what bothering me.

You mentioned artifacts

yes brother as RC had mentioned. Artifacts are the side effects of Optical Flow. I am ready to ignore them for the slomo I am getting. Crashes and flickering of rendered clips is what bothering me.

If it's H.264 Long-GOP files (which it most likely is), then that puts more stress on your system. Try converting the material to a less-compressed format like DNxHD or DNxHR and see if that helps avoid the crashes.

If it's H.264 Long-GOP files (which it most likely is), then that puts more stress on your system. Try converting the material to a less-compressed format like DNxHD or DNxHR and see if that helps avoid the crashes.

How to convert to DNxHR? thru Resolve/premiere or any other means?

I have a work around for flickering issue, which I never saw in 14.3. And that is closing resolve and reopening it just for rendering and that eliminates flicker in rendered video.

[Shrinivas Ramani]

closing resolve and reopening it just for rendering and that eliminates flicker in rendered video.

Could you post your system specs? And a link to some logs captured soon after a crash? And if possible, a screen capture or a phone video showing some artefacts when you run into them?
viewtopic.php?f=21&t=71894

closing resolve and reopening it just for rendering and that eliminates flicker in rendered video.

Could you post your system specs?

My hardware is
core i5 2.8 GHz
32 GB RAM
GTX 960 4GB
Win 10 Pro

[Shrinivas Ramani]

Depending on resolution and codec and if you're doing complex image operations, the GTX 960 may be a bottleneck. Logs and more info will help

Depending on resolution and codec and if you're doing complex image operations, the GTX 960 may be a bottleneck. Logs and more info will help

bottle necking is not big problem right now.
Big is the crashing of Resolve every 5 minutes
Pls suggest me a solution.