@pierre-k Mine played better than yours but I do see a slight stutter, I've seen this on other's videos & my own, It's VFR & there's a stabilizer in the camera, the faint stutter can be seen on the orig clip when played on a media player, for some reason Vegas struggles to display that properly & it seems to exaggerate it, Convert to constant & it plays as well in Vegas as the orig does in the player.

 

Would it play back smoothly if you lowered the size of the Preview window?

 

No. the window size does not affect the smoothness of the video. I use Igpu 770 for everything. It's strange that you play the video smoothly and I don't. Even if the number of images is full in the preview window.

@pierre-k Mine played better than yours but I do see a slight stutter, I've seen this on other's videos & my own, It's VFR & there's a stabilizer in the camera

Where do you see that my video has VFR? In media info I see variable bitrate. But the fps is 25. 🙂

@Gid the bitrate according to MediaInfo is variable. I don't see that for the framerate, which is 25.00.

I tried uploading a rendered video. It too played back much smoother than the playback @pierre-k showed.

I tried using OBS (first time) to record the timeline playback, but no matter the setting, viewing it wasn't as smooth as what I saw on my screen.

As for it playing back smoothly, it might come down to iGPU versus GPU in power processing.

When I'm home, I'll try Video - Off and Gtx970 in the preferences tab.

@pierre-k @Reyfox Correct, sorry it's too early for me, need more coffee. 🥱 But for whatever reason the converted event did play back smoother for me 🤷‍♂️

I had similar problems with mxf fullhd in the b300 version before they released a fix. It is possible that b314 and 315 only fix fullhd mxf. But that's just speculation. I will try to install the b208 version.

 

4K file plays back fine, I don't show it here, but it edits fine to

good? the video jerks. Look at the logo on the truck tarp.

 

https://drive.google.com/file/d/1JaMFSKaz9RqzkOt0nM7YWi8gPFh5sjMg/view?usp=drive_link

 

 

4K file plays back fine, I don't show it here, but it edits fine to

good? the video jerks. Look at the logo on the truck tarp.

I changed some settings in my capture software and I encode AV1, have to check that, the video does look jerky but yours has artifacts, I was mainly looking at that and noticing the difference

I just wish the beta testers showed as much passion in fixing Vegas we we do.

If you only had any idea what you were talking about... We were selected to be beta testers for a reason. Passionate or not, we're still not perfect, and still can't test every format under the sun in every possible hardware and software configuration.

UPDATE:
It doesn't matter if the Video tab is OFF, UHD770 or GTX970.
The results are just as bad.

Version b208.
videos are smoother and without the occasional crumbling glitches. However, even here the preview window is without active vertical synchronization and the image is cut vertically when moving. The video thus appears very choppy.
The movement will improve a lot if you switch the output to External monitor. Vertical cutting and tearing disappears and movement is smoother.

Primary monitor:

Secondary fullscreen monitor:

OBS can't capture the problem as much as it looks in real life on playback.

How to replicate:
If you have two monitors and the b.208 version, put the preview window on the main monitor and switch the external output to the secondary monitor. This will allow you to see both windows during playback. On the external monitor, the image is smooth with active vertical synchronization.

It seems that the External monitor is somehow more GPU accelerated and the events are smoother than in the classic small Preview window. Even if I turn off almost everything in it, the movement is still smoother.

Update 3
It seems that in the b208 version, the MXFs do not stop at the end of the cut and flow smoothly to the next event. B208 uses the mxfavc plugin.

Is there any chance to internally force Vegas b315 to use this plugin for MXF?

It's this frame here that intrigues me, I don't know how that happens, I don't see it

You show it's unrelated to GPU, so how does that happen for you in VP21b315, maybe it's to do with your system some how.

Does anyone see this? I forgot to copy the link but go back a page and look at the google drive link

@fr0sty Some people are beta testers for the wrong reason, it started with a break away faction wanting their own private forum, and that group got their wish, but not for the right reasons. I have personal communications with great Vegas beta testers ofcourse I know they exist too. You could oversee a regular performance review program. The more people with different systems the better, but they have to have the intellectual curiosity to want to break Vegas so it can be fixed

it started with a break away faction wanting their own private forum, and that group got their wish, but not for the right reasons

Could you send me a private message about this? Never heard of such a thing and seems hard to believe.

Still using B315. On my computer, if there is an issue during playback, I see the same issue in the secondary monitor. If there is a pause in a transition, I see it at the same time in both monitors.

I beta tested several software in the past (well over a decade) for a company that I think everyone would know, Corel. There were those who wanted to help the software improve, and those that wanted to be in the "in crowd". The only thing they brought to the table were complaints and how they thought things should be run. They didn't last long.

As for the "break away faction", how could they be a part of the beta testing unless there are others who could allow them access, making them too complicit? Doesn't seem like a good way to run a beta program.

Please note: Further comments only if they are "relevant to the topic originally posted". Thank you.

Here you can see how 4k MXF does not play smoothly, even though the Preview window shows the full number of frames

https://drive.google.com/file/d/1JaMFSKaz9RqzkOt0nM7YWi8gPFh5sjMg/view?usp=drive_link

The preview in Vegas has its limitations. It is slightly better if you use a Blackmagic card for the preview, but it does not become perfect smoothly. Beside that, the question would be a) what was the shutter speed that was used to prepare this file; and if it was 1/50s, then you will end up with some motion blure anyway. And it if was shorter, you will see a 25p video does not play smoothly. And b) if it necessary to become better in a preview.

But test other NLEs like Edius or Resolve, to see if they are better with the preview. Maybe they are.

Edit: what I see with the Decklink 4K card is, that it seems to be smoother if you use UHD 50p for the preview. But there seems to be still some motion blure.

It seems that the External monitor is somehow more GPU accelerated and the events are smoother than in the classic small Preview window. Even if I turn off almost everything in it, the movement is still smoother.

I do not know why you use a monitor with 1280x1040, and that with 60Hz. Here you can run into a preview issue from your monitor too - if you previe a 25p project.

You should use for the full preview of an UHD 25p project a monitor with native UHD resolution - that can be set to 50Hz really. This may also be part of the preview question - even if the Vegas Preview is not perfect. But to make it better, please use a UHD 50p monitor.

It seems that the External monitor is somehow more GPU accelerated and the events are smoother than in the classic small Preview window. Even if I turn off almost everything in it, the movement is still smoother.

I do not know why you use a monitor with 1280x1040, and that with 60Hz. Here you can run into a preview issue from your monitor too - if you previe a 25p project.

You should use for the full preview of an UHD 25p project a monitor with native UHD resolution - that can be set to 50Hz really. This may also be part of the preview question - even if the Vegas Preview is not perfect. But to make it better, please use a UHD 50p monitor.

thanks for the tip, but I don't have a UHD monitor and I'm not planning to buy one. I do not need him. I have two monitors. One primary LG 1920x1200 and the other Samsung 1280x1040 on which I have a Vegas preview window. Both have analog connections. It's enough for me to edit the video. The editing output is in 95% FullHD.

I repeat that any external monitor setting in the Option tab is only for Full preview on the entire monitor screen and works fine. There is no vertical decay of the image and the image is intact when moving.

I will only try the Panasonic Full HD projector, which has an hdmi input, and set 50hz and 60hz.