VP18: Video Event FX - Event Pan/Crop causes lag and stuttering

jane-d wrote on 12/31/2022, 3:39 PM

Purchased Vegas Pro 18.0 from the Humble Bundle deal, checked for the latest update.

My PC : Windows 10 64bit i5-10400 CPU @ 2.9 GHz and 48GB of ram.

I am almost done editing my vacation video but I need to rotate a few clips that are sideways (shot vertically on my phone, but showing sideways in VP18).

I click on the Even Pan/Crop button and try to rotate it -90Degrees, but it slows the computer down and freezes and lags a lot. Play back is unusable when it comes to this specific clip. All the footage is shot using my Pixel phone. If I undo the effect, playback is smooth again.

I suspect it is a software bug?

Comments

DMT3 wrote on 12/31/2022, 3:44 PM

Not sure why it is crashing. You could select the clip in the media pool and rotate it using the right click options.

jane-d wrote on 12/31/2022, 4:07 PM

Hello DMT3, in the Project Media window, when I right click to Rotate 90 degrees Clockwise, it doesn't do anything. Possible another software bug.

What did work was clicking on "Properties". In this window, in the Rotation, you can click "90 degrees clockwise" and hit OK.

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When I try to zoom into the clip now, it still causes the lag/stutter (VP18 becomes unresponsive for 15secs, it says "Not Responding").

So I removed the zoom and left the clip as is.

Still not sure what is causing the stutter but at least I am able to finish my video for now.

Thank you

Former user wrote on 12/31/2022, 8:18 PM

I tested with using a feathered mask in VP20, as I know that slows Vegas down, and should show up other processing problems more readily. From what I can see orientated 0.0 and -90 works better than +180 and +90, although -90 still causes lag but not decoder spiking , Lag will often correlate with decoder spiking due to overload that also causes GPU processing spiking(wasting resources)

But my problem doesn't seem anywhere as severe as you've described. Maybe they improved things with VP20 or your computer is more sensitive to the processing overloads and would behave similar with VP20.

Here's a comparision using the free capcut, even with its added tiktok effects it doesn't lag. the paper crumble effect that looks to be lagged actually is the same when rendered. The most impressive bit is I don't think this NLE even uses GPU, it had GPU decode and encode, but doesn't SEEM to use GPU for processing, at least not for the FX I added.

andyrpsmith wrote on 1/1/2023, 5:57 AM

Jane-d one possibility is that the media you are using is variable frame rate which Vegas does not like. If you use the free Mediainfo and post the details of your media from your phone here we maybe able to help you more. It is also possible to change the media to fixed frame rate with the free Shutter Encoder if that is the case.

I am using V20, if I take a 4K clip and rotate it 90deg the preview window frame rate (25fps) does not change on playback.

You can see in this screen shot taken during play back the frame rate is at 25fps.

Same with V18 (527)