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Weird render glitch

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Gyan Doshi
Weird render glitch
on Nov 30, 2015 at 2:54:23 pm
Last Edited By Gyan Doshi on Nov 30, 2015 at 2:59:00 pm

I'm using Vegas Pro 12 build 770 and there's this project I have which consists of many short testimonials.

I made a very short montage to use as the intro to which I applied Film Effects (grain..etc) and there's a one-line text made in the bundled NewBlue Titler which pops up near the bottom and stays there. That's followed by the testimonial and a closer. I rendered out the edits using Batch Render and delivered them a few days back. So far, so good.

Today, the client wants to use another closer, so I do a project 'Save As' to v2, substitute the new outros and do a batch render again. The first two clips turn out fine but I get this weird glitch in the opener within all subsequent clips, which I can only describe as an animated masking effect at the bottom See the linked MP4s at the end.

It's not related to the new project file as this now happens with the original unchanged project as well. But there's a complication. If I play through the opening of each edited clip, then select its region and render it individually (using the same preset as in the batch render), then no glitch occurs. If I select a region without previewing it, then it occurs even from the Render As dialog.

Now, last night, just before closing up, I installed Red Giant Universe free trial and tried out a few transitions in another timeline. This seems like the obvious 'fly in the ointment' but before I uninstall that, I want to check if anyone else has experienced this glitch and if it's unrelated.

Here are the sample MP4 links, cropped and padded via ffmpeg, to show only the affected region. I did not spot any other glitches in the renders.

Good render:



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Steve Rhoden
Re: Weird render glitch
on Dec 2, 2015 at 12:35:14 pm

Well for starters you can try temporarily uninstalling Universe and see
if that's what causing the problem, Universe has specific Video card
And importantly make sure no other application is opened and running while
Vegas is rendering. Sometimes glitches appear in final renders when another
heavy resource application is opened.

Steve Rhoden (Cow Leader)
Film Maker & VFX Artist.
Owner of Filmex Creative Media.
Samples of my Work and Company can be seen here:

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