Vegas 8.0 preview/render issues - weird time delay

dirtynbl wrote on 7/2/2009, 7:34 PM

Here's my issue.

I have a project that is 1280x720 24p (23.976 fps). I rendered a Cineform AVI out of Vegas and then did a bunch of keying in After Effects.

I have no rendered the keyed files out of AE as 1280x720 23.976 fps UNCOMPRESSED AVI's.

I have dropped them into Vegas.

Individually, they sync perfectly with the audio so I think they match exactly.

However, the video goes wonky when I start making cuts. As you can see in the photos my time marker is over the scientist holding up a test tube. That's what the preview window should be displaying, however, its (and I tried switching from Best, Good, Draft, etc) displaying the man in the suit....but that clip ended several frames ago.

If I advance a few frames it finally displays the scientist. These are two separate files. I thought it might be a preview issue, but this occurs in the render as well.

I tried to slice off the beginning of the scientist clip and drag it back so that it would delete the incorrect part. One of two things happens, Vegas shows black for a few seconds then starts the scientist clip OR Vegas brings back the man in the suit.

I thought...ok...Vegas 8 bug, no big deal. So I copied every track and pasted in to Vegas 7.

Same problem.

Can anyone help, I've never had this issue and it's driving me insane.


musicvid10 wrote on 7/2/2009, 8:09 PM
rendering true uncompressed uses a huge amount of disk space, a huge bitrate, and a huge amount of system resources. I suggest you consider another second intermediate for more or less faithful behavior once you get back to Vegas preview.

Just why in the heck are you going from Cineform to uncompressed AVI in AE?? Surely you have some other alternatives; your motivation is truly beyond me . . .
dirtynbl wrote on 7/2/2009, 8:58 PM
I don't own any codecs that work rendering out of After Effects.

I bought an old AspectHD license off of eBay, but sold it because even though it let me render Cineform AVI's out of After Effects that worked great in Vegas installing it caused Vegas to be unable to render a Cineform Intermediary. Something about AspectHD ruins the Vegas Cineform.

So my usual work flow is uncompressed After Effects to Vegas and Vegas Cineform out.

Also, as a test, I rendered to a new track the audio and video from my project to a 1280x720 23.976fps AVI. I compared the audio tracks and the file Vegas rendered to a new track is about 1 second delayed. What in the world is going on?
TheHappyFriar wrote on 7/3/2009, 6:10 AM
Try QT PNG render... AE can read QT, can't it???

no clue why it would be RENDERING with the image of that guy vs the scientist. BUT, you didn't show us the whole TL, just a segment, so we don't know if there's anything above/below on the tracks, etc.

quantize to frames on?
dirtynbl wrote on 7/3/2009, 10:22 AM
There is nothing below or above either of those tracks.

Quantize to frames is off, but this error lasts for more than a second and so its not a matter of being in between frames...there's at least 24 messed up frames.

It also doesn't make sense that render to new track renders a shifted version of the AVI.
MPM wrote on 7/3/2009, 11:01 AM
Uncompressed is still a codec so-to-speak in Windows, & not a very good one when it comes to storing color data IMHO. Perhaps head over to & check out some of the free codecs, or at least a trial. Lots of folks like Lagarith []

If you wanted to do a quick test, open your uncompressed vid in Virtual Dub, & try a fast re-compress to Lagarith (or whatever you choose). See how that behaves. If it works for you then you could go to the extra time/trouble re-rendering in AE directly to Lagarith or whatever.
musicvid10 wrote on 7/3/2009, 3:20 PM
"I don't own any codecs that work rendering out of After Effects."

Well then, bring your uncompressed AVI back into Vegas and immediately render out another Cineform intermediate. Then do your work on that in the Vegas timeline. You'll be much happier you did! The second render back to CF is very fast and won't cause you any problems at all.
dirtynbl wrote on 7/5/2009, 8:16 PM
I think the problem is on the Vegas end of things in the first place.

The files it's rendering out are not right.

When I do a straight up render to new track and match the new video/audio up to the old video/audio, the rendered file is late by about a second...when you watch it, it seems fine, but it has to be stretching somewhere for no reason.

i've duplicated the weirdness in Vegas 7, but haven't tried in 9...maybe I'll download the trial.