Track layout with A & B sub-tracks?

cold ones wrote on 2/29/2012, 9:24 AM
I have a project with track layout that I've never encountered before:



A track is split into two "subtracks", marked A & B. There's also a crossfade icon (I think) between them. If you drag a clip beneath an A clip, the A clip gets hashed out where it overlaps and a small down arrow points to the B clip.

What is this feature? For the life of me, I can't create a new track that shares these attributes.

Comments

dxdy wrote on 2/29/2012, 9:29 AM
Is that 3D Stereoscopic?
cold ones wrote on 2/29/2012, 9:37 AM
That's a great question---I have no idea. I know that the source material is 2D. (Project properties have "Stereoscopic 3D Mode" set to off.

I did a quick check in the Help files for 3D---nothing I can find that looks quite like this...
Former user wrote on 2/29/2012, 9:45 AM
Right click in the Header region and select EXPAND TRACK Layers.

Dave T2
cold ones wrote on 2/29/2012, 9:50 AM
Dave T2, thanks, that's it!

I vaguely remember clicking "Expand Track Header" trying to find something that would maximize the width of a traditional track (the opposite of "Minimize All Tracks").

I can see this is a quick way to look at the true length of clips on any given track. Thanks for your help!
Former user wrote on 2/29/2012, 9:51 AM
Yeah, when you think about it, each video track in Vegas is actually two tracks. This allows you to do effx on one track as opposed to like After Effects which requires a different track for each source.

This view just shows you what is actually happening on those two tracks.

Dave T2
farss wrote on 2/29/2012, 11:42 AM
It is also the way film was edited, A Roll and B Roll.
Alternating scenes go onto the A roll and B roll with black in between.
If you wanted a crossfade you overlapped the rolls and drew a cross to denote the crossfade. You only got to see the crossfade when you got the answer print back from the lab and there was an extra charge per crossfade.
Some movies are still edited this way.

Bob.