Tearing + interlace artifacts on render

corug7 wrote on 8/29/2007, 4:26 PM

A client gave me a couple BMD 10-bit Quicktime files at 720x486 and asked for DVDs of each. No problem, until I need to render my MPEGs. Most of the video is 30PsF, but some of it is 24p pulled down to 60i. When rendering out to 60i MPEG-2 (or DV for that matter), I get all sorts of tearing and/or interlacing artifacts in the 24 fps footage.

I'm pulling my hair out over this. I have tried outputting as UFF, LFF, switching field order of the timeline, setting blend or interpolate as deinterlacing methods (I'm not trying to deinterlace, however). This is an important job for me and the client does not want an analog conversion to DVD from the tape we output (which was from final cut and the tape looks fine). Any ideas? I have searched this and found similar problems but none of the solutions seem to work for me. Thanks.

Corey

Comments

GlennChan wrote on 8/29/2007, 4:33 PM

It might be that Vegas is doing a "stupid" resize.

Make sure the clip has a pixel aspect ratio of DV. (Right click the event, go into properties and then second tab).
Go into the pan/crop tool.
Width = 720
Height = 480
the Y position should be 242... you basically want to crop 2 lines from the top and 4 from the bottom.

Lemme check the right numbers.

2- 24p footage with pulldown to 60i will be interlaced of course.

corug7 wrote on 8/29/2007, 4:49 PM

Edit: Thanks Glenn. Still having trouble with the 24p/60i stuff though.

AlistairLock wrote on 8/30/2007, 4:36 AM

In the project settings try:

De-interlace method-blend.

This solved the tearing you mention when I resized a video clip by pan/crop