field misalignment due rendering

dxlee38 wrote on 9/25/2003, 10:37 PM

Hi All,

I've got a problem that's driving me batty. I'm editing with Vegas4 and authoring with DVADA. I have a project that's using fleid alternating 3D. So each frame has two fields that are different from one another. I'm editing the project and everything looks fine since it's non-interlaced on the computer. Once I burn it and look at it with the 3D shutterglasses certain scenes exhibit an alignment problem. The edges of things have an obnoxious stair-stepped quality. Where this happens and when seems to be somewhat random. For instance, I had a scene which showed this effect so I removed it from the front of the film and stuck it towards the end. And it worked fine. This alignment problem also occurs when I blue screen a clip but usually only one of the two clip shows the jagged edges--the other one is okay.

I believe that the problem is in the compression--in the rendering. I've tried varous settings but nothing seems to fix the problem. Since the film is 73 minutes long with AC3 sound all of it has to be compressed. The problem occurs on the first render so I can't blame DVDA--even though it may be adding to the problem later.

Any suggestions?

Thanks

Comments

johnmeyer wrote on 9/25/2003, 11:40 PM

This is neat stuff. I knew it existed, but you're the first I "know" who's doing it.

I would troubleshoot as follows.

1. Can you print it to a tape and play it correctly? The first step is to make sure what you are putting into Vegas and eventually into DVDA is good.

2. While in Vegas, can you play it to a monitor, at best quality, with no effects or anything else applied, and does it look OK?

3. If the video looks OK in steps #1 and #2, then we need to know what format you are using when you render. We need the format (MPEG-2) and the template (NTSC DVD).