Random Render Artifacts

gallois wrote on 12/11/2003, 11:29 PM

For some reason I've been getting weird stuttering and interlacing hash on some clips when rendering. Usually just on one or two short clips in the timeline. Last night on a satelite deadline for a network I had to get material out and it started messing up. I replaced the specific shots on the rendered file, making sure to click progressive scan in properties. This particular shot was slomo, but in the past it's been on regular speed shots. It'll get a weird jumpy look. I check all the settings making sure there's no motion blur or super sampling happening by accident.

Has anybody experienced such a thing and come up with a fix?

Comments

kameronj wrote on 12/12/2003, 9:50 AM

NOpe.

Frenchy wrote on 12/12/2003, 10:16 AM

gallois:

One question - what are you rendering to? I'm running into something similar, but on sped-up DV clips (see MC MPEG encoder thread) instead of slo-mo. Another question - why are you changing project properties to progressive? I'm assuming you're starting with interlaced DV, and the final project will be shown on TV? The source material is therefore interlaced, and the end result should be interlaced as well. Keep the project properties consistent with source material and final destination.

I've found with slomo, that I WANT a bit of motion blur AND supersampling enabled to end up with a smoother end result.

Something else you may want to try is on the problem event(s) switches (right-click-->properties), check "reduce interlace flicker", and "Force resample", although Vegas "should" resample if you have "smart resample" checked.

As I'm writing this, a third question about my problem pops into my feeble mind (not necessarily for you, but for anyone who reads this), is that with sped-up motion, (as opposed to slomo) does one WANT to enable a bit of motion blur and/or supersampling to reduce inlacing artifacts? (maybe I've answered my own question...)

Good luck

Frenchy