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Possible interlacing problem on rendering?

Posted: Tue, 23rd May 2006, 2:39am

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Serpent

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Wow, I rendered it out and there is a line where the bottom of the animation box is in one of the elements and the whole footage shakes like mad after exporting (like the iMovie earthquake effect.) The walking animation of my actor now looks like a video from WWII where they walk all fast and stuff. I don't know what is going on, but it isn't acceptable at all as a final result.
Posted: Tue, 23rd May 2006, 3:13am

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Hendo

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Can you provide some more info please?

Firstly - which program are you using?

But also some details about your project (e.g. any particular filters, etc) along with a screenshot or even a few seconds of rendered video would probably help.
Posted: Tue, 23rd May 2006, 8:41pm

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Serpent

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Filters: Guassian Blur, 6 layers, a bunch of garbage mattes, 720 X 480 NTSC, anlge blur filter at the end, quad changes to a couple of top layers (animation), brightness and guassian blur on a shadow layer, and that's it.

You can see all of the problems I described in this small res clip.

The white line, weird walking, and shakiness is NOT in the original shot. It was on a tripod, completely still and normal looking.
Posted: Tue, 23rd May 2006, 10:12pm

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Joshua Davies

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Looks like you've got your interlacing mixed up somewhere (either in the clips or the project settings).

It also looks like your 3D rendered element (the speeder) has a white line rendered at the bottom - I've seen this several times. This would explain why it disappears when the speeder moves out of shot.

As far as I can tell so far this isn't a problem with the program. Maybe if you give us some more information on your project and video settings we can help you.
Posted: Tue, 23rd May 2006, 10:30pm

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Serpent

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Maybe you can solve the mystery from here:

I capture using iMovie right now because I need that import button to save HD space, I'm running low. So that was probably an interlaced file that I pulled straight from the Media folder that is contained in the second newest iMovie project "file" (folders.) So, I did all the stuff I needed and exported it to my desktop, hopefully interlaced (I think that's what this program exports to.) Now in QT it should be playing an OK interlaced file but it is all messed up. I opened it in FCP, iMovie, and exported for Web (the one you saw) and all of them look shaky, white lined (I guess that's in the render), bad flow, and all of the other problems I named. I never deinterlaced anything, so it should be fine.

Serpent
Posted: Wed, 24th May 2006, 12:00am

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Axeman

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Rating: +1

It may be a problem, not with de-interlacing, but with having the fields in the wrong order. Try taking the original clip, set up a new project in Clab with the fields in the opposite order, add a quick filter or two and render it out- see if the problems are still there.
Posted: Wed, 24th May 2006, 12:50am

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Serpent

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Alright, thanks, setting the fields to odd worked, but how do I apply that to my important project. It took ages to apply all of the masks and layers to.
Posted: Wed, 24th May 2006, 2:10am

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Axeman

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You can't change it in the existing project, but what you can do is create a preset for each layer, containing all the filters and all keyframes, and apply those to the layers in the new project. Kind of a pain, but it will save a lot of the work, and is currently the only work-around I know of.