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Problems with lego stop motion [ANSWER]

Posted: Sun, 6th Jan 2008, 10:58pm

Post 1 of 7

Angry Chair

Force: 1010 | Joined: 29th Dec 2007 | Posts: 58

VisionLab User FXhome Movie Maker

Gold Member

Evening

I hope someone can help me. I make stop motion films with Lego have been playing around with the demo of Vision Lab. Could I ask for you to have a look at my link below to a short demo where I've noticed a couple of things occur and would like to know how I can get round the problem...

Link: http://uk.youtube.com/watch?v=GDmUQx3-dTI

Firstly when the effects kick in I found that the saber twirling slowed down a little and the grey base plate starts to I guess fragment is the best term. Has anyone seen anything or know what could cause this...? If so could you let me know how to get round it...??

When I made the video I found that playing it back while in Vision Lab was a bit jerky and would jump some frames. I wondered if that could be the problem..!?

Many thanks for any help you can give me..

Thanks

Jay
Posted: Sun, 6th Jan 2008, 11:08pm

Post 2 of 7

Hendo

Force: 13107 | Joined: 16th Sep 2004 | Posts: 848

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User PhotoKey 3 Plug-in User FXhome Movie Maker FXpreset Maker Windows User MacOS User

FXhome Team Member

A difference in speed from your original video to what you rendered (exported) is often caused by incorrect Project Settings.

When you create a project the Project Settings window appears and asks you to select things like resolution, frame rate and whether the video is interlaced or not. Make sure these parameters exactly match the video from your camera.

As for the flickering gray lego plate, I think this is due to your keying settings. You could draw a garbage matte around the gray lego plate so that none of it will get keyed.
Posted: Sun, 6th Jan 2008, 11:24pm

Post 3 of 7

Angry Chair

Force: 1010 | Joined: 29th Dec 2007 | Posts: 58

VisionLab User FXhome Movie Maker

Gold Member

Thanks for the quick reply. When I opened the project it did also say something about 'ffdshow' Any idea what that means...?

Thanks
Posted: Mon, 7th Jan 2008, 9:11am

Post 4 of 7

Cogz

Force: 16050 | Joined: 18th Jun 2002 | Posts: 674

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FXhome Team Member

According to Wikipedia ffdshow is a media decoder and encoder, as far as I know nothing to do with VisionLab Studio so might have been installed on your system previously.

http://en.wikipedia.org/wiki/Ffdshow
Posted: Mon, 7th Jan 2008, 2:04pm

Post 5 of 7

Angry Chair

Force: 1010 | Joined: 29th Dec 2007 | Posts: 58

VisionLab User FXhome Movie Maker

Gold Member

Thanks for the reply and the link. I'll give the Garbage Matte a try as well...

The background image does infact cover the whole the screen behind the fromt image. When keying is it best to have the image only cover the actual green screen..? If so what is the best method to have it fit thegreen screen..?

Thanks
Posted: Mon, 7th Jan 2008, 8:12pm

Post 6 of 7

DavidLittlefield

Force: 1905 | Joined: 10th Oct 2006 | Posts: 469

VisionLab User VideoWrap User Windows User

Gold Member

Well, I have no idea what you just asked. But try setting your greenscreen as far back from the object as you can. It will make your key much cleaner and not have those nasty green edges. Also, the gray plate is probably reflecting the green, so putting the green screen farther away and having an overhead light should probably do the trick.
Also, your getting those green things appearing on the left side of your final composite because of the shadow from the lego man. If you put light in between your object and the greenscreen then you shouldn't have a problem with this either.
Since your working with very small subjects, it should be quite easy to set them far from the greenscreen. Hope this helped!
Posted: Mon, 7th Jan 2008, 9:33pm

Post 7 of 7

Angry Chair

Force: 1010 | Joined: 29th Dec 2007 | Posts: 58

VisionLab User FXhome Movie Maker

Gold Member

Hi David

Thanks for the reply. Yeah the lighting was not ideal...! Thanks for the tips. I'll give them a go...!

Thanks

Jay