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How do I use downloaded stock footage

Posted: Thu, 13th Nov 2008, 8:49pm

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The FE

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I would really like to download the free blood spatters from Detonation Films

http://detonationfilms.com/UnitK.htm

Do I need CLab to use these or is there some way to use them with Elab?
Posted: Thu, 13th Nov 2008, 10:39pm

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Axeman

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For explosions, fire, and that sort of thing, EffectsLab can do pretty well, but for most other compositing you're going to want to use another program. You may be able to do it right in your editor, though, depending on which one you are using. Might save you having to purchase Clab, in case funds are short. Some of their footage basically just requires changing the blending mode. Check the instructions for compositing that footage on the detonation films site, and see if your video editor is up to it.
Posted: Fri, 14th Nov 2008, 3:54am

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The FE

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Well the site mentions something about keying with a greenscreen.....
Posted: Fri, 14th Nov 2008, 7:16am

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Axeman

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SuperUser

Ah, if the footage is shot with greenscreen, then likely you'll need another app for the compositing. A few of the high-end video editors have keying abilities, but none of them offer the comprehensive toolset of CompositeLab or similar compositing applications. Frequently blood footage is shot on white, and in those cases you can possible get by with the process I mentioned earlier.

Sorry for any confusion.
Posted: Fri, 14th Nov 2008, 4:58pm

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The FE

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The footage is shot against white. How would I go about changing the blending method?
Posted: Fri, 14th Nov 2008, 8:57pm

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Axeman

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SuperUser

Check the directions on the Detonationfilms site, then check the documentation for your editing app to see if it will allow you to do that. The exact process will vary from one editor to the next, and some won't allow you to at all.
Posted: Fri, 14th Nov 2008, 8:58pm

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The FE

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Oh I thought that you did it with ELab. I'm only using iMovie right now, so I don't think i'll be able to do it.
Posted: Fri, 14th Nov 2008, 9:08pm

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Axeman

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SuperUser

You are correct. iMovie won't do it.

Another alternative that would enable you to composite it in EffectsLab is to convert the stock into an image sequence and use an image editor such as Photoshop or GIMP to create an alpha channel in the images. Then you can import it to EffectsLab and it will automatically detect the alpha channel.
Posted: Sat, 15th Nov 2008, 1:13am

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The FE

Force: 435 | Joined: 10th Apr 2007 | Posts: 580

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Sounds complicated. Are there any tutorials anywhere that I could look at?