Digital Juice Compositor’s Toolkit – Removing BGs

[Dustin Alcock]

How? I right click on the track in the project bin and go to interpret footage>main but the Alpha section is all grayed out. I think this is what I need?

Thanks!

[Dustin Alcock]

Okay wow…thanks but to get the first thing out of the way, I’m new at all this. So it’s not that I “only read half” it’s that I only half understand.

I’ll check it out, thanks.

[Thad Ciechanowski]

You could also duplicate the layer and use it as a track matte.

http://www.dijitmedia.com

[Matthieu Foulet]

When you are using DJ footage, you have to use their Juicer application in order to render out the files correctly.
In the output settings of this app, you have 4 available options to render Alpha

if you render with embedded alpha, the black background will then automatically be removed inside AE.

MacPro 8Core 2.8Ghz (january2008) //
12GB OWC RAM //
NVIDIA 8800GT 512Mb //
OS X.5.5 (upgrading to X.5.6 made firefox, mail and safari unstable)

[Roland R. kahlenberg]

Use XMult to create an Alpha CHannel. Link –Xmult

Cheers
RoRK

broadcastGEMs – AEPro Volume 02 (Professional Adobe After Effects Project Files – Now Available)

[Adi Mona]

For each clip you should have a provided matte
lets just say you’ve got 0001_DElement.mov and 0001_DElement_Matte.mov

Just import both clips into AE,
drop them both into the timeline (With matte on top) and hide the Matte layer
from the effects menu go to “channels” and add “Set Matte” to the original clip
In the Effects Control window (for the original clip) set the “Take Matte From Layer” to your matte clip 0001_DElement_Matte.mov
and Finlay Set “Use For Matte” to “Luminance”.

I hope this can help.