Fileout Transparent Background

Compositing
1

Hi!

I'm working on a video with a lot of green screen, and i would like to import the keyed out material in FCP with transparent background.
How do i fileout that?

Thanks,

Une

2

Render it as a Quicktime with Animation codec. Make the color depth of the animation codec output to " Millions+". I port it then to FCP and there will be transparent places.

Otherwise render it as TIFF with Alpha channel, the import alll images in a sequence in FCP, be sure that length is exactly one frame.

3

Thanks!

Just in case somebody want to do the same thing: i didn't get it to work and tried a lot of different things...
I assumed i did something wrong in Shake, because i'm new at it, but the problem was actually FCP: it added a Shift Field-filter when dragging the clip to the timeline, causing FCP to ignore the alpha channel...

Une

4

seems like shake is rendering out the alpha (if render 16 bit) by default.
in shake, its better to give every clip alpha (turn auto alpha on if no alpha), say if your bkg got no alpha ( full frame), and your layers got alpha, then when render to fcp, the clip will have alpha of the layers. So, your bkg will have hole in it (it suppose to be full frame).
in fcp, you can set alpha to ignore to get the full frame. or to black or straight to get back the alpha

thanks