[Special Needs]

No, the files come into FCP as straight – I’m testing it here. I’m sorry to be such a pest. No matter what I do, if it’s masked in AE, the main RGB frame is blacked out in the rendered file. I need to find a way to render it and have the final output mask only show in the alpha channel – so if you didn’t look at the alpha channel, you wouldn’t know it was there.

Thanks!

[Special Needs]

Jeff,

Thanks but still no luck. I’m guessing that I’m missing something simple. Here’s my work:

Import Quicktime clip into AE
Place it in composition
Add Mask to the layer I just ceated
Animate mask manually (This blacks out what is outside the mask unless I set the mask blening mode to None – in which case I get an alpha channel that fills the screen – rather than where my mask is)
Add to render cue
In Custom output – RGB+Alpha, Straight (have also tried Pre-Mulit)

Do I add a copy of the clip underneath and somehow turn off it’s ability at affect the alpha channel? No matter what I try, I either get a solid alpha channel with the full clip or a blacked out clip with the correct masked alpha channel. I’ve been over the manual and many sites but I can’t seem to find the key.

Thanks!

[Special Needs]

Thanks. I tried that and I got just the alpha channel. I need the the full (non-blacked out) RGB and the animated alpha channel in one file so that I can send it to someone who will work with it in FCP. OR is there a way to take that straight alpha channel and add it to a clip in FCP? I tried using the Image Mask filter but it only uses the first frame as a static mask. I’m stumped.

Thanks!

Sean