Skip to main content
A
about27tigers
Participant
April 12, 2017
Question

Trouble Exporting Video w/ Alpha Channel Into Media Encoder

  • April 12, 2017
  • 3 replies
  • 1585 views

Fellow Editors,

Need a way to streamline our keying workflow.

Currently rending/exporting clips with alpha channels in Premiere and After Effects takes too long. We need to be able to render/export in the background (through Media Encoder) so we can keep editing and hit our deadline each day; however, we can't seem to find an export setting that allows the clips to be rendered in Media Encoder with an alpha channel.

Any suggestions?

Working in Mac OS and currently exporting in CineForm and ProRes 4444 which works but we're trying to minimize the total time it takes to get the keyed footage into a timeline. The Key Plug-in in Premiere isn't working as well as we would like to roundtrip between AE and PR. Would a dynamic link be the fastest option for us, or exporting the CineForm/4444 codecs from AE?

Thanks,

Logan

This topic has been closed for replies.

3 replies

Warren Heaton
Community Expert
Warren HeatonCommunity Expert
Community Expert
April 12, 2017

Alpha Channel support is included in Adobe Media Encoder.

If you have the ProRes presets installed (you have to download and install them separately from Adobe Creative Cloud Desktop), you'd pick "Apple ProRes 4444 with alpha".  I use that one frequently.

Also, CC 2017 add an Alpha Only option (New features summary for the 2017 release of Adobe Media Encoder CC ); however, since you're using formats/CODECs that support alpha channels, you probably won't need that.

-Warren

Warren Heaton
Community Expert
Warren HeatonCommunity Expert
Community Expert
April 12, 2017

Adding the link to download page the Apple ProRes presets for Adobe Media Encoder (including the preset that supports an alpha channel):  Adobe - Adobe Media Encoder : For Macintosh

Scroll down to Add Ons.

"AME CC 2014.1 ProRes presets (Mac only)" works with CC 2014 and newer.

-Warren

M
Meg The Dog
Inspiring
April 12, 2017

we can't seem to find an export setting that allows the clips to be rendered in Media Encoder with an alpha channel.

From Premiere? Make sure the timeline is set to a transparent background:

Is your issue not getting the video with matte, or the speed of the export process?

MtD

R Neil Haugen
R Neil Haugen
Legend
April 12, 2017

This might be useful to ask in the AfterEffects forum ... as many there would work with this daily.

I do know that many of the AE users I know export full-res files after they've 'perfected' a comp and replace a comp on a PrPro timeline with the full media file as a regular working process. Past that, I hope a couple of the others here can hop in.

Neil

Everyone's mileage always varies ...
Terms & ConditionsAccessibility statement
Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices