Highlighted

using single RGB channel as black and white mask

New Here ,
Mar 19, 2020

Copy link to clipboard

Copied

How can I remove the blue channel from a some footage to use it as a black and white mask? So easy in Photoshop but I can't figure it out or find a tutorial for it in after effects.

Topics

How to

Views

36

Likes

Translate

Translate

Report

Report
Community Guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more

using single RGB channel as black and white mask

New Here ,
Mar 19, 2020

Copy link to clipboard

Copied

How can I remove the blue channel from a some footage to use it as a black and white mask? So easy in Photoshop but I can't figure it out or find a tutorial for it in after effects.

Topics

How to

Views

37

Likes

Translate

Translate

Report

Report
Community Guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
Adobe Community Professional ,
Mar 19, 2020

Copy link to clipboard

Copied

There are several ways to use the blue channel for a matte. Probably the easiest is to use Set Channels. 

Screenshot_2020-03-19 08.24.32_Rj5vYb.png

Here I have turned off all of the color channels and am setting the Alpha Chanel of the layer to Blue.

 

You can even point to another layer.  Let us know if that does not do it for you. There are several other ways to manipulate channels in After Effects.

Likes

Translate

Translate

Report

Report
Community Guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
Reply
Loading...
New Here ,
Mar 19, 2020

Copy link to clipboard

Copied

Wow, a reply from an Adobe Legend!

 

Thanks, that works well.

Likes

Translate

Translate

Report

Report
Community Guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
Reply
Loading...