by Julieanne Kost

 Comments (6)

Created

October 11, 2013

To create a mask on a layer based on the transparency of another layer, in the Layers panel, select the layer that you want the mask to be added to. Then, drag the layer that you want to become the contents for the mask to the Add Mask Icon at the bottom of the Layers panel. Important: don’t click and release the mouse on the layer that you want to become the contents of the mask – clicking will select the layer, you need to drag that layer instead.

With the tree layer selected, drag the leaves layer to the mask icon.

With the tree layer selected, drag the leaves layer to the mask icon.

The transparency of the leaves layer defines the new mask.

The transparency of the leaves layer defines the new mask.

COMMENTS

  • By علي - 9:31 AM on October 11, 2013  

    thanks JK

  • By Bojan - 3:27 PM on October 11, 2013  

    Thanks, great tip. This never comes to my mind to try it out.

  • By Steve - 8:29 PM on October 11, 2013  

    Ok, I’m clueless…why would I want to do this? Can you show the final product of such an action?

  • By Dan - 7:21 AM on October 13, 2013  

    Making masks and accurate selection has been an ambition I’ve been hoping to master. I tried this with a duplicated red channel turned into a layer, and it seems to work. Aim was to get a sunset sky separated from clouds and foreground in silhouette, then enhance the sunset sky. It seems to have worked. Duplicated the layer (with mask) and Inverted the mask to see the effect.

    Still a bit unsure (and nervous?!!) but it really pays to experiment, develop, and become “au fait” with techniques.

  • By PECourtejoie - 4:21 AM on October 15, 2013  

    Wow! seems so natural compared to the CMD/CTRL+ click of the layer thumbnail, then the click on add layer mask… Thank you, Julieanne!

  • By sahel - 10:56 PM on October 24, 2013  

    after making layer transparent mask from a transparent back containing image what can i do with that.or what is this for.