22 July 2014

Pasting into a photoshop channel/layer/alpha mask

All I want to do is paste into the channel mask of a layer, this is where GIMP has a big win.  Right click, then select create greyscale copy of layer as mask.  Yay, exactly what I want to do.

Photoshop has an all or nothing approach, reveal all or reveal none, to create an all black or all white mask, I then have to paste to the mask, but to paste to the mask I have to enable/make it visible first.

The easiest way:

Alt-Click the layer mask. (To enable direct editing of the layer mask)
Ctrl-V to paste into the layer mask.

The slightly more convoluted way:

Click on the channels list, then click on the eye next to mask layer to make it visible/editable.
Ctrl-V to paste into the layer mask.

Further, if you want to automate the paste into mask, you need to use Ctrl-Shift-V.

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