Luminosity in a single click?

[evtonic3]

Can this method be done with Photo? In Photoshop you can select an images luminosity by going to the channels panel and CTRL clicking the RGB layer. I was going to try to do this tutorial in Photo, which I challenge others to do it BTW, but I don't know a way to do this.

 

[NotMyFault]

See https://affinity.help/photo/English.lproj/pages/Layers/LayerMasks.html

 To create a luminosity mask:

1. On the Layers panel, click on the layer's thumbnail with the ctrl and alt pressed.
2. From the Layers panel, click Mask Layer

[Ron P.]

You can also utilize the Blend Ranges to do the same as what Luminosity Masks do, but I think with more precise control, and less fiddling around.

[smadell]

 

[Chezza]

I followed the James Ritson tutorial v carefully but when I try it, despite seeing the mask once created, when I add an adjustment layer, the effect is global. The mask hasn't any impact. Where am I going wrong?

[NotMyFault]

On 10/27/2021 at 10:36 PM, Chezza said:

I followed the James Ritson tutorial v carefully but when I try it, despite seeing the mask once created, when I add an adjustment layer, the effect is global. The mask hasn't any impact. Where am I going wrong?

Welcome to the forum. A screen recording of your workflow would help us to find the issue.