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Deselect certain channels from a layer?

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Hi everyone,

In Photoshop I change the blending options of layer 2, in order to deselect the green and blue channels, leaving just the red. In layer 3, I deselect the red, and leave just the green and blue channels selected.

Could someone please explain how I achieve this in Affinity Photo for iPad, as I cannot seem to find out how to deselect 1 or 2 channels from a layer.

Thank you all in advance.

High-End Photographic Prints



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No channel disabling per layer???? Guess I’ll have to stay with Photoshop.

Thank you anyway, appreciated.

High-End Photographic Prints



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  • 9 months later...
  • 10 months later...
On 4/23/2019 at 3:53 PM, TooManyDemons said:

Damn, I was researching a better workflow for channel packing and stumbled upon this. I don't suppose per-layer channel work is planned in the future? It would be especially useful for texture artists.

EDIT: Nevermind, I figured out how to do this. Looks like it's possible after all. Cheers!

Would you care to share your discovery? I need to make some spec maps too :(

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