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How do I rasterize a mask? How do I apply levels to a mask?

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I want to edit a mask with levels and curves, but I don't know how to do it in Affinity.

What's the correct procedure? I can't intuitively figure it out.

If I select the mask and press "rasterize", nothing happens.

If I select the mask and try level adjustments, the mask disappears from the viewport.

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Not really sure what you're wanting to do. In Affinity Photo, each Adjustment Layer and Live Filter Layer have their own masks. I may be wrong, but I don't believe you can rasterize a mask.

Have a look at some of the tutorials that will help you understand Adjustment layers and masks. Go HERE and scroll down to the Filters and Adjustments section.

Affinity Photo ; Affinity Photo Beta; Win10 Home Version:1903, Build: 18362.207: Intel Core i7-4770, 3.90GHz, 32GB Ram, Nvidia GTX 645, 3-Internal HDD (1 Crucial MX5000 1TB, 1-Crucial MX5000 500GB, 1-WD 1 TB), 4 External HDD

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It's possible

Go on the channel pannel click on the mask alpha and chose an option




If you select Greyscale layer, you can edit as any pixel layer :

=>You have pixel layer as a mask  

=>right click release mask  => you have the pixel layer on the top

=>After modified Filter blur, smudge tool, eraser, or ....

=> Rasterize to mask

Or mask to below

OK ? or no  Repeat the loop until you are satisfied





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