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N'Awlins Contrarian

Won't mask down properly

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I feel like I must be missing something basic, but I cannot get a mask onto a layer. The issue may be that a pixel layer and a mask layer are totally different things, and never the twain shall meet. If so--and I think this has to be my ignorance--then that's a terrible design flaw. Background:

I have an image where the foreground and sky need very different raw conversion to look good. Years ago in GIMP I painstakingly created a very detailed mask to combine TIFFs from the two different raw conversions. Now I want to use Affinity Photo to do the same thing, so I can work from 16-bit TIFFs in ProPhotoRGB instead (the stable version of GIMP is limited to 8 bits per channel, so ProPhoto RGB is not a good choice). So I exported from GIMP the layer mask as a TIFF. It opens fine in Affinity. I can paste it as a layer into the same file with the two raw conversions, but when I a Mask to Below, although the operation seems to work, it does not have the masking effect. I've also tried New Mask Layer followed by Paste Inside, but I can't seem to get my previously-created layer mask to function as an Affinity layer mask.

I have to believe there's a way to paste into a mask a pre-existing layer, and thereby use it to create a mask. So how do I do it? Thanks!

 

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I can't begin to tell you how many times an answer should have been just staring me in the face, except that someone else had to tell me where to look! Glad you got what you were looking for.

ps - are you from N'awlins? Spent 4 years there at Tulane. Great food, great jazz.

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