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Posted

I don't know why my software is doing the opposite of what I was told. I thought black conceals, white reveals. Somehow it's doing the opposite, where black is revealing and white is concealing. 

Posted

Black is “revealing” the pixel layer underneath because it conceals the layer to which the mask is attached. That’s what it’s supposed to do!

Affinity Photo 2, Affinity Publisher 2, Affinity Designer 2 (latest retail versions) - desktop & iPad
Culling - FastRawViewer; Raw Developer - Capture One Pro; Asset Management - Photo Supreme
Mac Studio with M2 Max (2023); 64 GB RAM; macOS 13 (Ventura); Mac Studio Display - iPad Air 4th Gen; iPadOS 18

Posted
19 hours ago, smadell said:

Black is “revealing” the pixel layer underneath because it conceals the layer to which the mask is attached. That’s what it’s supposed to do!

I'm confused. I have a image of a shark under a black pixel layer. When I create a mask on the black pixel layer and apply the paint brush tool using the black color, it reveals the shark, but white just reapplies the black pixel layer. 

Posted

I greatly apologize. I thought the black concealed the layers under the pixel layer. I now realize it conceals the layer the mask is applied to, thus revealing what's underneath it. 

Posted

No need to apologize at all! Masks are tough to conceptualize. Here's a few suggestions. (1) If you want a cut-out photo on a background (like a shark on an otherwise black background) put the shark on top and attach the mask to the shark layer. (2) Instead of a black Pixel layer, put a black Fill Layer on the bottom instead. A Fill Layer is basically a vector object, and takes much less "overhead" to compute. Instead of putting millions of individual black pixels down there, just tell the layer to fill itself with a single color.

Here's a sample of the layer structure you might want to consider:

SharkonBlack.jpg.1c7be78a45a0cf26e15dcbd96c5a6d93.jpg

Affinity Photo 2, Affinity Publisher 2, Affinity Designer 2 (latest retail versions) - desktop & iPad
Culling - FastRawViewer; Raw Developer - Capture One Pro; Asset Management - Photo Supreme
Mac Studio with M2 Max (2023); 64 GB RAM; macOS 13 (Ventura); Mac Studio Display - iPad Air 4th Gen; iPadOS 18

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