/t5/photoshop-ecosystem-ideas/mask-density-control/idc-p/15166453#M25941Feb 20, 2025
Feb 20, 2025
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Your mask is pure white so there effectively is no mask in place for the density slider to control. Click on the mask in the layers panel and use Ctrl+I to invert it to black. Now the density control in properties will adjust the strength of that mask.
At present, Photoshop's mask density control can only fade the mask, not increase its density. Whilst that ability would be useful, what would even more useful would be the ability to add, non-destructive, curves or levels adjustment controls to the mask (separately from the layer) as can be done in other applications such as Adobe Substance 3D Painter. The example below shows a levels control applying only to a mask in that application.