How to restrict brush strokes to specific polygons (like Blender's Face Selection Masking)?

Question

Hello,I am looking for a feature in Substance 3D Painter that functions exactly like Blender's "Paint Mask (Face Selection Masking)".In Blender, I can select specific polygons and use a BRUSH to paint within those boundaries without the paint bleeding onto unselected faces (see attached Blender screenshot).  In Substance Painter, I cannot find a direct way to do this. The Geometry Mask only allows "Mesh names" selection, and the Polygon Fill tool only fills faces with solid colors rather than acting as a brush boundary.Is there a direct way to use polygon selection as a "live boundary" for the brush tool in a standard workflow?I want to confirm if this fundamental feature from Blender is simply missing in the standard Painter workflow or if I am overlooking a specific setting.Thank you.

davescm · Answer

You could use Polygon Fill to create a mask, then use brush strokes to paint within that mask (either on the mask to further refine it, as shown in the screenshot below, or on the layer itself).