Mask
Reference
Mode
Sculpt Mode
Tool
Toolbar ‣ Mask
Hotkey
M
Lets you select mesh parts to be unaffected by other brushes by painting vertex colors. The mask values are shown as gray-scale. I.e. the darker a masked area is, the less effect sculpting on it will have. See also the options of the 遮罩 menu.
Mask Tool
The mask brush has two modes:
Draw
Mask drawing.
Smooth Shift
Pressing Shift with the mask brush active will toggle the mask smoothing mode.