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Features · Drawover

Mask tools

DrawoverSince 1.0

Overview

A real layer mask: strokes apply in order onto an alpha channel rather than each punching a permanent hole, which is what makes erase-then-restore work.

The typical job is putting something behind something else. Lay a mountain reference over the plate, erase it across the trees, and the plate's trees come back through — the mountain now sits behind them. Nick an edge, and the restore brush paints that patch of reference back instead of forcing you to start the mask over.

How to

  1. Select the reference layer (or just click it with a mask tool).
  2. Erase reference — brush the reference away; the daily shows through.
  3. Restore reference — paint it back where you over-erased.
  4. Lasso erase / Lasso keep for fast area work.

Controls

ControlTypeWhat it does
mask-brushToolErase the reference. Size follows the width slider.
mask-restoreToolPaint the reference back in.
mask-lassoToolDraw a loop; everything inside is erased.
mask-keepToolDraw a loop; everything outside is erased.

Known edges

Masking is non-destructive and per-layer. The tools grey out until the frame has a reference image on it.

See also