Drawing & brush

Two engines, one preset system

Every brush is either raster, painting pixels straight onto the drawing, or vector, fitting a real editable Bézier path as you draw. A vector brush stroke is the same path clip type the pen tool edits, so afterward you can reshape it node by node exactly like a hand-drawn pen path. Both engines share one preset system, so a preset you tune once works the same way whichever engine it’s applied with.

Brush presets are account-level — they follow you across projects rather than living inside one document.

What a preset controls

• Tip — round or a custom image stamp, with hardness, roundness, angle, and whether it follows the stroke direction.
• Grain — a paper or canvas texture that can move with the stroke or stay anchored to the canvas.
• Stroke dynamics — dab spacing, a streamline (stabilizer) for smoothing shaky input, jitter, scatter, and taper at the ends of a stroke.
• Pressure, tilt & velocity — response curves for a real pen or stylus, read directly from the hardware when available.
• Rendering — blend mode, and an erase flag. An eraser in AtomCut is literally a brush preset with that flag on, not a separate tool.
• Vector-only — curve-fit tolerance, and variable stroke width driven by pressure.

Seven built-in presets ship out of the box: Hard Round, Soft Airbrush, 6B Pencil, Studio Ink, Dry Chalk, Vector Pen, and Vector Brush.

Brush Studio

Open Brush Studio from its toolbar button to tune any preset in a dedicated, Procreate-style editor. Every dynamic above is adjustable there against a live preview stroke, so you can dial in a brush by feel instead of guessing and testing on the canvas.

Selection & cleanup

A lasso takes a freeform region — pixels lift into a floating selection, and vector art is cut where you drew: filled shapes split into two closed paths along your loop, strokes into pieces. The wand picks the same kind of region by colour instead.

The eraser works on every visible layer at once when you ask it to, and knows what each one is made of: pixels rub out, outlines cut, dissolve at their pen nodes, or vanish whole — your choice, in its settings.

Drawing frame by frame? See Flipbook for how individual drawings become cells on rows across the timeline.