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Brushes

Nineteen brushes, from a plain pen to textured inks, all drawn by the same engine: pressure, tilt and speed shape every stroke.

Every brush making the same gesture — a pressure swell, a quick hatch and a spiral — from Sootline Hairline at the top to Marker at the bottom. Drawn by Am_sketch's own brush engine.

Picking a brush

  1. Right-click the Brush slot (twelve o'clock on the ring). Brush Properties opens beside the ring.
  2. The list on the right shows every brush with a sample stroke. Click one.

The Brush slot always gives you the brush you used last, also after a restart. The first time, that is Pen.

The brushes

Built in

Brush What it is like
Pen A hard round pen with a slight pressure taper and tapered ends — the everyday line.
Flat Pen A broad-edged calligraphy nib held at a fixed angle: the line is thick or thin depending on the direction you move, not on pressure.
Pencil Graphite with a fine built-in tooth; pressure changes both width and darkness.
Marker A felt marker. Overlapping strokes do not get darker than its opacity, so what you set is what you see.
Watercolor A soft, translucent wash with a darker core.
Brush Pen An ink brush pen: needle-sharp ends, width driven strongly by pressure.
Chalk A broad chalk or charcoal block that breaks into specks.
Sumi A sumi-e ink brush with a real brush tip and paper grain.
Dry Pen A small dry ink pen with paper grain and a little scatter.
Bristle A wide, splayed bristle rake.
Smudge A soft, smeary round brush in the current colour. (It paints; it does not drag the colours already on the screen.)

The Sootline pack

Eight sumi and ink brushes ship with Am_sketch, each with its own tip and paper grain:

Brush Size Character
Sootline Hairline 9 A liner with a steep nib angle
Sootline Contour 25 The everyday ink line
Sootline Broadstroke 38 The same nib, opened up
Sootline Spill 23 A wet, flooding line
Sootline Mortar 80 Sumi with a solid core and a bitten edge
Sootline Mortar Wide 500 The same, for washes and fills
Sootline Dry Rake 150 A splayed spatter rake
Sootline Vellum Nib 25 A round pen on vellum tooth

You can add brushes of your own — see Brush settings and Your own brushes and textures.

One colour for every brush

The brush colour belongs to the ring, not to a brush: switching from Pencil to Marker keeps your colour. Switching brush does reset the size to that brush's own size.

Size, while you draw

Do this over the screen To change
Middle-drag left / right Size (1 – 512)
Shift + middle-drag up / down Smoothing
Ctrl + middle-drag up / down Opacity ("Strength")
Alt + middle-drag up / down Hardness

The brush outline stays put and a label shows the value while you drag.

Straight lines

  • Shift + click draws a straight line from the end of your last stroke to the click. Keep clicking to draw a polyline.
  • Shift + drag keeps the stroke horizontal or vertical — whichever way you move first.

Both work with the Brush only. Changing tool or clearing the screen starts afresh.

Mouse or pen

  • With a pen, pressure and tilt come from the pen itself and the stroke follows the pen exactly.
  • With a mouse, Am_sketch smooths the stroke a little and, for pressure-sensitive brushes, simulates pressure: light as you start, heavier the longer you hold the button, lighter when you move fast. That is why a mouse stroke still tapers.

A live Pen pressure reading in Brush Properties shows what your pen is sending.

Swap to the eraser

X swaps between the Brush and the Eraser while either is the active tool. Win+Ctrl+Shift + right-drag erases without changing tools at all.

The pressure range of one Sootline brush — light, medium and full pressure — and six sizes from 10 to 40 px.