The Build and Lines groups, plus the two Fissures in Detail, are where mass comes from — brushes that raise, press, cut and gather the surface. (Grab also lives in Build; see Grab & transforms.) Hold Ctrl with any of them to invert: builders carve, cutters raise, Pinch spreads.

Draw

Draw raises the surface outward along its own normal — the general-purpose "add material here" brush, soft and round by default. It's the brush most sculpts are mostly made of.

A soft rounded ridge made with the Draw brush
Draw — soft and rounded.

Draw Sharp & Carve

Carve cuts one sharp groove along your stroke: it's the Rake with a single tooth, a little over half as wide as the brush ring. The groove follows a smoothed direction of your stroke, so it flows around curves without kinks, and going over it again cuts it deeper. Hold Ctrl to raise a sharp ridge instead.

Draw Sharp raises a crisp V-crested seam for fine sharp detail, hair lines and stitching. The Falloff slider shapes its walls: at 0 they are a straight V, dragging left opens them into a rounded U, and dragging right curves them in to a sharper cusp. Hold Ctrl to cut it in.

One clean sharp groove following a curved stroke, cut with the Carve brush
Carve — one sharp groove that follows the stroke.

Clay

Clay lays flat-topped slabs of clay. Each dab builds toward a flat level set just above the surface under the brush: hollows fill up to that level, and everything else under the brush — a ridge or a brow included — rises by the pad's thickness, so the whole footprint builds and levels as it goes. Where strokes overlap they blend into one level, and going over an area again with a new stroke lays another slab on top. It's the workhorse for blocking form. Hold Ctrl to dig instead.

Material built up with the Clay brush
Clay — flat-topped slabs that level as they build.

Inflate & Crease

Inflate pushes vertices out along their own normals — forms fatten evenly in every direction, ideal for filling out limbs, cheeks and pillowy shapes. Inverted, it deflates.

Crease cuts a sharp V-section line, the Draw Sharp seam cut in, and pinches its sides in toward the line as it goes, so the valley tightens as it is cut — the definitive brush for fold lines, seams between forms, and anywhere two masses meet. Hold Ctrl to raise a pinched ridge instead.

Two identical drawn ridges; the lower one, run over with Inflate, is visibly fatter
Inflate — the lower ridge fattened, the upper one untouched.
A sharp fold line cut into a sphere with the Crease brush, its sides drawn in toward the line
Crease — a pinched valley for folds and seams.

Fissure 01 & Fissure 02

The fissure pair cuts crack lines. Fissure 01 slices a smooth, clean V-cut — strokes blend into one continuous cut, and a new stroke slices into the last, so cracks join up the way real ones do. Fissure 02 is its wilder sibling: a wandering, hand-drawn crack with kinks, for stylised stone and wood wear. The Jitter slider sets how wildly it wanders. Both raise a thin seam when inverted.

A clean, smooth-walled crack cut along a curved stroke with Fissure 01
Fissure 01 — clean, fusing V-cuts.
A thin crack with kinks wandering along a long stroke, made with Fissure 02
Fissure 02 — wandering, hand-drawn cracks.

Pinch

Pinch gathers the surface in toward the stroke line from both sides, tightening edges and creases without raising or sinking them. Its classic use is sharpening: run Crease to cut a fold, then Pinch along the same line to draw it tight. Hold Ctrl to spread the surface apart instead.

Two identical crease lines on a sphere, the lower one tightened by the Pinch brush
Two identical creases — the lower one tightened with Pinch.

Next: the Surface brushes that refine what these built.