// What it does
Paints every face above (or below) a flat plane perpendicular to the chosen axis. Cyan overlay shows what would paint as you drag the threshold. A bar appears over the model — click Paint with current colour there to commit.
Plane lives under the More button on the rail now (alongside Direction) — it used to be a top-level tool.
Controls: Axis (X / Y / Z), Direction (Above / Below), and a threshold slider that moves the plane through the model.
// When to use it
- One-shot base coat. Everything below the model's mid-line gets primer; paint detail above.
- Plinth-and-figure split: bottom 5mm grey, the rest colour.
- Banding effects (paint above a line one colour, then change axis/direction to layer another).
- Colour the rim of a logo or legend by height alone.
// How to use it
- Open More on the rail → Plane. Plane and Direction now live under the More button (they used to be top-level tools).
- Pick Axis (Y for vertical) and Direction (Above or Below).
- Drag the threshold slider. Cyan overlay sweeps across the model live.
- Pick a palette colour, then click Paint with current colour on the bar over the model to commit.
- Repeat with a different threshold or direction to layer a band of colour.
// Tips
- It's bulk, not a brush. No per-stroke control; commit, undo if wrong, try again.
- Wrong up axis? If your model loaded sideways, Plane paint slices the wrong way. Either change Axis or rotate the model first (see Orient model).
- Forgot to commit? Dragging only previews; nothing paints until you click Paint with current colour on the bar over the model.