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Quick colour wheel: colour a part without a dialog

Hold a key, move, click. The selected parts take the colour as you go.

Select one or more parts, point at the model, and hold C. A colour wheel opens at your pointer, placed so that the colour the part has now lies under it. Nothing changes until the pointer moves.

The angle
Is the hue: the colour itself, red to yellow to green to blue and round.
The distance from the middle
Is the saturation: the middle is white, and the rim is the full colour.
The scroll wheel
Sets the brightness. The percentage shows under the wheel.

The selected parts change as you move, so you see the result on the model and not on a swatch. A small strip under the wheel shows the colour it was, the colour it is now, its hex code and the brightness.

While the wheel is open the pointer is hidden over it, and a dot shows where the colour is. The selection outline and the move gizmo are put away so that they do not cover the colour, and they come back when the wheel closes. Inside the middle hole the dot stays on the edge of the hole, on the side the pointer is.

Keep it or cancel it

  • Click to keep the colour. It is one step in the undo list.
  • Let go of C or press Esc to put the old colour back.
  • A press of the right or the middle mouse button puts the old colour back too.

The key works over the view. It does not work while you are typing in a field or while a window is open. If nothing is selected, the app asks you to select a part first.

Pick how you run it.

In your browser

MeshOptimiser Web

Try the app in a tab. Nothing to install.

On your machine

MeshOptimiser

The full app. Windows and macOS.

Free
Free
Browser tab
Your computer
Files stay local
Files stay local
STEP to GLB
STEP to GLB
Clean-up tools
Clean-up tools
Part library
Part library
Folders and CLI
Folders and CLI
Claude
Claude
Works offline
Works offline

Web opens a sample gearbox first and needs a window 960 px wide. Best in Chrome: Safari on a Mac can lag.