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A lightbar is a 3D model with one or more lights. Each light takes a free siren slot (1 to 20) and lights up from the siren light with that number. Cars already use some slots through their own siren1 to siren20 bones, so a bar with many lights may not fit.

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Add a lightbar

1

Open the catalog

Click Add lightbar in the Lightbars section, or Add lightbar in the stage dock. The catalog shows 16 lightbars. Filter by type (Bar, Mini bar, Beacon, Module, Directional, Interior) at the top.
Add lightbar catalog with cards for each lightbar and one in 3D preview

The lightbar catalog with a Slim LED bar previewed.

2

Click a card

The lightbar lands on its mounting spot and is selected in Move. The sirens switch to Edited with the lights of the new bar on. A card that cannot fit stays disabled and shows how many slots it is short.
Car with a placed lightbar, the Move gizmo, and the lightbar in the sheet

A lightbar placed on the car with the Move gizmo.

Each light starts in the color the catalog gives it, with Flash on and an alternating pattern. A rotating light also turns Rotate on. Change all of that in the timeline.

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Place it

Select a lightbar on the stage or in the Lightbars list, then use the gizmo or type values.
  • Move, Rotate, and Scale in the dock switch the gizmo. The keys G, R, and S start the same gestures. Hold Ctrl while dragging for steps of 1 cm, 5°, or 0.05 scale. During a G, R, or S gesture, use X, Y, or Z to lock an axis, enter a value, and press Enter to confirm; Esc cancels the gesture. Ctrl+S and Ctrl+E confirm it before saving or exporting; Ctrl+Z cancels the gesture.
  • Snap rests the lightbar on the bodywork by its mounting face.
  • Snapping is on by default and turns the guides on or off while you drag. With it on, dragging from the middle slides the bar along the body. Hold Alt to release the snap at once.
  • The Pose of the selected lightbar group has Position in cm (X, Y, Z), Rotation in degrees (X, Y, Z), and Scale (X, Y, Z). Positions are in car space: X to the right, Y forward, Z up, from the vehicle root. Keep proportions is on by default and scales all three axes together.
Pose group with position, rotation, scale, Keep proportions, and Cut the mesh

The pose fields and the Cut the mesh control.

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Cut the mesh

Cut the mesh removes the part of the lightbar that passes a plane parallel to its contact face. Choose Inside the car to remove what enters the bodywork, or Outside the car to remove what sticks out. None keeps the whole model. The cut applies on the stage and in the exported model. Set the plane with Cut height in cm, measured outward from the contact face. Measure on bodywork puts the plane flush with the body under the piece.

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Duplicate, mirror, remove

The Lightbars list offers Duplicate …, Mirror … (a copy on the other side of the car), and Remove …, with the lightbar’s name in each action. Copies take free slots. With a lightbar selected and focus outside the timeline, Ctrl+D duplicates it and Delete removes it. Removing a lightbar does not shift the slots of the others.
With Changes the game model, a model that has a lightbar replaces the game car’s file for the whole server. Use New model if you do not want that.
Add lightbar is disabled until the game sources are ready and the car has opened on the stage. Wait for the sirens and siren bones to load before adding or copying a lightbar.

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Troubleshooting

The card is disabled because the car has fewer free slots than the bar has lights. Pick a bar with fewer lights, or remove another lightbar.
Same cause, shown after the click. A car has 20 slots in total.
Click Try again. If No lightbar installed appears instead, check your app installation: no catalog models were found.
The game files are still loading. Wait and try again.
Snap found no body under the lightbar. Move the bar closer to the car first.
Measure on bodywork found no body under the piece. Set Cut height in cm by hand.
This is a warning. Reposition the lightbar.
The lightbar comes from a catalog that is not installed. Click Remove in the Checker.
Remove the lightbar and add it again.
A lightbar on Changes the game model and a Texturing edit write the same file. Keep one of them.