Masking

To mask out portions of the 3DGS model, use the Masking tool under the Scene tab.

Use the Cube Mask and Sphere Mask buttons to add the corresponding mask.

You can add as many masks as you need.

Once added, you can click to select the mask and move, rotate, or scale it with the widget.

By default, you can move the mask. Hold Ctrl or Cmd to rotate, and Alt or Option to scale.

Alternatively, you can use the toolbar in the bottom left of the screen.