| handle | The handle that was dragged. |
| boundsOnClick | The raw Bounds for this instance's volume at the time the control handle was clicked. |
| newBounds | The raw Bounds for this instance's volume based on the updated handle position. |
Bounds The bounds that should be applied to this instance, with any necessary modifications applied.
A callback for when a control handle was dragged in the scene.
This method ensures that all axes always scale uniformly.