Enabling Pivot Gizmos
On your FBX Import Manager actor, enable Show Pivot in the Details panel. The three Pivot Actor class slots are optional — leave one empty and the built-in gizmo is used, or assign your own subclass to change how it looks:
| Property | Used when left empty |
|---|---|
| Pivot Translation Class | BP_PivotActorTranslation, assigned by default on the supplied manager |
| Pivot Rotation Class | APivotActorRotation |
| Pivot Scale Class | APivotActorScale |
When an FBX Mesh Actor is selected (via Select Actor), the plugin spawns the gizmos at the actor and keeps them attached to it, including when the actor is moved from Blueprint.
What Each Gizmo Does
Translate Gizmo
Drag an arrow to move along one axis, a flat corner handle to move in a plane, or the centre sphere to move in the camera plane. Movement is applied to the actor as a per-frame delta, so it composes with any transform you set yourself rather than overriding it.
Rotation Gizmo
Three rings rotate the actor about its X, Y and Z axes. The cursor picks a ring by distance from the ring's circle rather than by mesh collision, so the rings never block the traces you use to select objects in the scene. Dragging sweeps the actor through the same angle the cursor sweeps around the ring.
Scale Gizmo
Drag an axis handle to scale the actor along that axis, or the centre handle to scale uniformly. Scale is clamped at a lower bound so an object cannot be collapsed to zero or inverted.
Pivot Settings
| Property on Pivot Actor | Description |
|---|---|
| Pivot Size | Scale of the gizmo in world units |
| Handle Scale Ratio | Relative size of the multi-axis plane handles |
| Sensitivity | How much mouse movement translates to world movement |
| Interp Speed | Smoothing speed when the gizmo snaps to the selected actor |
| Min Controlled Scale | Lower bound applied per axis when the scale gizmo shrinks an actor |
| Ring Radius | Rotation gizmo only. Ring radius in the ring mesh's local units, used for cursor picking. Increase or decrease it if the rings highlight away from where they are drawn. |
| Ring Pick Tolerance | Rotation gizmo only. How close the cursor must be to a ring to pick it, as a fraction of the ring radius. |
| Handle Distance | Scale gizmo only. Distance from the centre to each axis handle, and the reference length for one unit of scale. |
| Uniform Screen Distance | Scale gizmo only. Cursor travel in pixels for one unit of uniform scale from the centre handle. |