Use the Alignment to Path section of the 3D Path tab to set orientation behaviour.

Alignment option boxSelect how the object connected to the 3D Path node aligns to the path.

Select:	To:	Example:
Align Off	Not align the attached object to the path. In this case, the Orientation Axis box and banking controls are unavailable. This can be useful for vertical text effects.
Align to Path	Align the attached object to the 3D path. You can then select which axis is aligned to the path in the Orientation Axis box, and use the banking controls.
Look At	Point the attached object to a look-at object, such as a light. You can then select which axis is pointed to the look-at object in the Point Axis box, and use the banking controls. See Applying a Look-At Connection.

Orientation Axis boxSelect which axis is aligned to the path. Available when Align to Path is selected in the Alignment option box.

Point Axis boxSelect which axis is pointed to the attached look-at object. Available when Look At is selected in the Alignment option box.