amount translating the camera right or left (when negative)
amount rolling the camera right (positive amount) or left (negative amount) around roll axis
amount tilting the camera down (positive amount) or up (negative amount) around pitch axis
amount turning the camera right (positive amount) or left (negative amount) around yaw axis (heading)
amount translating the camera up (positive amount) or down (negative amount)
amount translating the camera forward (positive amount) or backward (negative amount)