If Z is up then what is FORWARD?
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@sos usually a neutral rotation has the x axis parallel to the horizon and the y axis perpendicular to the horizon in z-up world space
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@sos usually a neutral rotation has the x axis parallel to the horizon and the y axis perpendicular to the horizon in z-up world space
@sos but really the concept of forward is ambiguous without context. in world space, Z is elevation, and XY is the ground plane with X probably running along the east/west cardinal directions and Y being north/south. presumably you'd want the camera to be able to face any direction, thus no world space direction is inherently "forward"