Faces global north.
Faces away from the camera plane, the same direction as the camera itself.
Faces in the direction the particle is moving. This direction can be modified by DirectionSpread actions, and is initially the particle's InitialDirection.
Tries to face the camera, but is limited to rotation around the global X-axis.
Seemingly identical to UnkGlobalPitch?
Tries to face the camera, but is limited to rotation around the vertical global Y-axis.
Tries to face the camera, but is limited to rotation around the global X-axis.
Seemingly identical to GlobalPitch?
Values representing different orientation modes for Model particles.