[wizzardworks]

Stigir, The X-Plane does the animation inside ac3d and it's association would export with the file. It is a single file. I don't know what game you need to export to but I have sone insight into X-Plane that might be helpful. The ac3d object operates in the simulator and is displayed on the screen looking just as you created it in ac3d. The actual flight model is created separately from within X-Plane using the same X-Ref's that were used for the various control surfaces wings and fusalogue in ac3d. The simulator uses blade element theory on each individual mesh triangle to determine flight simulation with your model doing that representation on the screen. The ac3d model is smoother and more detailed than the flight model which is invisible. In the case of Microsoft flight simulator a different scheme is used based on look up table values to predict the models behavoir. The two simulators can't use the same flight model. In the case of another game the assignment of the X-ref (external refferences) used in annimation would be assigned to that games controls, joystick, and foot pedals.
The actual name of the x-ref is just a name used as a reference.
What the x-refs do is assign a rotation axis or translation path with end of travel angles with or without intermediate stop positions. Other references have continuous rotation or path following functions. The list of refferences are used to define and organize the individual motions.
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