It´s theoretically possible, yes. But nobody´s done it, and it´s unlikely anybody will.
animated backgrounds
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i´m certain you couldn´t use the jumpgate effect - you could use an animated texture(no one has done so,yet)based on the animated textures in cityscape signs - however it would be very bad for system performance at any half-decent resolution
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Hmm... I suppose you´ll just animate the .3db file to achieve that. Though I could be dreadfully wrong.