both the ball does not move once i play the animation, and everyone else sees a path line, and I dont, I followed your instructions but again got no path or no movement sigh oh btw I have actually bought that book, but Im waiting for it to arrive from Amazon, its 4-6 weeks shipping time to here and I have min 2 weeks to go. Thanks for the advice tho. Any advice on where to go for info on metaballs and trees while you mention it