From: Leo R. <le...@gm...> - 2009-08-18 21:06:35
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On Mon, Aug 17, 2009 at 7:28 PM, George<pin...@gm...> wrote: > Well, I think I found the solution. The plane defines a ground-like > object and not a paper-like infinitely thin surface as we're used to > from math. So when the top_rail is used, the simulation assumes the > ball is inside that ground object and goes crazy. Hae you thought about that the surfaces are orientable (mathematical analysis) and that the vector is different from one side and the other? that is why acts like if it is solid in one side and a surface in the other. Best, Leonardo Manuel Rocha |