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Message: <blockquote data-quote="Matt McIrvin" data-source="post: 21127" data-attributes="member: 590">While I don't know how the actual physics engine works, what I imagine is that it'd detect the collision if the unperturbed path of the object would have intersected the surface since the last time step. That, in itself, wouldn't be prone to frame-rate problems.But it wouldn't be efficient to check the path against every single surface on the playfield in every time step, so for a given surface, there's probably some kind of bounding box it has to be inside to even get checked.  And if it were to fly entirely through that in between time steps, you'd have a problem.</blockquote>

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