Joshua Minor wrote: > > On Mar 18, 2008, at 9:48 AM, Chris Hager wrote: >>> >>> How do the physics models themselves compare? >> >> The only difference I noticed so far is that Box2D calculates in MKS >> (meter-kilo-seconds), and we have to do the translation to pixels by >> hand. > > I have noticed that Chipmunk never seems to settle all the way, it > stays jittery even when nothing should be moving. Box2D only gets > jittery when objects are under a lot of pressure. Also, Box2D now > supports a flag to enable continuous collision detection. This can > prevent high velocity objects from tunneling through thin objects.
The not settling thing is a problem with chipmunks elasticity settings - elements only stop moving if it is set to 0.0. Also I noticed, that Box2D with SWIG crashed on more than ~ 520 elements. - Chris Btw, I've added some graphs to [[Physic_Engines/Speed_Tests]], displaying the FPS in relation to the count of elements on a XO-B4 (test with circles and with polygons). _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel