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[Václav Šmilauer <eudoxos@xxxxxxxx>]

I just tried with scripts/test/clump.py and got no weird effects.

Running

O.bodies.appendClumped([utils.sphere((0,0,0),1),utils.sphere((0,0,2),1)])
print O.bodies[2].state.mass, O.bodies[2].state.inertia, O.bodies[2].state.pos, O.bodies[2].state.ori

gave me this with eigen:

8377.58040957
Vector3(11728.612573401895,11728.612573401895,3351.0321638291125)
Vector3(0,0,1) Quaternion((1,0,0),0)

and this with wm3:

8377.58040957
Vector3(3351.0321638291116,11728.612573401895,11728.612573401895)
Vector3(0,0,1)
Quaternion((0.57735026918962584,0.57735026918962584,-0.57735026918962584),2.0943951023931957)

so it only seems as difference in the ordering of principal axes (didn't
check by hand, but it looks so)

I should make one that I compute by hand and check it.

-- 
Clumps+Eigen problem
https://bugs.launchpad.net/bugs/577581
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Status in Yet Another Dynamic Engine: New

Bug description:
Clumps are working strangely with Eigen library. Part of them disappear, some of them behave wrongly.

It can be seen in ./examples/regular-sphere-pack and ./examples/buldozer