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[Question #707285]: Interactions between a boxes isn't 'real'


New question #707285 on Yade:

Hello there.
I can't find a functor for interactions between box-type objects. There is 'Ig2_Sphere_Sphere_ScGeom()' functor for interactions between spheres, but I don't see similar one for the boxes.
I detect the interaction between two boxes in the attached MWE , but it isn't real, so one box just fall through the other one whereas sphere's behavior is correct.
Help me please to solve this small problem. Thanks a lot.

Interaction that I found when boxes has contact:
In [19]: O.interactions[box_1, box_2].dict()
{'id1': 0,
 'id2': 1,
 'iterMadeReal': -1,
 'geom': None,
 'phys': None,
 'cellDist': Vector3i(0,0,0),
 'iterBorn': 0,
 'isReal': False}

box_1 = O.bodies.append(box((2.5,2.5,0.5), (5,5,1), fixed=True))
box_2 = O.bodies.append(box((2,2,3), (1,1,1)))
sphere = O.bodies.append(sphere((4,4,3), 1, material=FrictMat()))
O.engines = [
    InsertionSortCollider([Bo1_Sphere_Aabb(), Bo1_Box_Aabb()]),
            [Ig2_Sphere_Sphere_ScGeom(), Ig2_Box_Sphere_ScGeom()],
    NewtonIntegrator(damping=0.1, gravity=(0,0,-9.81)),

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