[ODE] QuickStep comparison to Tokamak - large-scale stacking

[Nguyen Binh]

Hi Ed,

EJ> Where I am -9.80665 is normal!
EJ> ;)

    ;)
    But if you apply -9.8 gravity in test_boxstack.cpp you'll make ODE
    much more unstable because such value is too large for,say, a
    0.5*0.5*0.5 box, So i you drop a box from 5 (m) into a box in the
    ground,you'll notice very deep penetration.
    So I just afraid that people use geoms like common ODE sample but
    with very high gravity(you could see in test_boxstack.cpp, gravity
    is -0.5).

    Actually, we should take special care to units in physics to avoid
    numerical problem.

-- 
Best regards,

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   Nguyen Binh
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