Why does making accurate size models in Maya doesn’t result in realistic simulations?

[pouyan3d]

Why does making accurate size models in Maya doesn’t result in realistic simulations?
For example:
I created a 2700 unit(centimeter) tall building, which is 27 meters (88 feet).
It is pretty accurate for a 9 story building.
If I create simple rigid body box falling from the 9th story it comes down very very slowly.
I set the gravity to 98 units(centimeter) , which is 9.8 meters.
What an I doing wrong??
Thanks

[Anonymous]

Well, it might be for several reasons, first that comes to my mind is: have you checked the playback speed to play every frame?
That way simulation is calculated for every frame, also you can cache your simulation and after you did that you can play it at real time (24fps)
The other thing might be the mass of your rigid body object, try setting it to higher value.
I\’m not sure for the gravity but try to leave it at default value.

Hope it helps and good luck.

[zinnia]

Hello! I think the problem is pretty simpe :

On earth, an object falls at 9,8m/s.
If you are using cm as your base measurement unit it should be 980 cm/sec not 98.
(There are 100cm in 1m).

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