Physics

[Alienhead]

I've recently started getting more into Ultras' Physics routines but I found myself stumped on setting Mass.

If I recall in Leadwerks, the smaller the mass value the lighter the object was..  

So if I had a box set at Mass == 1

and a player model set at mass == 20

Then one expects the player being able to push the box out of the way when he walked into it. And in Leadwerks this worked fine.

Now in Ultra things don't see to work this way.

No matter what I set the mass to on either object I get the exact same outcome.

I can set the box to mass 1 and the player to mass 100 and still the box will not budge when I walk into it.

Does Ultra handle this differently?, If so how? Or is this a bug? I don't know what to report here in fear that I may be doing it wrong in Ultra.