[ODE] Spring constants

[John Miles]

> > The question is how to convert spring constants to ERP and CFM values
> > ODE uses. The formulas in documentation uses a timestep value, but in
> > my project I have a variable timestep (from 0.01 to 0.1). So what value
> > should I use there?
>
> Use a fixed time step. If you're falling behind on rendering,
> step the physics several times in a row to make up for it.

Which, unfortunately, will make you fall REALLY behind on rendering. :)

-- jm