[ODE] GIMPACT with doubles

[Jon Watte (ODE)]

You'll get into pinhole problems where the meshes line up, if you try to 
do world-scale simulation with floating point meshes. There are ways 
around it (adding skirts, for example), but it's annoying -- the 
formulation using doubles is cleaner (although uses more memory, thus 
making it slower).

Cheers,

          / h+


Pierre Terdiman wrote:
> Note that the only place where doubles are actually needed is the
> world-space position of your objects. If everything else works in relative
> space (e.g. collision routines), then the extra accuracy doesn't buy you
> anything. In particular, storing the mesh vertices in doubles is usually not
> needed.
>
> - Pierre
>