[ODE] casting

[Jon Watte (ODE)]

> dGeomTriMeshDataBuildXXX functions all use void ptrs to pass
> vertices, indices and normals. That doesn't sound right.

That's because, typically, you'll pass in a pointer to whatever your own 
data structure is, and a separate stride. The best representation of 
that in an API is a void* plus a size_t.

> And if it's really unavoidable, shouldn't we cast like Scott Meyers
> tells us to? dynamic_cast<> and static_cast<> is the modern way.

When you're dealing with POD types, it doesn't matter, period.

Cheers,

			/ h+