[ODE] Non capped cylinders

[Jon Watte (ODE)]

If you look in the code and contribs, there are several attempts, one of 
which is starting to shape up but still has problems. It turns out that 
flat-capped cylinders is a Hard Problem. (We should consider ourselves 
lucky that it's not a Really Hard Problem :-)

Barrels are easily implemented using a ccylinder conjoined with a box (I 
think the FAQ or Wiki has some mention of this) that lets it both stand 
up and roll convincingly.

Car wheels have been done as spheres, or as rays, for a very long time, 
but eventually, that'll probably be the driver for "really good 
cylinder" support.

If you have spare cycles, taking the existing cylinder, and writing test 
cases for it would be very helpful. Then deciding which cases fail, and 
why, and fixing them (while not breaking anything else) :-)

Cheers,

          / h+


Mark Fournier wrote:
> I know LSS cylinders are a lot easier and faster to calculate, but does
> anyone have code for non-capped cylinders? It seems every game out there has
> barrels, and wheels on cars are also flat ended cylinders. If the code isn't
> out there, at some point I'll have to add it, and I'm really not looking
> forward to it.
>