I have finished my system today(needs some tweaking).
Its hard to explain, but i can give you some hints:
For every bone you want to be a part of the ragdoll model, you have to create a model(with similar sizes of the region its atached to). This model is a physik objekt an joined to other
Physikmodel bones, in the same order, the bones are connected on your model.

Then you have to update the rotation of a bone by reading the angle of the given constraint.

Oh i see i am going to confuse everyone with my way of explanation.

Play around with joints of physik models. Its the main part wink

GREETS
RACKSCHA

MY Website with news of my projects:
(for example my current
Muliplayer Bomberman,
GenesisPrecompiler for LiteC
and TileMaster, an easy to use Tile editor)
Sparetime-Development