http://www.physicseditor.com
I've finally got to a presentable stage of my physics editor "Scythe". It basically allows artists to assemble physical entities like vehicles, ragdolls, structures, rather than the programmers generating them programatically, which is just stupid.
I've been working hard on it for about a year, and there is still a lot I want to do with it.
Its made with Ogre, and uses Newton for the preview simulations. The idea though is that it stores to an independant physics file format which can by loaded by anyone, so its not limited to any particular rendering or physics engine.
I would be interested in any feedback, and also I am interested to know what model formats people would like added.
Its free for non-commercial use:
http://www.physicseditor.com/download/Scythe_1-08.msi
There is also some basic tutorials here:
http://www.physicseditor.com/support.shtml
A cool wobbly windmill, every piece and bar is separately attached and breakable, and the blades spin under motor power.
The windmill loaded into a game in Ogre:
A vehicle, with a cool spinning siren. Every piece and panel is separate and attached by breakable joints.
--In edit mode:
--In simulation mode: