Irrlicht Engine

I'm wanting to try an animation system kind of like Prince of Persia and Asassins Creed, with the fluid transisions and all that fancy stuff. I don't know where to start though. Is animation middleware hard to integrate into Irrlicht? And if not, is there anything similar to Morpheme or HumanIK that's free?
Thanks .

Assassin's Creed uses Havok Animation which is freely available.

Assassin's Creed uses Havok Animation which is freely available.

I thought it used HumanIK.

I'm wanting to try an animation system kind of like Prince of Persia and Asassins Creed, with the fluid transisions and all that fancy stuff.

Doesn't a physics engine do that? Also i believe there is a setTransition() method or something like that in irrlicht.

Perhaps it does use HumanIK. Although it uses some Havok tools, and I'm not sure where physics fits into that scheme as you could easily design the "physics" they have in that game through collision algorithms that shouldn't be that difficult to understand.