Inverse Kinematics for non-humanoids

I know this isn't about Unity's I$$anonymous$$ stuff, but why not just do it in a 3d modeling program? It's simple.

Like example

(Bicep > Tricep > Hand) Drag an I$$anonymous$$ Chain from Bicep to hand, and they will be able to properly animate like they should.

That's just my 2 cents.

I have the model with bones. It's just that it isn't animating like it should.

What exactly is it doing?

If you animate it in 3d modeling program with your I$$anonymous$$ Chains it should export all the animations properly.

N1wHead: imported I$$anonymous$$ is baked-out into F$$anonymous$$. In other words, anything you import will have a locked-in animation. Not true I$$anonymous$$.

I$$anonymous$$ can be used for "realistic" movement, if you compute it per-frame in game. This allows the foot to rest on a rock, or depression and have both legs bend properly. Or the character walking properly up/down the exact slope. Or both arms bending properly for a gun aimed anywhere, at any recoil, with any type of grips.