Question by Braindrool · Nov 17, 2014 at 01:05 AM · animation ik inverse kinematic

Inverse Kinematics for non-humanoids

My troubles here are not related to foot placement. I have found plenty of thesis papers on that. Could someone explain to me how I could use Unity's Inverse Kinematic function?

Two problems are appearing:

OnAnimatorIK() is not calling No idea how to set up more "limbs", e.g. AvatarIKGoal.leftFoot, rightFoot, leftHand, rightHand. (Non-humanoid structure for my spider)

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N1warhead · Nov 17, 2014 at 04:14 AM 0

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

Like example

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

That's just my 2 cents.

Braindrool · Nov 17, 2014 at 04:18 AM 0

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

N1warhead · Nov 17, 2014 at 04:23 AM 0

What exactly is it doing?

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

Owen-Reynolds · Nov 17, 2014 at 07:38 AM 0

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

IK 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.

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Inverse Kinematics for non-humanoids

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