FINAL IK - Full Body IK, Aim, Look At, FABRIK, CCD IK... [1.0 RELEASED]

I have a character which I imported. Is there a way for me to generate ragdoll like elements on it and use the Ragdoll utility, or do I have to set everything by hand?

 

Hi!
Instead of having multiple hand pose targets and doing linear interpolation between them (that you can't really edit), why not have just one target and use the Animator to animate it. You can create the animation easily in Unity with the Animation Window. Just add the Animator to the hand target, open the Animation window and create animation clips for the poses, then cross-fade between them or use a blend tree.

Hi!
Final IK doesn't have a ragdoll creator included, it is not really a ragdoll tool. But you can use Unity's own Ragdoll Wizard for now.

Cheers,
Pärtel

 

I remember seeing a scene in which there was a 1st person to 3rd person toggle. Where can I find it? Thanks.

 

Hi!

I just recently bought Final IK v1.1 from asset store. Awesome stuff!
I'm running Unity 5.2.1. Most stuff seems to work fine, but not the Grounder demo.

Whenever trying to plant the feet on the ground they freeze the character in a matrix-looking pose (see screenshot).
I got the error "Grounding layers are set to nothing. Please add a ground layer.". So i added a new layer called "ground", set the terrain to use that layer and then on the Grounder FBBIK i set the solver layer to that same corresponding layer.

Shouldn't the demos just work out the box? The Mech Spider doesn't work as well. Its legs are just flying around madly. What could be wrong here? Some mismatch of the versions?

 

I just upgraded to 1.1, and I was using FBBIK, grounder, and Aim, all updated manually. The first thing I was doing was calling OnDisable () on the components (which under the hood called initiate () on SolverManager). However, in 1.1, this won't happen, and it is a private method so I can't call it externally. What am I supposed to do to initiate disabled solvers that will be updated manually? I made Initiate public and just call that manually for now, which works fine.

 

Hi!

I broke that demo up to "Third Person Shooter" and "First Person Shooter" demos, the demo script that combined the two modes was too long to grasp and it created some confusion.

Hi!

Please try to import Final IK to an empty project. It is probably that your existing layer/collision matrix settings are different.

Hi!
You should use just

Code (CSharp):

1. ik.enabled = false;

to disable the component from updating the solver. It will initiate it allright.

Cheers,
Pärtel

 

Hi, just got this and it's been pretty tremendous so far, can't wait to experiment with a 2D pixel game!

Question- what would be the best way to rig up a Squid/Octopus? I am using the FABRIK solver for each tentacle and I have the FABRIK root script on the gameobject containing the model. It seems that the root script overrides the IK targets I have set. I would like to move the root and have the targets constrained to their endpoints until they come in contact/collide with another body, and the constraint is set to 0. I guess sticky IK limbs would best describe it, is this possible via scripting? Thanks in advance.

 

Hi!
How can I exclude some bones from FBBIK processing? I need legs be free.

 

Hey, seems like you have found a bug!

To fix it quickly, go to IKSolver.cs and change

Code (CSharp):

1. public void SetIKPosition(Vector3 position) {

to

Code (CSharp):

1. public virtual void SetIKPosition(Vector3 position) {

.

Then go to IKSolverFABRIK.cs and add this function:

Code (CSharp):

1. public override Vector3 GetIKPosition() {
2.             if (target != null) return target.position;
3.             return IKPosition;
4.         }

I will add those changes to the next version as well, thanks for the info!

Hi!
Can't exclude them from processing but you can exclude them from mapping. Just go to the legs in the FBBIK inspector and set "Mapping Weight" to 0. The legs bones will never be rotated like that.
If that's what you need.

Cheers,
Pärtel

 

Yes, I did this, but I can`t rotate them manually.

 

If you just want to rotate a leg, make sure to do it in LateUpdate. In Update Mecanim has not applied yet and will overwrite your work.

 

Partel Lang, i sent you a private message with a system that i am want to see if i can achieve with final ik, waiting your answer

 

Hi, replied in PM...

 

Hi Partel, I'm starting to learn Final IK and was following the Interaction Trigger tutorial. The only way I get it to work is by adding an interaction to the Interactions array and add the right effector. In you tutorial however you didn't do this step. Is this changed? I'm on Unity 5.2.2p1 and Final IK 1.1

Also I've noticed that the trigger demo is not working the way you've shown in the tutorial video (errors: Animator.GotoState: State could not be found) My guess is that there are changes in Unity 5.2.2p1 that make this fail?

 

Quick Question, how can i switch between different Targets?


in the AimIK one Target field?

 

Hi!

I must have cut adding the effector when editing it, anyway I see it's there in about 7:40.
I just tested the Interaction Trigger demo scene on Unity 5.2.2, tried all interactions, didn't see any errors. Could you try in a fresh import of Final IK in a new project?

Hi! You can just assign the new target to aimIK.solver.target;
That would instantaneously snap to the next target, if you want to smooth into the next target instead, you can just interpolate the target's position between the 3 positions instead.

 

do you maybe have an example how to cycle threw the targets maybe? Ideal wise always targeting the nearest?
smooth is not so important. thanks!

 

Without any smoothing:

Code (CSharp):

1. public Transform[] targets;
2.    
3.     public Transform GetClosestTarget(Transform[] targets, Transform character) {
4.         int closestIndex = -1;
5.         float closest = Mathf.Infinity;
6.        
7.         for (int i = 0; i < targets.Length; i++) {
8.             float sqrMag = Vector3.SqrMagnitude(targets[i].position - character.position);
9.            
10.             if (sqrMag < closest) {
11.                 closest = sqrMag;
12.                 closestIndex = i;
13.             }
14.         }
15.  
16.         return targets[closestIndex];
17.     }
18.  
19.     void Update() {
20.         aimIK.solver.target = GetClosestTarget(targets, character);
21.     }

 

Thanks!
just as an information if somebody wants to use this script, there is a typo:

Code (CSharp):

1. void Update() {
2.         AimIK.solver.target = GetClosestTarget(targets, character);
3.     }

and `character' does not exist in the current context.
so you have to add

Code (CSharp):

1.     public Transform character;

is that right?
no, wait, now i get a "error CS0120: An object reference is required to access non-static member `RootMotion.FinalIK.AimIK.solver'"

 

Sry, It was just a snippet so you'd get the idea, here's the full code:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using RootMotion.FinalIK;
4.  
5. public class AimClosestTarget : MonoBehaviour {
6.  
7.     public AimIK aimIK;
8.     public Transform character;
9.     public Transform[] targets;
10.    
11.     public Transform GetClosestTarget(Transform[] targets, Transform character) {
12.         int closestIndex = -1;
13.         float closest = Mathf.Infinity;
14.        
15.         for (int i = 0; i < targets.Length; i++) {
16.             float sqrMag = Vector3.SqrMagnitude(targets[i].position - character.position);
17.            
18.             if (sqrMag < closest) {
19.                 closest = sqrMag;
20.                 closestIndex = i;
21.             }
22.         }
23.        
24.         return targets[closestIndex];
25.     }
26.    
27.     void Update() {
28.         aimIK.solver.target = GetClosestTarget(targets, character);
29.     }
30. }
31.  

 

oh, sorry, i just copied it blind without thinking. my bad
but it works! thank you so much!

 

Hi Partel,
I would like to ask if you may have a sample or idea on how animate a human figure's arm/hands turning a steering wheel with final ik, do you think this would be possible with final IK? Any advice would help.
Thanks

 

Isn't there already a video showing a complete driving setup with wheel, pedals etc

 

Hi, thanks for the reply, I've tried searching but cannot find this, do you perhaps have a link for this to share?

 

I see the Interactions filled in now

Also I've tried to load Final IK into a new Unity project and there the Interaction trigger demo works fine. I think the problems in my other project is because this project is updated from Unity 4.6.8, but I'm not sure.

Anyway, thanks for helping!

 

Hi!
It's a really old one, but it's here.
Also please find the "Driving" demo scene included in the package.

Cheers,
Pärtel

 

Is there a demo for the LookAtIK?
I'm trying the get it to work and it does for a brief moment but what I want the character to look at a interaction object as long as the interaction is taking place?
For example:
As long as my character is pressing the button in, I want it to look at the button.
Or when I use the pause event on the button I want the character to keep looking until I "unpause".

 

Oh, you've found a bug

Please import this patch.
I'm not entirely happy with the lookat built-in to the Interaction System, it doesn't give you a lot of freedom, I'll give it another try at some point.
But in the meanwhile if you need more control, you can make your own custom controls for the LookAtIK component and not assign it to the InteractionSystem component. You can use this script and modify it to your specific needs:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using RootMotion;
4. using RootMotion.FinalIK;
5.  
6. public class InteractionLookAtController : MonoBehaviour {
7.  
8.     [Tooltip("Reference to the LookAtIK component (feel free to replace it with AimIK)")]public LookAtIK ik;
9.     [Tooltip("Reference to the InteractionSystem component")] public InteractionSystem interactionSystem;
10.     [Tooltip("Interpolation mode to blend in the weight with (to make it smoother)")] public InterpolationMode weightInterpolationMode = InterpolationMode.InOutCubic;
11.     [Tooltip("Time of blending in/out IK weight")] public float weightBlendTime = 0.5f;
12.     [Tooltip("The time of smooth-damping the IK target towards the interaction object")] public float targetInterpolationTime = 0.5f;
13.  
14.     private Transform lookAtTarget;
15.     private Vector3 vel;
16.  
17.     void Start() {
18.         // Making sure the InteractionSystem is not controlling the LookAtIK component
19.         interactionSystem.lookAt.ik = null;
20.  
21.         // Register to get calls from the InteractionSystem
22.         interactionSystem.OnInteractionStart += OnInteractionStart;
23.         interactionSystem.OnInteractionStop += OnInteractionStop;
24.  
25.         // Just in case you need them
26.         //interactionSystem.OnInteractionPause += OnInteractionPause;
27.         //interactionSystem.OnInteractionResume += OnInteractionResume;
28.     }
29.  
30.     // Called by the InteractionSystem when an interaction starts
31.     void OnInteractionStart(FullBodyBipedEffector effectorType, InteractionObject interactionObject) {
32.         lookAtTarget = interactionObject.lookAtTarget;
33.         StopAllCoroutines();
34.         StartCoroutine(Blend(1f));
35.     }
36.  
37.     // Called by the InteractionSystem when an interaction stops
38.     void OnInteractionStop(FullBodyBipedEffector effectorType, InteractionObject interactionObject) {
39.         lookAtTarget = null;
40.         StopAllCoroutines();
41.         StartCoroutine(Blend(0f));
42.     }
43.  
44.     // Just in case you need them
45.     //void OnInteractionPause(FullBodyBipedEffector effectorType, InteractionObject interactionObject) {}
46.     //void OnInteractionResume(FullBodyBipedEffector effectorType, InteractionObject interactionObject) {}
47.  
48.     // Update IK target position
49.     void LateUpdate() {
50.         Vector3 targetPosition = lookAtTarget != null? lookAtTarget.position: ik.solver.GetRoot().position + ik.solver.GetRoot().forward * 5f;
51.  
52.         ik.solver.IKPosition = Vector3.SmoothDamp(ik.solver.IKPosition, targetPosition, ref vel, targetInterpolationTime);
53.     }
54.  
55.     // Blend IK weight in/out
56.     private IEnumerator Blend(float weightTarget) {
57.         float weight = ik.solver.IKPositionWeight;
58.  
59.         while (weight != weightTarget) {
60.             weight = Mathf.MoveTowards(weight, weightTarget, Time.deltaTime * (1f / weightBlendTime));
61.  
62.             ik.solver.IKPositionWeight = Interp.Float(weight, weightInterpolationMode);
63.             yield return null;
64.         }
65.     }
66. }
67.  

 

Oh right, I'm using Unity 4.6, I just noticed I cannot download Final IK to that version! Has the Unity version suppored change since the early days? How can I get the latest final IK onto Unity 4.6?

 

Nevermind got it all working now , in 4.6 Thanks Partel for pointing me to the driving tutorial, just what I was looking for!

 

Thanks, I will give it a try

 

Hi! This is a really great package, very impressed.

I was wondering if there's any way to alter the built-in rotation limits in the FBBIK solver? I have a model whose arm is disappearing inside his chest, even if I put elbow effectors outside his body. Do I need to put colliders on the skeleton?

 

I need some example of this video, can anybody help me ?

 

Hi! Are you sure you have the references right in the FBBIK component? Looks like clavicle bones are used instead of the upper arm bones?

A toolset for that kind of stuff will be released any day now, watch this space.

Pärtel

 

If anyone's still wondering:



Yet more proof of this being a flagship asset for Unity. The author not only removes compile times while providing source, he also makes it a click away to get the precise help you need. This level of detail would be wonderful for Unity itself.

Essentially Partel does a better job than Unity does. Pay attention Unity.

 

@Partel: happy with the tool so far!

I've noticed that the different angle limits does not support multi-object editing. Adding [CanEditMultipleObjects] to eg. RotationLimitAngleInspector works out of the box, so I'd suggest doing that. It makes working with big chains a lot easier.

 

Hey, thanks a lot man, I just wanna close this thread now with this as the last post. I appreciate it

Hey, thanks for the feedback, I'll put it down to my todo list for the next version

Cheers,
Pärtel

 

I hear in the Puppet Thread that Final IK 1.2 is being released along side. What's in the release?

 

See the release notes, it was just accepted to the Store.
It's a minor release with some fixes/improvements, I released it now to ensure everything works well with PuppetMaster.

Cheers,
Pärtel

 

I'm trying to use Full Body Biped IK with a custom animation system that sets the rotations in Update() and also in OnMouseDrag() for some controllers, but it looks like the IK system doesn't consider anything about what rotations are in place already from these scripts (unlike what it does for mecanim/legacy animation). Even if I set the weight of the limbs to 0 on position and rotation, set the weight of the whole plugin to 0 or even set the iterations to 0, it still pushes the limbs back to the rest position instead of letting through the animation underneath. Is there some way I can set the underlying animation in a similar way to what happens when using this on top of mecanim/legacy via script?

 

Use "LateUpdate" instead of "Update". Mecanim will overwrite all your rotations between Update and LateUpdate.

 

I'm interested in getting started with Android VR development. Does your VR examples work with any HMD, such as Google Cardboard, or are they specific to Oculus only?

 

I'm not using Mecanim, the problem is that FinalIK is also overwriting/ignoring all rotations from Update, or not considering them before it's calculation. Also OnMouseDrag runs before LateUpdate and therefore is overwritten by FinalIK.

 

Hi! It is not Oculus only. The VR demos I have tested on Oculus only, but the relevant IK part in it is just parenting the head effector to the camera and that's it. So since you can parent the IK target gameobjects to whatever you need, I can't see any problems.

I see. If you uncheck "Fix Transforms", it will not force the character to the default pose in each Update. You can also just disable the IK component and update it's solver whenever you need by ik.solver.Update();

Just keep in mind that if you are not playing animation and not using Fix Transforms you should have something that overwrites the rotations of the bones each frame, otherwise IK will solve additively on top of itself.

Cheers,
Pärtel

 

Hi all!

My next asset, PuppetMaster, is finally available at the store!

I made an upgrade for Final IK users with a special price. I'm not sure why Unity merged the ratings and reviews for the 2 assets, PuppetMaster is not Final IK 2. I will look into it to see if it can be fixed.

Cheers,
Pärtel

 

Congrats, will pick up the PuppetMaster very soon!

 

Hello Partel Lang,
why did you not come to Unreal Engine 4 (UE4) and bring your wonderful tool to UE4?
There is nothing good like your Tool...
I hope the Best!
Kind regards,
halobungie

 

If this can automagically create the limb colliders needed for dynamic clothes then it's worth the upgrade price.

Making people fall down is just icing on the cupcake.

 

I'm "born and raised" in Unity, I once opened UE4 but it didn't feel right

Yes it can, but it will also create Rigidbodies and Joints which you will have to delete manually if you only need the colliders.

Cheers,
Pärtel

 

Hey all,

Just letting you know that I will have to remove the discount of PuppetMaster for Final IK users.
Because of the upgrade, the reviews and ratings are shared between the 2 packages, which is wrong and confusing for the customers. So if you think you'll need PM, get it before the next week.
A proper discount system is in the Asset Store roadmap though.

Best Regards,
Pärtel