IKControl Joint Constraint [Beta]

[Wyzloc]

This is nice, I would love it if it was quicker to animate using the roblox animation plugin. It would be nice if there was a setting that moved the time frame marker up by increment each time you’re finished with a frame. Maybe a keybind to move it up would be nice to see.

[donutmotion]

Thanks for the feedback, we’ll see if we can make this easier to set up, and we’re also going to be updating the documentation on this page with a more detailed explanation of how to set up constraints on a character.

In your case, to constrain the LeftElbow Motor6D, Attachment0 should be on the LeftUpperArm (which is LeftElbow.Part0) and should have the same position as LeftElbow.C0. Then Attachment1 should be on the LeftLowerArm (LeftElbow.Part1) and should have the same position as LeftElbow.C1.

Standard R15 characters have built-in attachments that match these positions which you can use as well. For the LeftElbow they’re both named “LeftElbowRigAttachment”: one on LeftUpperArm and one on the LeftLowerArm. You can make your BallSocketConstraint use these directly. Or you can add your own Attachments that are parented to the built in attachments. The benefit of adding your own attachments is you can then change their orientation however you want to control which axis the elbow will bend around.

[donutmotion]

@Lockefair

Will this support bone instances in the future?

Yes, we are planning to add support for Bone instances

@C_Corpze

Is it fast and optimized as well? Could I possibly use this with many many many characters or robot arms at the same time without it lagging?

It’s should be efficient enough to use on a large number of characters or limbs. If you run into any performance issues let us know and we will investigate.

[Hydacor]

This would be very helpful for the community!!

[SubtotalAnt8185]

More instances = less performance.

I think this design could have been executed in a better way, but I do like it. It is a hassle to have 500 lines of code just to create attachments and constraints though.

[MightyDantheman (Fate)]

@donutmotion

R15 characters already have attachments matching their Motor6D C0/C1 CFrames which you can use for this. These attachments may not be oriented the way you want for a given constraint - for example, on Rthro characters the RightElbowRigAttachment Axis is not perpendicular to the elbow. In that case, we recommend adding a nested attachment underneath the default rig attachment, which you can then orient however you need.

I’m sure it’s not a big deal and I can probably figure out how to fix it myself (I haven’t tried this yet), but will there ever be a version of R15/Rthro that comes preset for this?

I think it would be easiest if it were a drop-in replacement for developers to get things to work. Like with the issue I was having that I mentioned here:

IK Controls are now out of beta!

I’m having an issue where the IK Controller just stops working sometimes. It’s very inconsistent and doesn’t appear to be based on making any sort of changes. It just works for a few test runs, then it stops when trying again later for literally no reason… Also when it works, using the UpperArm and Hand often give unrealistic results for how the arm should bend. LowerArm and Hand works much better, but I haven’t been able to get it to work for a while now. Edit: I finally got it to work again…

[PeZsmistic]

Seems convenient to me. My characters are already using constraints in this manner for pre-baked ragdolls.

[Hexcede]

One problem I have with IKControls currently (not sure if it is relevant to this update) is that I need to upload an Animation containing all the parts I want, even if I don’t add any keyframes, otherwise it behaves like a wet noodle and seems to not work how I’d expect. I assume that constraints would help with this, but, the difference in behaviour is still concerning to me and I don’t know what would be the proper way to go about it.

Really, I want the IKControl to behave the same with or without an Animation so that I don’t need to upload one for every model I want to use IKControl on, but it doesn’t seem to do that.

Is that a bug? Or is the animation somehow encoding some pose information that the IKControl is utilizing, and it’s an important piece of that? Would this beta be a proper way to use IKControls without Animations, or are Animations still required to get good results?

[SwitchedDreams]

Does IK work for R6 rigs/characters?

[thebrickplanetboy (zBrick20)]

Man I really need a full release anyways good update tho

[SubtotalAnt8185]

Yes, it does. It supports any rig that is joined with the Motor6D weld type.

[IceCreamPickels]

I think there should be an option to reset it in its original state

[C_Corpze (Corpze_TheDeadestOne)]

I haven’t tested IK with animations yet though, does it like allow for interpolation/blending between animations and IK?

[TotalIyTyler (TotallyTyler)]

There is crazy potential in this updated version

[Empereans (Emper)]

No way! Now I can finally fix the weird legs Footplanting in my script!

[Spraminge (Jakey)]

Amazing! This is exactly what we needed for a long time.

[Empereans (Emper)]

Does this mean the .Pole property will become deprecated in the future?

[SubtotalAnt8185]

This has nothing to do with Pole. Well, it somewhat does, but Pole still has useful functionality. If your joint bends to -45 and 90, the pole can make it bend to the 90 side instead of the 45 side.

[sg3cko]

Yes, IKControl.Weight allows that.

[Vundeq (maed_max)]

Im trying to use an IKControl to create a squid, but its over 3 parts in the chain. if i create 3 ikcontrol instances it collapses in on itself https://gyazo.com/1375447b6d277549f3974bfea3feddb0

Can this be fixed?