Leg IK and Feet Rotation For Custom Characters in Unreal Engine 5 Beginner Tutorial

[@makeyourgame2210]

OMG Dude thanks you this is the best tutorial ive ever seen about IK!

[@K1NG111]

Hello Friend! Thank you for this awesome tutorial! It hepled to me to implement IK for my custom character in Unreal Engine 5.4. Much appreciated! I tried other tutorials from youtube, but only yours actually the most helpful!

[@maxwellbrengle7168]

My god, this is the fourth tutorial I've watched and your solution finally worked for me! Thank you!

[@THISISMYHANDLETODAY]

The timing of this tutorial couldn't have been any better! I followed your last tutorial (which was amazing btw) and yes, this is exactly what I wanted to implement next, but most IK tutorials I have seen only use ue5 manny - THANK YOU :)

[@muller_digital]

Supper happy you like it! 😎

[@crisppxls]

Fantastic tutorial. Managed to get my 4 legged character working with this setup, appreciate the help

[@muller_digital]

Nice work! Glad it helped!

[@svenrawandreloaded]

this works pretty well on low poly geometry but totally craps out on more complex structures like landscapes, any idea how to mitigate this? edit: NVM accidentally used - node at 14:05 and took me two days to notice. Thanks for making one of the most straight forward IK tutorials on youtube.

[@muller_digital]

Haha awesome! Be sure to also check out how to go the route of using a control rig! There is some great use cases for that

[@svenrawandreloaded]

@@muller_digital I definitely will once I need to work with some more complex models. BTW, I'm trying this again with a new skeleton which I believe is completely clean and oriented correctly, but my IK twists as soon as I add the first foot goal and only gets worse as I add the others. Any idea why? Thanks again lol. Edit: NVM the sequel: I changed the mass multiplier on the solver to 100 because I'm using a large character.

[@procrastinator24]

Great Video, Thank you so much! One thing I was wondering is why you did not expose the rotation of the goals and threw the rotation directly in there, but other than that everything was perfectly understandable :) thanks again!

[@FPChris]

At the end 22:45 ish when he is walking on flat ground it looks "off" to me. Can you disable it when Z is 0 so that the original walk anim isn't effected?

[@olliverkatana4168]

Very cool and clear tutorial. Thank's.

[@lasciviousembrace]

Could someone please tell me how to also do this with the whole body? I followed the same steps after doing the feet, but when I align the body to the floor too, the feet move all over the place.

[@rezaj.mousavi7310]

Thank you for your training, only which numbers can be changed if the amount of stairs is higher? Thank you for your attention.

[@lianna5483]

Hello there, thanks for the video. :) I can't find Atan2 in my blueprint functions. According to unreal 5.3 documentation, it is in Kismet Math library but I cannot manage how to activate this in blueprint. Could you help me with that please ?

[@deygus]

This is fantastic brother, thank you so much for sharing! I'm having an odd issue where when my character goes uphill the legs/knee is now suddenly bending backwards, any idea what setting that would be under in there? It wasn't doing that until I added this so I'm not quite sure what in here I need to look at to correct it.

[@muller_digital]

@@deygus go play around with the constraints in the ik setup and test the bend there

[@Sandyy_sandy]

thanks bro i was wondering on doing this in my game

[@paleobiome]

great tutorial, but it took me 3 days to find out how to re use the ik rig to a secondary character, the problem was that in AnimBP - EventGraph you used casting and it meant i could only be used for that single character, i'm looking to alternatives for casting now

[@FPChris]

Great tutorial.

[@adamkenny5018]

The only thing mine does now is teleport down a ledge if the fall isnt too big. Does anyone know what I did wrong? It did nothing to the feet.

[@ABentPaperclip]

curious why you are using IKRig for this when most of the newer examples seem to be using control rig? for example- the third person mannequin uses a control rig for this- is there a benefit to using one over the other?

[@muller_digital]

I find this solution a bit simpler, both work. Sometimes control rigs can be buggy with certain characters. A good control rig is definitely better in the long run id say

[@jimmyjones3200]

Hey, Sorry i have another question and this one, i cant quite figure out. When on a slope. My characters legs don't move up/down enough to counter the slopes angle. Anyone know how i can edit this? Thanks

[@jamaalsineke2405]

Lekker Bru!Shot for the tut

[@al-tayf]

Hey bro , Im finding something to fix the hands going inside the objects while ongoing animation. Is there any fix?, Im newbie and i dont know alot about ue5.. It will be so grateful for me if you show your kindness, Hoping for your response, Thanks.

[@crystalgaming5532]

This does not work for me, I also used a mixamo rig and followed the video to a T, but the only thing that works is the foot rotation

[@JerryKid72]

somehow this breaks when using the built in character movement crouch, i might have to circumvent and make my own crouch but im having trouble figuring out why it does break atm.

[@muller_digital]

Could either be something like the bone that your tracing from is moving to a different location with the crouch, make sure you make a seperate socket that you can trace from, or make sure the capsule component isnt affecting your trace. So id suggest turning hidden from game off and making the trace visible to debug😎

[@JerryKid72]

@ hm I wonder if a socket that isn't parented to the pelvis would work as the root

[@muller_digital]

@ Try it out and let us know!

[@JerryKid72]

@@muller_digital yup setting the socket to the root bone instead of the pelvis fixed it right up, neato!

[@letsplayprojektorix545]

I had the problem that the character started to fidget at a certain distance when you moved away from him. If anyone has this problem, it occurs when the next LOD level becomes active. The solution for me was to increase the "min Lod Model" in the character from 0 to 4. And the problem was solved.

[@crs11becausecrs10wastaken]

Pelvis issues, it won't offset to the lower foot and causes over exertion. :( To fix this, (an over simplification) I did a branch to compare if the left or right foot was lower than the other. If so, then offset the pelvis position by -2.

[@THISISMYHANDLETODAY]

Haha I tried using mixamo to upload the steam boat willie character from sketchfab but it was all messed up, just curious where you got that model? :) Thanks

[@muller_digital]

I got it from sketchfab aswell. I just imported into blender and removed the tail, then exported it from blender again. That export settings from my previous video ussally always work. And the tail is put back afterwards with cloth simulation. Its for an upcoming video im working on😎😎

[@THISISMYHANDLETODAY]

Aweome, you are the man! @@muller_digital

[@allalongthewatchtwer]

could you replicate this with a horse model? the pack I took it from says that it's rigged for the ik

[@jsonwakefield6284]

my guys feet will move to match the angle of surfaces but his knees will not bend, does anyone have any idea why that is?

[@jimmyjones3200]

Hello, for some reason after adding the goals. When I go to move them around to test, even the slightest of movement make my characters whole body freak out. Can anyone offer any help?

[@jimmyjones3200]

anyone else comes across the issue. Click full body IK. Then in the inspector tab, change mass multiplier to 1 instead 0.1. The problem was due to my character being imported in a different size to regular mannakins.

[@svenrawandreloaded]

@@jimmyjones3200 THANK YOU!!!! For further context I would add that it depends entirely on the size and you should play around a bit, my character was quite large so 100 worked.

[@Gravigenesis]

Я использовал вместо break vector 3f просто break vector,у меня нет такой функции и не сгибаются колени

[@tshanks3741]

Thank you!

[@SergeyBel]

I dont know what I am doing wrong but the foot does not move lower or higher nor the root nor the pelvis/hips

[@DJDeity17]

Its crazy how complicated it can be to just keep your characters feet on the GROUND!!

[@muller_digital]

Right!

[@LazyDev27]

The hip rotation doesnt work for me, it makes the feet move the body instead. It's just fiddly I guess, depends on the character. Whatever it takes for it to move how I want is what it takes I suppose. -EDIT, it works! Nice man, this would've been like pulling teeth if I did it myself, if I ever hit it big with my game you'll be receiving a mysterious check in the mail I tell you what!

[@muller_digital]

Hahaha no thats okay! You keep it! Info like this is suppose to be free and your comment helps support the channel😎 Glad you got it to work!

[@trueforgefathervulkanhesta4045]

-I don't get why my IK rig in animgraph does not change when i pick IK rig.- Okay figured. This method worked on imported monster.

[@Ababa3256]

How did you solve it?

[@trueforgefathervulkanhesta4045]

@@Ababa3256 There was something wrong picked in animgraph if i remember right.

[@bobakima3320]

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