Long Hair Physics | RBAN Long Chains | #UE5

In this video, we will see how to create simplified long hair physics simulations in Unreal Engine 5 using RBAN animation nodes. Since longer chains are more complex, we will take a look at some tips and tricks to get better results.
To get started, you'll need to create a physics asset for the hair RBANs. This involves breaking up the hair into smaller chains and setting up the physics properties for each chain. Once you have your physics asset set up, you can start setting up the parameters for the hair character physics simulation which is were the secret sauce is. Finally, you can setup collisions if you want to so that rigid bodies don't overlap.
00:00 Intro
00:28 Rigid Body Setup
07:28 Constraint Setup
10:11 Physics Asset Review
11:52 Fine-tuning
12:27 Animation & Character Blueprint Setup
14:20 Final Result
15:09 Outro
This video is part of my Unreal Engine Character Physics PLAYLIST:
kzbin.info/aero/PLh0J3NckZPo8xOZAucVvRZpg25xm-Y_HV
Check out my other channel if you are looking for tutorials in SPANISH:
kzbin.info/door/OQWEbcnQJ97PhBiLbb7Nmw
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#LongHairPhysics #RBAN #LongChains #HairSimulation #PhysicsSimulation #RBANLongChains #HairAnimation #PhysicsEngine #LongHairPhysicsTutorial #DevelopmentTips

[@ryuteam]

It looks pretty nice !

[@UnrealGems]

Thanks for the comment! Glad you liked it! 😁

[@friendlyfox2189]

I love your 3d model!!!

[@UnrealGems]

Thanks a lot! Although you should know I didn't model it, just did the shading and unreal integration. 😁

[@FF-FAN9999]

how would you go about rigging/simulating things that need to be connected on two ends in unreal? like a chain on pants for example

[@Life-Lessons101]

My Hair still clips on the body. Try many settings from the collison tab. Even made Collisions on the blueprint and still clips. Not sure what to do.

[@ajibolalaleye769]

Did you also create a body for the actual body because the physics assets don't interact between meshes

[@MorvorenGame]

im confused on the first thing thats opened? like in other tabs there are BP_Actors and anim bp and skeleton mesh but what is the tab he is in??

[@MorvorenGame]

Its A Physics Asset!!

[@longway4794]

Thank you for this one, great explanations as always. I have an idea about one more topic about physics if you interested in it. It's physics body in players hand or other places with sockets. Not much information on this one. For example player take plush toy in a hand or backpack on a back. So how to set up physics in these situations?

[@UnrealGems]

Thanks for the comment! If I understand correctly, you mean that you want physics in an object attached to a socket, I presume with no bind skin or bones. Is my assumption correct?

[@longway4794]

​@@UnrealGems Yes, exactly

[@longway4794]

Actually I think with bones would be easier. Let me explain what I meant. For example there is toy in a game world. It just existing on groung in A-pose. And after player take it, toy placing in a player hand and simulating physics. Thanks for the answer. I hope I explained clearly.

[@ajibolalaleye769]

Hi. your tutorials have been a great help. if you dont mind i wanted to ask about RBANS. i have a character with a long puncho and i want it to have some animations, the puncho has a layed down ( mesh is in a rest state) and like a glide state. when the puncho is in the rest state do i have to make two different skeletal chains as skinning it in rest state is difficult. and i just want to get a cloth effect. and whats the difference between rigid body and anim dynamics. thanks in advance

[@UnrealGems]

Hey! Thanks for the comment! The difference between rigid body and anim dynamics is that the rigid body simulation accounts for intersections with other rigid bodies and other elements that have collision in the level. Anim Dynamics has simplified physics and does not interact with other things outside of the Anim Dynamics node. It's simulation is faster but not as high quality as rigid bodies. For the rest state you do not have to skin twice, you can make it rest on the constraint limit. Like the short hair simulation tutorial. 😁

[@ajibolalaleye769]

@@UnrealGems Thanks a great deal for the explanation. Is there a way I can contact you for some advice if you dont mind

[@ajibolalaleye769]

@@UnrealGems Hi. In my case I have setup rigid bodies. But the knee and leg bodies sometimes pass through the bodies in front of the for example in a running animation. The bodies in front are normally pushed away but sometimes get split my the leg and knee bodies. Is it a case of iteration count which I can't seem to find in the project settings.Or how can I resolve this. And also are CRoss constraints referring to the constraints between chains. As projection may also be causing some issues. Thanks

[@yearight1205]

I have an odd question my friend, but would you be up for setting up a system where people could pay you to create a video covering certain aspects of Unreal Engine? I use Unreal Engine for cinematics not video games, so the information out there for filmmaking is MUCH smaller than that for video games. 90% of the time I end up spending a LARGE amount of time looking for answers and sometimes I find them, and other times I don't. If you would be interested in such an arrangement, I'd be happy for you to then post the video on your channel for others to gain knowledge from said topic.

[@UnrealGems]

Hey! I'm really happy to hear from you again! In the beginning I thought about doing this having a special tier in Patreon were you guys could make requests. The main problem is that I don't have much time until I finish my PhD. I am doing this because I like UE, in my free time. That is why I cannot do a video every single week and even with a two week release cycle the time is tight. Summing up, I don't feel I have enough time to take requests and properly cover the requested topics. That said, when I finish this series I think I will cover Sequencer and some of the things that you have asked before. Although bare in mind that I will probably take some time in August and there are still several videos left in my current series. Anyway, thanks for the support! 😀

[@yearight1205]

@@UnrealGems Well I hope you are doing well my friend. I always check back in to see what work you are up to in Unreal. Good luck finishing up the PhD and keep up the good work! =D

[@UnrealGems]

I'm doing good, hope you're doing awesome too! Comments like these make my day! Thanks!😁

[@gabocavallaro]

Hiii I´m coming back to this amazing tuto!! One question how can I simulate this in Control rig? should I have to do it this way --> kzbin.info/www/bejne/eKO4mZ17lKino80 Or should I combine my control rig with Blueprint logic as you made? muuuchas gracias! solo necesito una animacion dinamica de una cadena/collas cuando mi personaje mueva la cabeza, pero estoy usando control rig

[@Ray-bn4dc]

😋 *Promo SM*