Unreal Engine 4 - Groom Wind Tutorial - UE4.26 Hair and Wind

[@Lusiogenic]

The mannequin has never looked this attractive. :)

[@MODEST500]

🤣🤣🤣🤣

[@alalmalal]

Fabio

[@Nikita-ko1sy]

thank you! I just tested it in UE5.4 with a metahuman and its default hair and it works as intended

[@plo173]

Intro* Me, oh my goodness Pantene hair! Gorgeous

[@TheIcemanModdeler]

Added wind to my character's hair, works great, thanks.

[@frellinghazmot4443]

I'm using 5.1 and the eye icons are missing from the curve tab in the WindGroomSpringSystem. At the 8:30 minute mark after I apply all the settings the custom wind system doesn't preview when I compile and save. What am I doing wrong?

[@michael_mc_donald]

Incredibly useful, thank you!

[@phloxie]

Thank you for that tutorial!

[@JanSeliv1]

It's amazing!

[@pseudopod77]

so great thank you

[@SatuberitadariKorea-d1t]

thank you my hero

[@kulverse.]

Really helpful , thanks a lot

[@JIN-TECH]

Thanks man!

[@HuanLeVuong]

You're the best!

[@gulagwarlord]

Works great, thanks! You can use Random Range Vector in the Niagara system if you don't want to draw the curve.

[@MarvelMaster]

Not sure if random vector is too jittery

[@viridian_calx]

thank you

[@Djonsing]

*On UE5.4 when I change the parameters, it starts to react to changes only after a complete project reboot*

[@Quicksymphony]

Looks good! I noticed however a conflict. Hair Groom Procedural cards crashes on ue 5.2.1 when attempting to generate them. It will mention the array index and to send a report to epic. So not sure if procedural hair groom cards works outside of moving up to 5.3/5.4

[@Insectula]

Nice.

[@jbach]

This is fantastic! Is there any way to achieve more random variation per hair strand?

[@MarvelMaster]

maybe make multiple grooms on head

[@darianagreen9082]

This tutorial saved my life!! This is soo well explained and working just fine!!! BIG THANK YOU!!! I need realistic hair for cinematics and it really changes the scene, so real! I was wondering, if I add wind to the scene, so then I can change strength of the wind directly in the details tab, right? Or its better to do it through the groom asset blueprint? I also have problem with collisions on the back, no problem with face and arms, but from the back the long hair penetrates the character back as it walks, even with very mild wind. Could you please explain what can be done and how to make custom collisions for the groom! Please, help!

[@MarvelMaster]

Nice to hear that. If we got access to a wind actors values and the grooms emitter via blueprint it would be much easier but afaik its not implemented, maybe will someday. Collision is often a problem and i am not sure if it is implemented properly. You can edit the collision in the physicsasset of your character. And research has shown that sometimes collision works better when you start your scene in tpose, means any animation or animbp disabled/disconnected. And then manually activated/assigned after begin

[@mechwolf9078]

Thanks for video. Tell me please, is it possible to extend the time line more than 5?

[@kakochka1]

Great tutorial! I have a question though. If I need a non-loopable burst of wind, how should I approach it? I created a WindPhysics as you've shown with a LoopedAge emitter for the base Z-wind animation. But at a certain time in animation, I want a burst of an X-wind. My initial thought was to create a dupe of the first WindPhysics node (with proper renaming), add it on top of a simple wind, and animate it. But then, if added on top of each other one that is higher in stack is stop working. And I'm not sure what emitter should I choose. Any tip would be appreciated!) Thanks!

[@MarvelMaster]

not sure if you can drive niagara with blueprint already if so you could activatw it on demand probably

[@7_of_1]

Thanks, just watched it and am going to try it out. Am using 4.27 now, are they any changes to know about before I start? Also, are any parameters exposed for cinematics as I’m not doing games but just cinematic. Thanks.

[@MarvelMaster]

Haven't checked since the video.

[@AleRender]

thanks for the tutorial. In Unreal 5 I do not see the tab to choose Curves in win groom physysc ...

[@MarvelMaster]

Not sure if groom is supported In ue5

[@AleRender]

@@MarvelMaster Yes. I just migrated those 2 groom settings that you create to the UE5 and it works perfectly on the same model

[@MarvelMaster]

@@AleRender cool

[@deedyago]

is there some changes to the wind simulation in unreal?? it just feels wrooong to manualy setup wind pattern...

[@MarvelMaster]

wind did not have influence on hair... not sure if with new updates it would work

[@Djonsing]

1000 likes!

[@SK-hj1xh]

Hi. I use this wind effect in my cinematic sequenser and render out using movie render Queue with antialiasing setting 64 and my hair groom assets with this physics are twitching. If 32 sample it twitches twice slowly. but if I apply only 1 sample it works well. How can I fixing setup my hair physics for cinematic

[@MarvelMaster]

Didnt even know there was antialiasing^^

[@fromfareast3070]

I have a question. How to fix the hair/fur UV in the UE4? I have fur of animal imported but the UV is all messed up.

[@MarvelMaster]

AFAIK only root uv works for coloring the hair... Blender does not support to export these... The official documentation describes how to do it with custom code in Maya.

[@xbandpixels]

If you using tools other than maya .. this root uv won't work . For non root uv support The uv maps are projected spherically by default in ue4.. I tried xgen too it didn't work well although texture fitted properly I had trouble with fur being very less in number.. . so splitting the groom into parts and repainting them spherical projection while checking in ue4 .. it's tedious process but gets the job done until ue4 gets updated.

[@vrai_]

how to replace groom physic simulation with wind only?

[@andrecaetano329]

Hello. do you know how you can control the vector variable through blueprint? I can't access the custom solver on the blueprint. if i was using a niagara system at the level it would be no problem. thanks in advance

[@MarvelMaster]

Not implemented unfortunately

[@JonCG]

did you guys try on 5.1 or 5.2?

[@MarvelMaster]

no

[@_Anton_Semenov_]

Is there any way to change direction interactively? I don't see any available "cast" functions in niagara assets to set vector value.

[@MarvelMaster]

Unfortunately there are no exposed functions for this :(

[@_Anton_Semenov_]

@@MarvelMaster So sad.

[@MarvelMaster]

@@_Anton_Semenov_ somebody should setup a feature request

[@СергейВолодин-л1л]

I can’t download your file. It’s showing like “download ~60 mb?” I press ok and then it downloading only few bites Can you upload one more time pls?

[@MarvelMaster]

have you tried another browser or vpn?

[@ddskec772]

Open this project and Fatal error .The project cannot be started. [File:Build/++UE4/Sync/Engine/Source/Runtime/Windows/D3D11RHI/Private/D3D11Util.cpp][Line: 198] Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0006 - 'HUNG') No problem for other projects. I think it's probably because the performance of the graphic board is low. My environment is Win10 i9(9900K) GeForce GT 710

[@MarvelMaster]

But you did extract it before right?

[@ddskec772]

@@MarvelMaster What to extract？

[@MarvelMaster]

@@ddskec772 the zip file... But could indeed be the gpu

[@ddskec772]

@@MarvelMaster Yes. I downloaded the HairWindTutorial project file from the summary section of this video

[@ddskec772]

@@MarvelMaster I changed the graphics board from GT 710 to RTX 2060 and it worked fine

[@davinsaputra3341]

do you know how to fix twitching physics when rendering using movie render queue? I did everything you said but it still twitches

[@MarvelMaster]

When does it twitch

[@SurferXGhost1293]

What about gravity? How can I make it so that if the character turns his head looking down, his hair falls forward as it should?

[@MarvelMaster]

enable physics?

[@SurferXGhost1293]

@@MarvelMaster Yes but it only has a wiggle movement. I need it to have gravity, like the metahuman's hair

[@SurferXGhost1293]

@@MarvelMaster Something like this video kzbin.info/www/bejne/f3-bZ5Z9mZtokKM

[@MarvelMaster]

@@SurferXGhost1293 all groom has gravity usualy or does your hair float?

[@SurferXGhost1293]

@@MarvelMaster No float but just have a wiggle. If the character turns his head looking down, the hair does not fall as it should. I need it to work just like the video in the link that I shared

[@unrealana326]

Hello my friend How can I upload more Hair for characters

[@MarvelMaster]

Upload to where?

[@SK-hj1xh]

Hi. How about created more detailed collisions for groom systems?

[@MarvelMaster]

Hm Inknow what you mean and I also did some experimenting with this a while ago and figured some neat things out. But anyways even is the collision was very solid... It broke on fast movements.

[@Jmdee]

@@MarvelMaster Great video..thanks. Have you got any tips to share to solve the collisions? I'm using UE for cinemography and the strands passing through meshes are a real problem. I've been messing about for hours and can't figure it out...any advice would be great. Thanks.

[@MarvelMaster]

@@Jmdee only tip i can give is start in tpose without any animation(bp) and activate animations/animation bp after groom has been initialized... Also look at the strand settings and try increase tip colllision size

[@Jmdee]

@@MarvelMaster Thank you...I'll revisit strand tip collision size. Glad I'm not missing something obvious!

[@MarvelMaster]

@@Jmdee also hide groom at start and unhide after animbp or animation is initialized seems to produce better results

[@artist__nirmal8023]

its not working in unreal engine 5.4

[@brianstark1906]

How do you change the direction of the wind?

[@MarvelMaster]

The curve editor has 3 curves, x y z for each direction

[@brianstark1906]

@@MarvelMaster oh, duh. Thank you!

[@UnderfundedScientist]

Keep up the great work If your willing I've got an 80 second clip of the game I'm developing that I would truly appreciate any feedback on

[@jonathanxdoe]

Unreal master race?

[@MarvelMaster]

¯\_(ツ)_/¯

[@gensoustudio6270]

how much does this hair affect performance?

[@MarvelMaster]

Depends on how much hair you use but it's quite heavy I think

[@wahyusopian9383]

this groom good for game?i mean in game may have more than 1 human character

[@MarvelMaster]

Hm, if you tweak and create the groom with performance in mind and take care of not having to many groom assets on screen at the same time i think its possible

[@ericdrob]

If you're following along and it makes your character bald, keep going and it will fix

[@SpyFr]

La tronche 😅

[@Danny2k34]

I thought this was Trump's hair from the thumbnail lmaoo