Dynamic Hair Tutorial - Blender to Unreal Engine 4 Groom UE4.25
ฝัง
- เผยแพร่เมื่อ 5 ก.พ. 2025
- A NEW VERSION OF THIS VIDEO HAS BEEN RELEASED FOR UE4.26 WITH EASIER BLENDER EXPORT WORKFLOW: • NEW Dynamic Hair Tutor...
#######WARNING###### #######WARNING###### #######WARNING######
ONLY STATIC GROOM WILL WORK IN PACKAGED BUILDS WITH THIS WORKFLOW!
IF YOU ENABLE GROOM SIMULATION, PACKAGED BUILDS WILL CRASH WHEN YOU ENTER A LEVEL A NEW WORKFLOW HAS BEEN INVENTED THAT WORKS PROPERLY PLEASE CHECK THE NEW VIDEO: • NEW Dynamic Hair Tutor...
#######WARNING###### #######WARNING###### #######WARNING######
This time I am explaining the very basic workflow to get dynamic Hair from blender to Unreal Engine 4 version 4.25 groom system.
Warning: the groom system ist still experimental and you might experience crashes and freezes. Shipping is not recommened but its good for fun and animation.
Got questions or suggestions? Just comment below or join my discord:
/ discord
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Finally someone is able to make Blender hair into UE!
Jeah that was the task...took me hours to figure out ^^'
@@MarvelMaster I've been asking in official UE chats for weeks. Thanks for having the gung ho to figure it out!
@@iamisandisnt got link to thread so i can link it there?
@@MarvelMaster I don't doubt it. I've tried and was thinking i'd have to mess with they python alembic code to pull it off. You're a hero for this. Thank you!
This is "the other one" that made it, and added a tutorial. I managed to do it using her sample to work on, but this way is doing it without needing that. I will add further comments a bit later: th-cam.com/video/N-xLYm9MB-s/w-d-xo.html
This tutorial is awesome.
It was complete, easy to understand, and packed with all the information I wanted.
There was also an advanced sequel, and everything was perfectly helpful.
Thank you very much!
Would love to see a tutorial on shaping the hair. Also thanks a lot really awesome stuff.
will see if the public request is big enough
@@MarvelMaster DO IT PLEASE!
@@MarvelMaster There are hundreds of tutorials shaping hair in blender, the key is to make it work in UE4.25. I wonder whether you see this, cause it seems very complex in doc, and you just show part of it in the video.
@@zonyzhao469 Jeah I am planning to make a video about new volumetric clouds and after that how I shaped the hair
@@MarvelMaster Show us how, oh great one.
Great tutorial. Thank you very much for your time, your professionalism and for sharing your knowledge. This video was very informative 🎉👍⭐⭐⭐⭐
Thanks for this tutorial - awesome! As a general comment, there are plenty of Blender grooming tutorials out there, many good ones.
However: From what I can see there are literally hundreds of “Blender grooming” options that you can play with, and there are probably modifiers and addons that will enhance what you can do. The 100K question that we need to be answered is however, what will transfer and be useful in UE4. That is, you can easily spend hours perfecting the hair in Blender, but what will make it into UE4, and what will be lost/replaced when you start adding UE4 groom/Niagara to the equation…? (My guess would be that you should NOT spend too much time getting it perfect in Blender; UE4 will likely disregard a lot of that, replace it or even get messed up by some clever tweak… )
We need more awesome tutorials, like this one, and we need a place to share this. Is the UE4 forum the better place...?
you deserves at least 100k subscribers bro , keep up the nice work :)
Very useful - yes, a tutorial on how to comb the hair in Blender would be great!
I heard you...but it depends on how many ppl want this...so long you can look for other blender tutorials about this
we want hair in blender, yeah man!
Finally, somebody shows us how it's possible! Thanks
Would absolutely love to see more on hair! Thanks for sharing!
Awesome! Thanks MM, as usual fantastic work.
Great tutorial.I dont use blender but I usually use solidworks to design 3d in my channel
well this is not limited to blender any software that can export hair particles as alembic will work
Hi Marvel Master!
Yeah that sounds great I'll try today.
Thanks for this.
Awesome, thank you for the tutorial!
Is there a way to get around the alembic export bug if you only have a single object in your scene. I'm playing around with converting a mesh to curves, and exporting. Unreal then recognises it as a groom, but it does the crazy thing when I try to enable simulation. Appreciate any help or suggestions.
when i import hair to UE, it's showing, i think it is there but it is too small to see, because i can still see the gizmo on the view port. any solution? i did the scale when i export it
Thank you! But I'm really new, like started using UE4 and blender 2 weeks ago and don't know how much hair can I import. Or how would I do for 2 side(Top and side) hair particle. I just learned hairs in blender last night and it kept me awake whole night. A detailed tutorial would be much appreciated for newbie like me.
Amazing tutorial! Thank you so much! :)
I have a problem and maybe you can help?
I'm working in UE version 4.25.4 and can't reimport the skeletal mesh (as alembic) without the program crashing on me. I have tried deactivating "export hair & particles" but nothing seems to work. Is it the UE version? Do you have any suggestions what I could try?
I would be happy with getting even a static groom to stick to my avatar..
Super thankful for any help you could give. Thank you!
Try blender 2.9 and in rendering settings of the groom uncheck show emitter
@@MarvelMaster Thank you for your quick response!
I finally got it to work once I removed the textures in the particle settings. They did not translate to Unreal. Now it's not crashing on the "2nd import" anymore.
Although, I'm still having an issue with getting the scalp to follow the head. It follows the root but not the head/skeleton. 🤔🤔
Might be something with this specific skeleton mesh (I'm using CC3)?
@@themetas don't worry in4. 26 this should be fixed too
Hair with different shapes or hair with specific shape, please!
Thank you in advance
Godsend. Thanks for this, i'll be trying it !
Great tutorial! that workflow is abit weird like reexporting the skeletal mesh to make the hair work.. I hope you update the tutorial it things change with the workflow.
jeah if there will be a less weird way to do it I will post it ;)
at 6:55 why is it that you delete the curves and reexport the Mannequin again on top of the file in Unreal?
Legends : "It's a very nice effect" 😂😂
This was perfect thanks! Seems like such a strange system to export the fbx of the character to the location before reimporting. I'll trying that out tomorrow morning.
I spent all day but I think it works on my end. Lots of details to think about in Blender. One being that if you use multiple hairs/materials you need to bring down the number of children they have from 10/1000. I have 5 curve driven particles and brought them each down to 3/300 and now it stopped crashing. I could write a book about the landmines that could get you in this process but this video was definitely the final piece to the puzzle.
Thanks a ton for the tutorial, playing with simulated hair is a blast. Though I am wondering how I can change the hair color, since changing the material of the groom component to a [Used with Hair Strands] material does not change the hair's color. Has anyone by any chance figured out how to change the hair color?
After doing a thorough search of the Unreal forums, I finally got redirected to this resource. docs.unrealengine.com/en-US/Engine/HairRendering/QuickStart/index.html Apparently, I needed to set the [Shading Model] of the material to [Hair] as well, and now I can change my hair color! If you're stuck, read this entire link just in case you missed something.
This tutorial is really amazing!
Let me just ask one question, do you know anything about how to set root_uv in groom?
To grow hair on zebras, etc., it is necessary to set root_uv. thank you!
Not possible in Blender but you could make 2 separate groom assets
@@MarvelMaster Thank you for your reply quickly! indeed.
I think it's a good way.
Making a rainbow-colored monster seems to be difficult, but I'll give it a try anyway! Thank you!
@@キクラゲ-w1u I hope that blender will be officialy supported by UE4 someday so we can do proper groom setups
if i were to make a game with multiple npcs on screen, all with hair covering their whole body, would there be a way to make it so that the Framerate is decent? do you think this will get easier to implement with unreal 5? great video btw
Thank you very much for your tutorial.
I tried to repeat all the steps. Everything went well except when I enabled the hair physics, the hairs disappear and everything gets very slow. UE4 4.25 preview 6 blender 2.82a
I will repeat all the steps with blender 2.81
Preview6? Didnt know thats released yet...got to try myself
jeah its broken in Preview 6...god job Epic
@@MarvelMaster I hope it will be fixed in the next preview or release. Thank you again !
@@MarvelMaster Hi. Can you make tutorial an normal hair u say it on the end like in the thumbnail image because I new in ue. Thx
Why am I watching this? The 3d platforming character I'm working on is a robot!
It can have syntetic hair, you don't know where AI might go
@@cassiohenrique6815 yeah but synthetic hair is not part of the character design
@@menatrs1 but it could be ;)
@@KaBASS but it looks weird
UltraGamerPro 6 weird is good
Thanks so much for making and sharing this tutorial. It is gold! I do have one question - what's the deal with importing from Blender twice? First the hair curves and then the skeletal mesh. I'd love to know how you figured this out and what is actually happening that requires these steps.
Well only standalone curves/particles trigger the groom importer but only particles work as dynamic groom in ue4...so thats the reason for converting first to curve because if you export directly as particle the base mesh is always exported too which will not trigger the groom importer. But when already have a groom asset imported and hit reimport in ue4 it takes only the particles part of the export...thats why the second import. I found this out by trying many things for litrraly hours until i found the pattern. If there was a way to directly export the hairparticle without the mesh we wouldnt need the double import
@@MarvelMaster Thanks for the explanation. And for taking the time to figure it out! The rest of us appreciate it :) Do you think this is specific to the way Blender writes Alembics?
@@philboltt I think so...we would basically need to adjust the alembic exporter code to have a checkbox to only export particles...its not implemented yet cause its a very specific usecase I think
Hype!
Lets say you animal has 10 hair on viewport, on render time this is 100 , so when your exporting , you have to set the hair to 100 otherwise the look wont come, if its set to 100 and then u try to convert the mesh into spline..... its takes a long time and crashes. cus that is a lot ofmesh to convert to spline. is there a better work flow for this ?
CUs in general all hair workflows deoend on the render multiplier for the final look, cus it would be imposible to work with so much hiar in the viewport.
Yes there is a better workflow without converting... I am preparing the tutorial
@@MarvelMaster OMG thank you bro !!! yo u are King !!
I brought my hair from zbrush, used hairnet with the fibermesh selection. How do I attach the hair to my Mesh scalp? Really dying here. Horrible day trying to figure this mess out. When I export it as alembic, it doesn't show up in ue, although the file is imported.
Mac is not supported
@@MarvelMaster thanks for the response :) I'm on pc using blender. I can see my alembic file now, just when I drag it in scene, it's invisible. My emitter is the actual fibers, they don't extend from a scalp. I'll see what I can do.
Thanks for the tutorial man
hi , im testing maya to unreal hair is fine , but i wonder if dynamics are scale sensitive, my animal is very small , and i feel dynamics are wrong , even if touch stiffness the hair looks like a big mass dynamic , last year i used hair works and was better even if quite painful to export with some special needs , this new hair system is very easy to export even with yeti attributes but then looking and dynamics seems a bit worse?
Hm are you sure you have also multiple steps on short hair? I don't know if it's scale sensitive
@@MarvelMaster yes finally i make all character with hair inside unreal multiply by 10 the scale and dynamics are better , my maya model was really small.... so seems scale sensitive
well done
Please make another video about this topic
Since ue4.25 has released now i may do
Thank you so much!
Hello, I'm having this issue and hope you can help me : when I'm importing the groom as you did in this tut, it works fine. but when I'm trying to add children to the groom - ue4.26 crushing on second import. any idea what to do to fix it? I'm using blender 2.91 and unreal engine 4.26 (it happened in 4.25 also)
Try use the 4.26 tutorial also you should not add children to the groom but to the skeletal mesh
Hi hi its 31.12.2020 :D are you still there :D :) ? Need little help , when im trying to REIMPORT hair object from blender im just getting error
"Failed to Reimport (Groom asset)" i did anything same as you. Great Tutorial Man !
UPDATE: working, thanks ,love you
I dont Understand one thing: why those Hairs are in kinda a OPACITY 0 ... like a transparent, UNTIL i press PLAY , why parameters sholud i changed it to see those Hairs normal in VIEPORT while editing etc. Thanks.
Please check the updated video
@@MarvelMaster Yo ! i checked this video th-cam.com/video/OoFrIvRchTA/w-d-xo.html IT doesnt Help. First VIDEO is OK , the only problem i cant SEE MY HAIRS in EDIT-MODE but when i hit "Play" button they are showing normally , thats the problem, This groom tutorial is working correct for me.
@@shockerson I remember having this problem too.. But I can't remember how I solved it... Maybe restart editor
@@MarvelMaster Glad it can be solved :D i tought it more deeper problem. Anyway i know Groom from months ago, its Amazing for hairs ;) Happy new Year budie ! ;)
Hey, bin zufällig über dein Channel gekommen. Echt hilfreiche Sachen! Eine Frage: Machst du noch Witcher 3 Modding? Habe Grunderfahrung und wollte eine Gwent-Mod machen, komme nur leider nicht weiter und wollte dich fragen ob du mir helfen kannst? (English geht auch klar)
Hi...nein witcher3 modding ist zu lange her bei mir
Thank you.
I am seeing sniper ghillie suite created with this. nice tutorial thank you.
Hi Hello there. I am trying to use UE4 for hair. I have some problems. Hair cannot be affected by wind, Can't simulate wind dynamics. please help me.
I dont know if wind interaction is implemented...
@@MarvelMaster OK Fine if you have a good idea, please tell me Thanks! If you can achieve the dynamics affected by the wind, this will be a very major breakthrough
Hello, I'm exporting hair in alembic format with the Blender program. I got the same hair many times on the Ue4 program, no problem. When I tried to get the same hair again afterwards, the program suddenly started to crash. By the way, I am working at ue4 4.25. What could be the problem? I will be glad if you help
Try the tutorial for 4.26
@@MarvelMaster I tried using 4.26. I ran into the same problem as here and I used 4.25 as I couldn't find a solution. forums.unrealengine.com/unreal-engine/feedback-for-epic/1712341-no-info-on-importing-groom-hair-a-mystery How can i solve this problem?
@@hilalbeyzakara3055 then you used the wrong checkboxes
@@MarvelMaster While exporting from the Blender program;
scale: 100
frame start-end: 1-1
selected objects and visible objects ticked,
and finally the show emitter tick was off. I followed the tutorial. Is there anything wrong?
@@MarvelMaster I sent a detailed e-mail to your e-mail address I reached on Instagram. I hope you read and answer. Thank you in advance for your help.
Perhaps this is a really dumb question, but does this workflow also apply to Maya?
Better use the latest tutorial but apart from the whole blender thing you can use maya and/or its plugins
Hey, I followed the tutorial and it seems to work well in UE 4.25, but when doing the same process in 4.26 there appears to be a strange box shadow that appears on the ground occasionally, any idea what's causing this? Maybe shadow density or something? Baking the lighting and doing real-time lighting doesn't seem to work, at least I don't think.
Disable "Voxelize" checkbox in the groom settings. You'll have to find it idpn't exactly remember where it is
will this type of hair method be gpu expensive for games?
I think so
HI，I try to use blender 2.83 and 2.91 to unreal4.25/4.26,it failed.Can you update the tutorial?
What failed... Yes I am working on an updated tutorial
@@MarvelMaster I promise I did every step as your video ,but the .abc file from blender can't import to UE 4.25 or 4.26 ,it just error.I am waiting for the new tutorial,thanks!
ive been waiting for years
A question it doesn't work if I export in FBX?
Fbx will only export a static mesh
Can this work with children particles enabled?
Why not?
thanks : )
Bro is there a way of making grass in a similar way I mean making an elastic mesh with a fixed point at its base just asking
Sure..have you seen my grass video?
@@MarvelMaster actually no I got this idea by playing uncharted 4 it has some amazing foliage physics
@@MarvelMaster yes I have seen your vedio but I think we need to tweek some settings I order to make hair behave like grass
Will it be possible to export armature animations alongside the hair?
what do you mean? animate the hair in blender? Because the Hair follows every character animation ingame
Bro are you going to release those zelda environment?
well this environment is made by CryZENx as you might have notices...we are working in team atm and there will be playable demos... but as long as I am not making my own version of that environment it wont be publicy available
Hello there. thanks for the video. 4.25 previerw 6 would crash if I tried to activate simulation. In preview 7 (4.25) groom imports fine and looks good, but I can't find "turn on simulation" box to turn on.. and adding niagra componet doesn't seem to activate the simulation.
How do you activate simulation in preview 7? Are you certina hair groom simulation now works in preview 7? :)
thank you!
You restarted the editor like i said in the video?
T H A N K YO U ! maaan
when I add niagara groom system on my abc hair(long hair). It did't work. Does anyone have the same situation?
In 4.25 adding niagra manually is not requiert anymore.
Thx fo video)
Haha your icon looks like a gif^^
It's not simulating :( It's just like static mesh. Please help
Never mind, I'm just dumb lol
I waited with reply on Purpose ;>
Link's hair looks cool! What was the frame rate like with him walking? I wonder if this can be used in games in a practical way.
in editor 80fps
Can hair groom work with facial morph targets ? I mean will facial hairs follow animation if its made with morph targets ?
hm have not tried that but I read that it follows the vertex so in theory it could work...I might give it a shot
Ok can confirm now it works with morph targets :D
streamable.com/eoqo4j
@@MarvelMaster Wow, nice! Haha, what happened to him at the end :D
@@MarvelMaster That is awesome . Thank You!
Everytime I do it there is no physic tab for the hair
jeah btw when there is a physics tab you can actualy copy that and paste later if its missing
Blender freezes every time I try converting the hair mesh to curves. Anyone else having this issue?
yep I'm getting this too. Did you find a fix? I'm on Blender 2.9
@@MrJonathanwolff It just takes a very long time to process. It took for me around an 1 hour. But once it's done you have no issues.
be sure that you dont use 100 child strands in blender!
@@MarvelMaster Pretty sure I have like 50 XD
@@MarvelMaster I only used 10. I also noticed on part two of this that you didn't convert them to curves before exporting. Was that just a step skipped in the video to make it move quicker or did you actually not need to convert them?
awww yeah :)
Wait what were those two plugins? You just kinda rushed that too quickly.
Also how demanding or taxing is it when it comes to performance and is there a way to export a particle system from Blender to Unreal Engine?
The plugins are integrated into unreal...performance depends on amount of hair but is at least too bad for games...and there is not other way for the particle import.
UE4 4.25 preview 7 same files than before. Now physics work fine but I see only the selection outline, the hair is not rendering at all. May be it is my own problem. Can you check yourself ?
wait ! it is working ! I have a multicolor hair !
wait Preview7?
It worked on 4.25 preview 5 ty, but I can't make it work on 4.25 preview 6
jeah its broken in Preview 6
good it's run
is there a way to still download 4.25 preview 5?
Dont think so hope for fast final release
Does this mean you these are hair particles from Blender? There is a way to import these in UE? OwO? how?
yes exactly its hair particles and they import to unreal engine as alembic file...you will see
@@MarvelMaster I have tried to , but I have failed . Can't wait to see a proper way.
will this tutorial work with Groom in UE4.24?
in 4.24 it works but you have to add a niagra component to it...there is another tutorial on youtube about this where a dude uses cinema4d
The hair I imported into ue4 splits into two when I click "Blind Groom to Skeletal Mesh" plus it doesn't move with the mesh, any idea why?
Not working on 4.25
Why? I just tested and it still works
@@MarvelMaster Doing just like you and it is not working here. Just dont know why.Just got into your discord channel, can you share your UE file there, to see what is going on?
Here is my blend file, can you see if you can import it to UE, so I will know where is the problem: wetransfer.com/downloads/0a27eb11de4488a31e8ddb5b3591b30620200529132258/be58714ae4c484463914df5d6312110720200529132337/e4756d
UE 4.25.0 It still working
Good
I came for link
A nu it
I'm stuck in blender because converting the mesh to a curve is crashing the system. Has anybody else had this issue?
Use the new tutorial please