Hair at a Strand Level | Grooming your creations in Unreal Engine

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Unreal Engine

Πριν μήνα

Unreal Engine 4.26 introduced a new way of rendering hair onto characters - taking a huge step towards closing the gap between real time and film quality. In this presentation by Epic Evangelist Mario Palmero, you'll be guided through the incredibly easy process of having your groom imported, setting different kinds of groom, creating a variety of materials, binding the hair to a skeletal mesh, setting up the physics simulation, and configuring the scalability system so it will transition between a set of options, from strands to solid meshes.
Learn more about Hair and Fur and other features of Unreal Engine 4.26 here -
00:00 Intro
02:39 Credit
03:02 Hair and Fur
05:06 Requirements
05:47 Settings
08:35 Materials
13:59 Skinning
16:50 Simulation
19:45 Advanced Topics
21:42 LOD System

Артём Лузик
Артём Лузик Πριν 20 ώρες
The question is how to create groom in Maya/Max and then export to UE4?
Артём Лузик
Артём Лузик Πριν 21 ώρα
Seems like the normal map on the floor is broken. Probably green channel is flipped or something
Индиго kids
Индиго kids Πριν 6 ημέρες
How to export hair from Blender in Alembic format?
Fatty Bull
Fatty Bull Πριν 11 ημέρες
Cool. How to bind the groom to an animated file?
HeiBai Gui
HeiBai Gui Πριν 12 ημέρες
4:03 it reminds me that fox meme on the bench
Will Voss
Will Voss Πριν 23 ημέρες
uh.. you can just EXPORT hair from blender? you don't have to convert it to curves THEN export?
tehf00n Πριν 19 ημέρες
If you add a particle system, set to hair and start modelling from there, it's a straight up export as Alembic with a scaled value. BUT... you can do a curve based setup, then use HairNet (free blender plugin) to convert the curves to the particle system. I used this method to do a braid. It was cool.
Snoodledoot Πριν 24 ημέρες
I wish I could get Unreal to recognize its a groom and not just Alembic cache. Using the same process, sometimes it works, most times it doesn't. Finally getting one recognized as a groom and it crashes Unreal every time. *sigh*
tehf00n Πριν 19 ημέρες
I think your workflow might be doing something that causes this. I have done several grooms and never had an issue with anything.
Oleksandr Senyshyn
Oleksandr Senyshyn Πριν 27 ημέρες
This is a masterpiece
70d3x Πριν μήνα
Man that character is so deep in the uncanny valley for me! X/
Boris Petrov
Boris Petrov Πριν μήνα
uhm.. nvidia hairworks?
tehf00n Πριν 19 ημέρες
thats old news.
Angel Cutebxtch
Angel Cutebxtch Πριν μήνα
Thanks for a great video. Does the hair system work in UE4 on a Mac? As I have not been able to make it work on a Mac, but have been able to do it on a PC. I would really appreciate your advice on this.
Luis Eduardo Nery
Luis Eduardo Nery Πριν μήνα
Anyone knows if groom works with ray traced mirrors in 4.26?
Kodomozen Πριν μήνα
Hi ! I have a problem every time I import my alembic file my Unreal crashes , Does anyone knows how to fix that ?
Andrew Weidenhammer
Andrew Weidenhammer Πριν 7 ημέρες
Me too!
surtvalheim Πριν μήνα
Is importing Alambic required ? Can't it be used directly on meshes ?
Sean P
Sean P Πριν μήνα
Alembic is a totally different file type.
Dávid László
Dávid László Πριν μήνα
Ok i find it out that you actually have to create a binding asset in order to collide.. i mean in the editor its colliding but as soon i package my project the collision is gone ... since i highly doubt that i will get an answer from op i wonder does anybody else have the same issue??
tehf00n Πριν 19 ημέρες
You should always be binding yes.
Dávid László
Dávid László Πριν μήνα
Hi. thank You for the tutorial.. its really helpfull. I only have one problem... my hair just wont collide with my mesh. i setted up the physic asset, but its still wont work. Could that be the problem that i made the groom with maya xgen using only the sculp part of the character mesh ?
C.S Sturmer
C.S Sturmer Πριν μήνα
Use this to compete with the real fur technology from the movie Cats
Dave H
Dave H Πριν μήνα
I know epic won't care if a user writes this. Because it seems to me there not interested in performance too much. They keep making new features but the ue core imo is terrible! It crashes. It freezes. It uses way too many resources! While i run new graphic intensive games and they all run very smoothly. Ue is a dream in its current state. It is not reality! Ue user for a year
Dave H
Dave H Πριν 19 ημέρες
@tehf00n look i don't care about this anymore. Guess i have to spell it out. There's nothing wrong with my pc. It runs new games very smoothly and high frs. Last reply to this. Get a life!
tehf00n Πριν 19 ημέρες
UE user for 11 years. I think it's your computer that is the problem.
Dave H
Dave H Πριν μήνα
@Abra well only problem i have with the groom is if my player walks out of level 000 in wc. If i stay in that level nothing happens. I wonder if the groom can't be used with wc? Maybe because of render targets. I know the water guy said the ocean can't be used with wc because of render targets. But it's something epic is working on. I personally am not using the groom anymore in my project. Im happy with using a cloth hair. Off topic.. but have you heard anything about ue5?
Abra Πριν μήνα
@Dave H I'm not going to lie I have a drop of 5 to 10 fps on my computer... but it is still quite stable since it stays at 30 fps(remember that my computer is a potato compared to the current ones)... I didn't need to put it on skeletal mesh ... I didn't test it on different levels, however the map I used is a little heavy ... but no crash has happened...
Dave H
Dave H Πριν μήνα
@Abra you walked around with a groom into different levels in wc? No crash or freeze? There's 1 thing I know im not doing With my groom. Im not binding it to a skeletal mesh. I know they recommended that. Wonder if that's important
StoneApollyon Πριν μήνα
the word "Grooming" will forever have a negative meaning in my eyes sadly.
tehf00n Πριν 19 ημέρες
Take it back then. From this point, it has no other meaning but Unreal Hair Rendering. (been there, stay strong)
Lopiky Πριν μήνα
Thought the same thing. That word is ruined for me now :T
GreatWhiteBuffalo Πριν μήνα
What about to a lesser degree (nowhere near as thick) using the tech for grass?
wara wiri
wara wiri Πριν μήνα
woww this is too awesome! but i think in the future, pretty much games that crafted using unreal are mostly required a tons of the spec available in ur system, because of all this physics and graphics.. and i just confuse, why frostbite engine for example, could make amazing realistic environment games like star wars bf2, battlefield 4 and all of it are runs pretty well in core i3 nvidia gt840m and just 4 gigs of ram? (that was my laptop spec that i already tested on), and it even was from 5 years ago.. :\
Zapalniczka Kamiński
Zapalniczka Kamiński Πριν μήνα
The first Strand type engine
Unwired Project
Unwired Project Πριν μήνα
Finally someone who knows what is doing with this. My only question is: Can I start using those instead of hair cards for newgen games projects now?
tehf00n Πριν 19 ημέρες
Yes but you would use this alongside hair cards with the LOD system.
Sai Πριν μήνα
Amazing system, but the presentation was mediocre at best, being all over the place. Despite working in the editor for presentation it was barely used to show off anything, quickly just switching between many menus. The rabbit looked really strange with hair and I expected showcases, like a clean up, on that model with the techniques that mostly were only talked about while looking at the Mongoose. That one also was a great character to show off many types of groom assets at once, but the whole project felt scuffed.
tehf00n Πριν 19 ημέρες
@Sai Yeah I'd work on that presentation.
Sai Πριν 19 ημέρες
@tehf00n What a stupid comment.
tehf00n Πριν 19 ημέρες
Feel free to do your own presentation.
Влажнус Клитераускас
Влажнус Клитераускас Πριν μήνα
Glory to Tim Sweeney!
Perfect Code
Perfect Code Πριν μήνα
This is a bit disappointing. EA's Frostbite Engine's strand hair looks a lot better. Hope to see this improved a lot more than what is shown here.
Perfect Code
Perfect Code Πριν 19 ημέρες
@tehf00n Sorry, using stylized as an excuse for this looking so bad is moronic.
tehf00n Πριν 19 ημέρες
@Perfect Code did you miss the "stylised" part of the character? It's not a fucking Pantene advert mate.
Perfect Code
Perfect Code Πριν 19 ημέρες
@tehf00n No, I mean it's clearly a poor demonstration of UE's strand hair, in how good it can look when implemented well. As show here, it's very bad. Silly UE fanboy.
tehf00n Πριν 19 ημέρες
@Perfect Code No it's not. It showed you exactly what it does and how it does it. It's not meant to be an in-depth tutorial. If you wanted that, it would be a 12 hour video. This stuff has a lot to it.
Perfect Code
Perfect Code Πριν 19 ημέρες
@tehf00n Nice job commenting more than 2 weeks later. The video here is clearly a quite poor demonstration of UE's strand hair.
Nick Sullivan
Nick Sullivan Πριν μήνα
Absolutely amazing! Looking forward to seeing the environmental forces, wind, etc... Acting on the fur.
Nero Pasta
Nero Pasta Πριν μήνα
Is this project available to download?
Dave H
Dave H Πριν μήνα
I wish they'd fix groom. If my player walks out of level 000 in wc. Ue freezes. Please make the groom and ue more stable World composition and groom need to be seriously looked at!
tehf00n Πριν 19 ημέρες
Interesting im gonna test this now.
Agent Smith
Agent Smith Πριν μήνα
I saw something similar on EAs Frostbite engine youtube channel (unlisted video) about hair on FIFA 21 characters on PS5, to get detailed hair. Getting each hair strand to have movement is cool, but making them all move individually to make it look more realistic isn't as easy. One example is wind only hitting one part of the head.
Narblo Πριν μήνα
This is not a game engine anymore, it takes for ever to open a project, to build the shaders with only one material in scene, to cook a game no words... What happend to editor performance of UDK??
tehf00n Πριν 19 ημέρες
You sound like you know everything about UE4.
miroslaw Πριν μήνα
That will be good idea make moss this techique?
N N Πριν μήνα
I do not recommend this for videogames, is laggy AF
N N Πριν 19 ημέρες
@tehf00n lol you dont have idea, stfu
tehf00n Πριν 19 ημέρες
You didn't set it up right then. It's got a full LOD system. Presumably you just added 20 million hairs and thought it would run. Stick to the third person template.
Andreas Meyer
Andreas Meyer Πριν μήνα
this is awesome :D Especialy since i alrdy know to make hair in blender. Thank u so much
TheRabidgoalie Πριν μήνα
Thank you for taking the time to create this video. This is some of the information about this system that has been needed for quite some time. Could you expand on how you exported the alembic from Blender? Every time that I have tried to export a groom from Blender to UE4, the normal import window comes up. There are some hacky workarounds, like converting the Blender groom into curves if I remember correctly, but these ultimately fail once the character is animated. The groom reacts strangely, even without simulations running. So, if I had one complaint, it is that you glossed over how to export a useable groom from Blender to UE4.
TheRabidgoalie Πριν μήνα
I have just discovered a video by Marvel Master that covers how to import grooms from Blender into Unreal. Here is the link: I guess Mario Palmero must have assumed when making this video that the workflow was now common knowledge. I have tested the workflow in the linked video and it does indeed work. Thanks again to Mario for making this video. It is really helpful.
King David
King David Πριν μήνα
Unreal engine is AWESOME.
Attila Karácsonyi
Attila Karácsonyi Πριν μήνα
Thank you, this groom support is BIG! :)
Ted K
Ted K Πριν μήνα
vfxforge Πριν μήνα
the master hair shader should have all these settings build in by default instead of users having to build their own, or at least have one prebuilt and one base.
AngeIV Πριν μήνα
The LOD is amazing! Didn't know you have it optimized so much! It makes things easy to force cards based instead of strand based system based on quality settings : )
CharlyTutors Πριν μήνα
Great info. thank you =)
Guzwee Bright
Guzwee Bright Πριν μήνα
Does this mean that Nefro hair can be depicted in games?
Behram Patel
Behram Patel Πριν μήνα
thanks a ton for doing this . Cheers
Jayant Sarkar
Jayant Sarkar Πριν μήνα
Explains at best 😍😍
Coding Worm
Coding Worm Πριν μήνα
unreal is the goat of alll engines.
dougerber Πριν μήνα
i would have rather seen this on a realistic animal model
tehf00n Πριν 19 ημέρες
check the Meerkat model.
Karvalhos Πριν μήνα
Great Video! Thank you!
Free 3D channel
Free 3D channel Πριν μήνα
Really useful! Thank you! Do it more often!
James Bond
James Bond Πριν μήνα
how about cost/performance compare to hair mesh guys
tehf00n Πριν 19 ημέρες
5million strands in realtime is perfectly fine. Above that, you probably have other materials and draw calls that are building up for realism and it will exponentially slow down. But finding that renderpoint where everything runs sweet is what we do.
sanilal kuttimon
sanilal kuttimon Πριν μήνα
El Big official
El Big official Πριν μήνα
Kendel Tabosa
Kendel Tabosa Πριν μήνα
linkzero65 Πριν μήνα
Finally some documentation on this! thanks guys!
SeeS JuuJ
SeeS JuuJ Πριν μήνα
Don't let the furries see this
memo harth
memo harth Πριν μήνα
YRT Games
YRT Games Πριν μήνα
please make a Best Game like GTA 5 graphics and Missions for Mobile 🔥
Tester 1
Tester 1 Πριν μήνα
So you can make a shitty Asset Flip?
Huân Lê-Vương
Huân Lê-Vương Πριν μήνα
You should ask a studio for it instead of asking the GRpost channel of an engine.
Sanjai Reena
Sanjai Reena Πριν μήνα
Yes🙏 please
Brian Mercer Jr
Brian Mercer Jr Πριν μήνα
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