TressFX 3.0 PureHair - Deus Ex Hair Rendering GDC Slides

JacqueChoi · Mar 2015

Wow!

Looks like it was actually published:

http://www.allgamesbeta.com/2015/03/deus-ex-universe-hair-rendering-slides.html

http://www.neogaf.com/forum/showthread.php?t=1011736

Download PDF:
https://www.scribd.com/document_downloads/258961012?extension=pdf&from=embed&source=embed

Bruno Afonseca · Mar 2015

Just saw it, that was great

Looking forward to seeing 3.0 in action. Thanks mate!

Blond · Mar 2015

Awesome! Nice to see technology is moving on for the handling of hair and hair sheets.

Think the same tech could be one day used for grass clumps?

Jean-Pascal · Mar 2015

Looking great!

Also, do you know if tressfx tools will be avalaible to everyone?

plastix · Mar 2015

TressFX 3.0 PureHair

Lets wait for the next itteration: TressFX 3.5 PubicHair

teaandcigarettes · Mar 2015

Next gen Jensen? Dohohohoho, I hope there is some announcement coming along. I am so asking for this.

ZacD · Mar 2015

I agree with dustinbrown, I'd love to see this integrated into a game engine or model viewer. Being able to use something like this via a plug-in with Unreal Engine or something would definitely be nice for non-production (or small team) uses.

blankslatejoe · Mar 2015

they mention at the end of the slides a free version with a free maya plugin..so it looks like they're thinking about getting it into the art community's hands...

Bek · Mar 2015

teaandcigarettes wrote: »

Next gen Jensen?

Next Jensen, clone of adam.

Dylan Brady · Mar 2015

"Alright mr Jensen Ive gone and given you a sweet fohawk with bleached tips"
"I never asked for this"

I was at that talk and it went right over my head, though loved the results. I think its worth our time as artists to be getting better at using film esque tools for hair modeling. be it Fibremesh/Hair and Fur/Ornatrix.
were getting closer to this kind of thing being a reality in games.

PhattyEwok · Mar 2015

dustinbrown wrote: »

That looks awesome, but it doesn't seem like something that would be available to artists doing personal work at home because of how much tech support it looks like it requires. I only mention it because I imagine a lot of people's first response is going to be "Great! How can I do this with my own art? I'm sick of hair cards!"

The Hair DCC tools alone are often prohibitively expensive for individuals. You would really need to be working at a studio where someone high up the food chain really wanted the best hair possible in the game. The rest of us are still stuck with hair cards. If I'm wrong, I want to know because, as cool as it is, it's difficult to get truly excited about something if it's so esoteric that it might as well be an in-house tool the rest of us will never get to use.

Isn't this tech in addition to hair cards? I thought this was a gap filler between hair cards and full blown simulation. Basicly allowing hair simulation magic on top?

MySecretOtherAccount · Mar 2015

When will the 'free' maya plugin be available I cant find info about it

Steve Schulze · Mar 2015

Fancy tech is all well and good, but will characters treat me differently based on my hair's degree of fabulousness?

xvampire · Mar 2015

dustinbrown wrote: »

The Hair DCC tools alone are often prohibitively expensive for individuals. You would really need to be working at a studio where someone high up the food chain really wanted the best hair possible in the game. The rest of us are still stuck with hair cards.

but NVIDIA providing NVidia hairworks for Unreal 4 , coming soon
https://developer.nvidia.com/content/nvidia-gameworks-increases-pace-innovation-unreal-engine-4-games

The_Distiller · Mar 2015

MySecretOtherAccount wrote: »

When will the 'free' maya plugin be available I cant find info about it

Since one slide says "coming soon" I guess it will out by April. Can't wait for it too, I hope we see a UE4 integration soon after the initial release! I mean with the source fully available it should just be a matter of time. Great move from AMD to make it all freely available!

Froyok · Mar 2015

I saw some people also working for a plugin support of Tress FX in UE4, so hopefully it will be possible to author via Maya and then directly bring the data to UE4 without any convertion. Like Apex.

JacqueChoi · Mar 2015

Heh,

I have no idea what I'm legally allowed to say or not about almost any of this, but I think I can answer a few things:

There's a few things that might be a bit confusing that I can clear up:

Authoring Tools:
You basically need anything that can make hair splines.

We authored our hair using HairFarm, but Fibermesh, Hair&Fur, or anything else would work just as well.

Basically you need cool looking spline hair.

So the PDF in layman's terms (for artists):

The additional Max/Maya proprietary tools we developed were simply to:
- Break each 'clump' of hair into their own individual chunk (defined as a 'wisp').

- We then Automatically create a chain of bones for each chunk (We call this the Master, and the individual splines of hair become defined as 'slaves')

Then we export this mofo into our engine.

Then the other half of the Tools are:
Shader + Physics

The shaders are sets of hardcoded values, which we can use to determine colour/variance, spec, strand width, etc...

Blond: It "can" be used for grass, but keep in mind this is primarily developed a 'skinned object' with bones n such. This tends to dramatically increases performance costs.

I also believe with the current setup we're using, some of the largest costs are due to shaders+screenspace, so it comes at a pretty considerable cost on a couple of characters.

I'd imagine a field of grass that took up the entire screen would turn everything into a slide show.

Jean-Pascal Thanks man!
TressFX is actually an AMD thing. Eidos built their own proprietary tools for the integration of this, but I don't see any reason as to why this wouldn't make its way onto Unity UE4, or Marmoset in the near future.

Plastix = Actually Pubic hair is quite easy to do in hairfarm. The general cost is the number of vertices in the splines, but yeah, we could make pubes pretty easily if the AD wanted that.

^_^

teaandcigarettes/Bek I have no idea what you're talking about.

;D

Dustin/Zac I honestly it can be integrated into Unity and UE4. I don't see it as being much different than tessellation.

Heck, it wouldnt surprise me if someone just puts something into their respective marketplaces for $$$$$. The issue is still creating the proper authoring tools, which I also think could be done by scripters (most of it seems to be based around 'defining' existing content).

PhattyEwok
TressFX is quite costly, so we found in some cases, hair cards are a nice hybrid solution.

Jackablade Ha!

It would have to be pretty fabulous.

TressFX 3.0 PureHair - Deus Ex Hair Rendering GDC Slides

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