Hair Tool

Ok. I finally got it working after several tries. I'm not sure what made it work, but copy/deleting/copying the HairSetting script defintely had to do with it. I then tweaked waviness and other parameters and finally looks like it is keeping the pace and the physics look realistic. Still need to try more tweakings but Iwouldsay it looks a bittoo synthetic. A meshstripes/cloth simulation alternative seems to blend better with the rest of the elements of my character and scene. This is a very promising tool anyway and I'm eager to see it with my oculus. Upgrading to 2017.3 broke cloth simulation for this character for some unknown reason and I must deactivate either the hairmeshh cloth component or the dress one, I can't play them both or everything gets messed, so using this hair instead might be a solution. I still need to decide because of the difference of appearance but this tool definitey is very interesting andgives very good results.
I'd suggest maybe to add the possibility to change tones of groups of hairs, not just root and tips. Also using textures instead of flat colours. Someone suggestedthat too I believe.

Thanks for the fast support and keep the effort!

 

Edit: Nevermind, figured out the issue. Camera had a raycast making sure my character was visible and the hair was getting in the way, changed the script to ignore the hair. Sorry if you wasted any time looking at this. Awesome product.

 

Hello, thank you very much for the great tool!

Can I add the Hair Tool components (GeometryCreator, HairSettings, and CollidersProvider) through scripting? For example, if I have a GameObject in the scene, instead of manually dragging the GeometryCreator component to the GameObject, how can I add the component through a script? This is my code but I couldn't get it working. Maybe I did not do this the right way?

// Add the HairGeometryCreator component to the existing GameObject
HairGeometryCreator creator = gameObject.AddComponent<HairGeometryCreator>() as HairGeometryCreator;
MeshFilter meshFilter = gameObject.GetComponent<MeshFilter>();
creator.ScalpProvider.StaticProvider.MeshFilter = meshFilter;
creator.Geomery.List.Add(new GeometryGroupData());
creator.Geomery.SelectedIndex = creator.Geomery.List.Count - 1;
creator.Geomery.List[0].Generate(creator.ScalpProvider.Mesh, creator.Segments);

// Create a GameObject that contains the HairSettings component
GameObject hair = new GameObject();
HairSettings settings = hair.AddComponent<HairSettings>() as HairSettings;
settings.StandsSettings.Provider = gameObject.GetComponent<HairGeometryCreator>();
settings.RenderSettings.HairMaterial = Resources.Load("Hair") as Material;

 

Hi,

I was able to sort out a workflow for Zbrush by creating a custom mesh for the Geometry Importer.



Should each strand have a unique index in the scalp mesh?

The fibers in Zbrush do not match the topology so I have to handle mapping them to a scalp mesh.

Thanks

 

Each stands root vertex shoud be in same position with some scalp vertex

 

It was not developed to use this way.
Creator script do some things OnAwake. In your case data is initialized after Awake. So you can try to move code form Awake to Generate

 

[Upgrading to 2017.3 broke cloth simulation] Reimporting pack will fix it.
[using textures instead of flat colours] I plan to support both

 

I exported hair geometry from Maya to Unity and applied Hair Tool to it. The hair geometry quickly fell off when the simulation started. I compared my settings (see attached screenshots) to the tutorial and document and did not find any major difference. Do you know any reason that might cause this problem?

 

Increase Iterations.
Play with root - tip elasticy curve
Add colliders providers for head collisions
Also try to decrease gravity

 

Hello,

i made a little setup to test Hair tool for my project, but it's actually not perfect because of a visual bug :

To make this setup it has been complicated, i tested multiple ways to do so,
and the first problem i encountered was the main pose wich was not the same as the animation:

So i tested by using a separated mesh first, then each separated parts to meshes, but finally came to do it directly do it on the skinned mesh because it's simple to remove unused parts and create group for each part.

it works but not perfectly and i would like to know if the bug is caused by my workflow or by the shader himself.

 

I had another question,

Would you plan to make the possibility to define grows, density, colors and others possibilities from texture map ?

also would you like to add th possibility to rename groups so we can identify them easily ?
And also the possibility to Show/Hide the groups to keep the process Clean or at least set the color to the new group directly

 

i made more est and practices to setup my character, and it returns always that the max result i can get is using 1 group or 2, but at the third and fourth, the shader bugs a bit.

This time i made the head on the first group, wich was perfect alone,
then i added the second group withe the arms, wich was also working correctly.
then i added the third with legs and tail and bugs started to appear,
so i removed the tail and made a final group for this part.

and as you can see the fur is behaving strangly, especially at this step of the animation, when the arm, and the tail are near of each other.

 

Thanks for reporting, It is a bug. You can only create 3 groups. I'll try to fix it tomorrow.

 

Hi! I'm really enjoying the tool so far but have an issue with ambient occlusion - when AO is enabled in the post processing stack, the hair appears transparent and I can see the outline of the character's head underneath - this happens with both 2017.2.0 and 2017.3.0. Is there any solution for this at the moment?

 

Did anyone test this on OSX with Metal?

Does it work, or needs still to be updated

 

I've fixed it and uploaded to store as 1.3.2. Is you need it faster just write to my support mail

 

It because normal depth testure is not supported by default. Here is quisk tutorial how to set it up

 

It will be soon but only in Unity 2018beta as it support tesselation on Metal. I'm working on it right now .

 

Great to hear!
Have installed 2018 beta on Mac

 

It doesn't work with SEGI! please help.

 

Thank you!

 

The same solution you should add Depth texture support

 

Updating to 1.3.2 breaks tool. Hair does not show in play mode. Reverting back to 1.3.1 all works....

 

Can you also check for iOS when porting to metal?
thanks

 

great tool ...
but is it possible to using this tool on an animated alembic object?

 

Yes if you import animaation as blend shapes

 

Yes. obvious

 

Maybe it is not compatible with older verssions but it works.

 

as blend shape?? i needs mini tutorial

here is an animated alembic character sample:
https://www.dropbox.com/s/k7aqyqv8hd5x4ct/bb.rar?dl=0

how to do that?

 

any helps? :\

 

Ok I'll play with it and let you know

 

thanks alot ...

 

Extremely fast movement issue is finaly fixed. Will be avaiable in 1.3.3
https://twitter.com/shpak_andrii/status/956637258488209415

 

Just curious if the issue only appears when the hair is moved relative to the camera or if it occurs relative to the world. From the video I would guess the issue was only relative to camera.

 

object position was animated. like just regular char movement

 

https://twitter.com/twitter/statuses/956542134521421825
Motion Vectors support is added. Will be avaiable in 1.3.3

 

Alembic objects is not supported yet. I've added it to my feature list.

 

does a chance to supporting alembic on 1.3.3?

 

Not, 1.3.3 is already uploaded to store. I'll try to add it in 1.3.4 but I can't promise as I didn't worked with alembic import to unity and don't know how it works under hood.

 

its very simple ... just go to https://github.com/unity3d-jp/AlembicImporter/releases
and download package and install it ...

then just drag and drop alembic file to unity :]

for playing animation select it from hierarchy and on timeline window click create and then right click and click on "add from animation clip"

 

thanks, I it will help

 

Sorry for dumb question but I was wondering if this would work with mobile, or if there is an option for caching the hair and using a still version for mobile.

 

could you tell me about this question ?

 

i did the update to 1.3.3, but the render is not showing any hairs now

NullReferenceException: Object reference not set to an instance of an object
GPUTools.Hair.Scripts.Runtime.Render.HairRender.Awake () (at Assets/GPUTools/Hair/Scripts/Runtime/Render/HairRender.cs:19)

i miss something because i tested in a simple scene, dropping hair creator and hair settings on a mesh, but hair renderrer is created on the fly and is missing the material.

 

well, i reimported the whole plugin and restarted my setup to make it work,
but i'm still having an issue with it, same as the last, this time with only one group on a static mesh:


and this bug can be removed while adjusting volume so the best is to avoid volume at 1,1,1 and for exemple 0.99,1,1 will correct it

 

While brushing hairs, it can sometimes happens that using middle mouse in remove mode to move camera, also delete splines.

it also happens while rotating camera, maintening Alt

and it can also soudenly does nothing while you try to continue editing it

 

i tryed to make my strands from max 2018, but ...
sorry to say that it doesn't work very well:

 

It doesn't works on mobile. I plan to add Metal support in unity 2018

 

Will fix it in fast update