Hair Designer - Dynamic hair & fur tool

Forgive me for another question - I just started using Hair Designer and it's great!

I'm having a problem where the hair is visible through the character mesh (I'm seeing hair from the front rendering when looking at the back, and vice versa).

The scene is using HDRP, and the character's shader is HDRP/Lit. Switching to another shader type doesn't seem to affect it.

I understand the HDRP functionality is brand new, but I wonder if you've seen this and if you have advice for fixing it?

Thanks again for the awesome tool! I've attached an image to show my issue.

 

Nevermind!

Immediately after posting, I found that setting the hair material's Depth Offset to 0 fixed it!

Thank you for this quality tool!

 

WIP new fur shader (geometry shader)
compatible with the Texture Generator

 

Here with more density

 

That looks really nice!

 

Mixing fur technics (shell and geometry)

 

Now it's compatible with the custom color map

 

And it's also compatible with the fur mask
Super fun to use

 

This is incredible! Is it possible to adjust settings like this at run-time? I have a creature design that is covered in fur-like tendrils all over its body that change color based on mood. Would that be possible out of the box?

 

Yes, there's a lot of settings that you can change at runtime, like : root and tip colors, length...
You could also modify the textures

 

Brilliant. Thanks for the heads up I will definitely pick this up!

 

Thank you,
this version still need a bit of work, but it should be available soon

 

WIP better control : lighting, AO, shadows

 

Wow really nice result

tip : you can change the alpha of the root color to fade the strand with the skin.

 

I can't stop playing with that

 

Pretty awesome. Will this work with skinned mesh renderer and rigged creatures and in play mode?

 

Yes, it will work with skinned mesh
The brush system is based on textures, so it could work at runtime,
I'll add a way to interact with the fur at runtime later

This shader will only work on platform compatible with Geometry shaders.

 

Awesome. I need this!

 

I am new to this asset, it looks fantastic, but I am having some issues (I bought the lite version initially, which I am sure is not helping).

I create hair dynamically on an UMA. I set the motion zones through code at time of creation. This all seems to work well, but it is like they are not initiated? If I click on the UMARenderer during test and then select the Motion button on HairDesigner component then they suddenly start working (no other changes).

Setting the variables seems a little cryptic, eg. setting the limit float involves setting the y component of a Vector2 with no idea what the x component does?
I have yet to find how to set damping and bounce etc. through code?
Have I missed a detailed explanation of the API somewhere?

So I tried changing the hair colour through code at the time of creation (there is an example for this in the documents), which I initially copied. The debug shows all variables are setting correctly, but the colours/parameters do not change. If I change them in the editor during test they do change. I have included layer.m_shaderNeedUpdate = true; which in the absence of an API explanation I assume is the cue to update?

Thanks for help

 

Thank you for the feedback,

the parent bone of the motion zone is not properly initialized, when the runtime layer is generated.
Sorry, I'll fix that in the next release.

I'll also add an API to setup the motion zone at runtime
In the current version, it's a bit tricky to change the values

Motion limit :
The x parameter is the negative limit
layer.m_motionZones[0].motionLimit.x = -layer.m_motionZones[0].motionLimit.y

Damping parameter :
layer.m_motionZones[0].pid.m_params.kp

Bouncing parameter :
layer.m_motionZones[0].pid.m_params.ki


You have to set the parameter m_shaderNeedUpdate to true when you want to modify the shader parameters at runtime. This is specified in the documentation :
layer.m_shaderNeedUpdate = true;

I'll add a comment in the documentation to explain that this is mandatory.

 

Thank you for the fast reply (I am not surprised i struggled to find those variables .

Regarding this last comment, I did add this line as specified in the documents, but it doesn't appear to work? This point was clear in the document.
If i recall correct, it was in Update(), but i assumed that is unnecessary to do in Update()? Changing the colortip in the editor during test mode worked fine, changing through code and debugging through code seemed to suggest it worked but the colour did not change.... could i be missing anything else?

 

The final modification is made by the HairDesigner component Update()
So the HairDesigner component must be enabled.

I did this test with the UMA loader

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using Kalagaan.HairDesignerExtension;
5.  
6. public class TestChangeColor : MonoBehaviour {
7.  
8.  
9.     HairDesignerUMALoader m_loader;
10.  
11.     // Use this for initialization
12.     void Start () {
13.         m_loader = GetComponent<HairDesignerUMALoader>();
14.  
15.     }
16.    
17.     // Update is called once per frame
18.     void Update () {
19.        
20.  
21.         if(m_loader.m_hairDesigner != null)
22.         {
23.             HairDesignerGenerator layer = m_loader.m_hairDesigner.GetLayer(0); //get the layer by id or by name
24.                                                               //the shader parameters have to be casted into the shader class used by the layer
25.                                                               //All the shader classes can be found in the folder "HairDesigner/scripts/"
26.             HairDesignerShaderAtlas shader = layer.GetShaderParams() as HairDesignerShaderAtlas;
27.             //all the shader parameters can be modified
28.             shader.m_tipColor = Color.white;
29.             shader.m_rootColor = Color.red;
30.             shader.m_length = .5f;
31.             shader.m_alphaCutoff = .8f;
32.             //...
33.             layer.m_shaderNeedUpdate = true;
34.  
35.         }
36.     }
37. }

 

Thanks, that must be it. Will change.

 

The advanced Fur layer will include a GPGPU motion system instead of the motion zone.

 

Here on sphere

 

This is looking better and better all the time.

 

On a Skinned mesh

 

I have some cats that are waiting for this….

 

Can we set the strength of the physical fur wobbling with a map/fur lenght by normals(directions) or by a global value?

 

There's a

For now there's a global value for the motion settings, and there's a texture mask for the length.
I'll add additionnal settings in a texture, so it will be possible to set the wobbling FX on specific parts of the mesh.

 

Cool. :>

wobbleFX = furlenght * globaleffectstrenght then and in future version there is basically wobbleFX = furlenght * furmask * globaleffectstrenght.

Great work so far. :> I assume wind and gravity will also work at some point.

 

Yes, wind and gravity will also work with it
Most of the parts are already done, now I have to finish to mix all and optimize

 

Better gravity settings

 

I haven't gone through the whole thread but found this while on my quest for UMA hair. Am I correct in stating that this is now compatible with UMA? It looks amazing just as it is, but I'm looking for something that can be integrated with UMA.

 

Short hair and long hair layers are compatible with UMA, but the fur layer is not.
There's a addon for UMA in the package

 

Is the fur layer eventually going to be UMA compatible, or is there a fatal snag?

 

It looks like UMA compact all the textures into a single one and modify the UVs.
The fur layer is based on Texture mask, so the uvs are different from the original mesh.
I'll search a way to fix that later

 

Things can be separated by material, if that helps.

 

The main issue is that the UVs are different from the original version.

 

It has been like 15min since I spammed this thread…

 

That's looking pretty good.

 

Wow!
Really nice

 

Ugh... This program/plugin is great but I am reallllly struggling to get it working the way I would like. Pretty much every haircut I attempt to create ends up looking like Danny Green from the Raptors lol.

But I have one major question that I can't seem to find the answer anywhere in the docs:

How on earth do I switch layers of haircuts at runtime?

I am trying to make a character designer, and was hoping to create 7-8 haircuts, and a simple "- +" button GUI to cycle through the different cuts etc... but I cannot find any API documentation on that, and in the coding environment its even less obvious. Like I see how to GetLayer... but I don't see a "SetLayer" function or an enable layer... There is some cryptic sentence about how you can call a prefab, and I see some function m_prefab but thats as far as my Sherlock skillz went.

 

You can enable/disable each layer with the bool parameter 'm_enable'
m_hd.GetLayer(i).m_enable = true;

I'll add this in the documentation

 

@wetcircuit great work do you think you can add "baby hair" to ground the hair to the scalp more?

 

any news about braids? basic hair caps to speed up creation? Or the possibility to export the hair with bones to give some touches in another software and re-import?

 

I'll continue my work on the mesh generator after the release of the advanced fur layer.
Maybe I should add the way to import custom mesh in the long hair layer, it could be done before the release od the mesh generator.

I've no plan to export/import the hair models, it would be a pain to keep the skinning and the blendshapes compatible with the original character. I want to keep a non destructive workflow, so you'll always be able to edit the haircut within unity.

 

Hi, I've found a problem when importing HairDesigner runtime layers to a UMA character.

In the HairDesignerUMALoader class:

Code (CSharp):

1.  
2.     public void Awake()
3.     {
4.        
5.         // WRONG: avatar not found
6.         //UMA.UMADynamicAvatar avatar = GetComponent<UMA.UMADynamicAvatar>();
7.  
8.         // CORRECT: avatar found
9.         UMA.UMAAvatarBase avatar = GetComponent<UMA.UMAAvatarBase>();
10.  
11.         if (avatar != null)
12.             avatar.CharacterCreated.AddListener(GenerateLayers);
13.        
14.     }
15.  

I'm currently using Unity 2019.1.1f1, HairDesigner Pro 1.7.0, UMA 2.8.1
Is it a proper fix or maybe I've messed up something?

Anyway nice work with HairDesigner! It's one of the best tools out for Unity!

 

Thank you for the feedback,
It works well with the UMAAvatarBase class, I did my tests with UMADynamicAvatar.
I'll fix the script for the next release

 

Is this a better hairline?

Turns out there's a whole panel where you can "anchor" the root of the hair to the model… So now that I see how to adjust it I realize how bad my settings were, lol.