Assets Unity SRP HD SSS

Hello,
I start threat about very very good implementation of subsurface scattering in new Unity 2018.1 SRP HD.
All achieved with standard Lit shader. I modified only ranges of some parameters.
Feel free to add your SSS works in this thread.
There is my attemps to SSS with especially for DAZ 3D:

 

Next screenshots

 

Lovely work, can you share tools, workflows?

 

The tools used - of course Unity 2018.1 beta and Daz Studio figures or any free model found in internet.

The workflow is very simple:

First we must have model loaded in Daz Studio. Next, we must export model from Daz Studio as fbx.
Then import this model into Unity.
Additionaly we have to copy all textures from Daz model - standard textures are not enough to achieve such result.
We need textures: albedo/diffuse, normal, bump, eventually sss and specular (this last is not supported by subsurface scattering in Unity).

Bump map texture had to be converted to normal map - in unity change texture to normal map and check "from grayscale" - bumpiness set to 0.01 and rest leave as it.

In Unity 2018.1 beta with SRP HD I use standard Lit shader and place textures into slots - and tweak some range sliders:
Base color - diffuse texture
Normal map - normal texture (if not present - I use bump map)
Mask map - i use diffuse map or specular map - (some specular maps are not good for it - then use diffuse map)
Subsurface profile - choose skin and set mask about 0.1 - 0.3 - that's enough
Subsurface mask map - sss texture - if present
In Subsurface profile configuration I set scale to 0.1 and set (/Asset/Settings/SSSSettings )
Detail input - I put secondary normal texture (bump texture) and set ranges:
- Detail albedo >0
- Detail normal scale - depends on textures
- Detail SmoothnessScale - depends on textures

And of course set PostProcess volume profile and lights.

 

Thank you Peter!

Edit: How did you manage to make the eyes? I saw a video explaining it, but I can't modify the default material of my daz 3d model, except by drag and drop. However, as the eyes are a superposition of different layers I can't replace the ones under the eyemoister

 

Hi,
Eyes consists of layers. The first layer is moisture and if you drag&drop material, you can only set material to this layer. Of course you can move in editor close to eye and drop material to other layer, but better solution is change material imported with fbx model.
My last solution is:
1. import fbx model (genesis 2,3,8), select imported asset and go to inspector
2. set rig to humanoid and set import material (not embeded)
3. apply changes
4. set eyes materials in material folder (cornea, sclera, eyemoisture, etc.)
5. if you import another fbx model to this folder and makes steps 1-3 the eyes in new imported model are ready

 

Awesome, I'll try that! Thank you so much Peter )

Edit: Worked, thanks!
and for the hair you used a mesh and added a shader made on amplify shader I guess?

 

Nice result!
Do you mind to give us some tips about the hair? Are you using a lit or custom shader?
Thx

 

Hi,
This is a standard Lit shader, but I'm not happy with results - waiting for shader graph working with it.
But with standard lit shader there's much fun with wind option used with shader

 

Hello Petersx,
Thank you for sharing your experience. It looks impressive!

I am in DAZ to Unity too at this moment. However, not using HDRP yet.

I've been wondering, did you use DAZ HD models in those pictures? I tried to export one HD model from DAZ and from usual 5MB .fbx it went to 150MB (plus textures, 5MB each). I guess it's a bit overkill for Unity game...?

Also do you have some experience with models you do in terms of performance in some Unity game scenario?

 

Hello,
I use it only for test purpose, rather for max quality of render than for performance.
I try to use high poly model by exporting as standard fbx from DAZ and then in 3ds smoothing the mesh to achieve high quality poly. But I lost skinning of mesh and some animations look ugly (f.e. jaw, eyes etc.)
Then I use new HDRP standard Lit Tesselation Shader and effects was great.
Now I'am testing Shader Graph with HD Lit node, but - it miss tesselations options - I'am waiting for Unity to enable tesselation in shader Graph, then I try to create new skin tesselation shader.

 

Thanks.
I saw recommendations to create Ambient occlusion textures in Blender, when setting DAZ characters to full PBR in Unity. Did you try them? It seems quite time consuming, so I would prefer to avoid it, if effect is negligible.

As for eyes, do you also use standard HDRP Lit shader?

 

Hi,

I saw a video about some basic SSS settings. Does anyone know any tutorial video on that? I forgot where it was and by whom...

It also showed some settings for thin objects, like a box that got SSS applied.

Would be cool to gather some tutorial-links for SSS here in general!

Thanks a lot!

 

Hi,
I don't try ao textures - I don't like Blender becouse of bad UI (for me)
For eyes I'am using also standard Lit shader

 

Wow nice hair. Doesnt unity have problems with rendering two sided hairvwith transparency?