Hair Transparency Issue in Unity HDRP After Exporting from DAZ3D and Character Creator

Hello Unity Community,

I’m facing a transparency issue with hair when importing a character from DAZ3D and Character Creator into a Unity HDRP project. The workflow I followed is as follows, and I’ve also included a video to show the steps:

  1. Export from DAZ3D:
  • I created a Genesis 9 character in DAZ3D and applied hair.

2.Import to Character Creator 4:

  • I imported the character into Character Creator 4.
  • Added hair simulations but didn’t change the hair visuals or textures.
  1. Import to Unity HDRP:
  • I imported the character into a Unity 6 HDRP project using the **CC_Unity_Tools_HDRP
    pipeline provided by Character Creator.
  • The skin renders perfectly, but the hair has issues:
    • It looks overly thick.
    • It has a strange transparency effect where I can see through the hair in an unnatural way.

DAZ3DHairIssue UnityExportCharacterCreator.rar (23.3 MB)

I tried many things but I connote find what is the issue

  • I try many hair from daz3D all gives the same result
  • I try to merge hair materials in character creator 4
  • I try to export the hair without the hair simulations from character creator 4
  • I try to export the character to blender then unity but no need because it give the same result in blender before I exported to unity
  • I try to make the hair shader the same daz3D shader hair (Daz3D/uDTU HDRP.Hair)
    it’s from Daz3D bridge
  • I try to make the hair shader the unity shader HDRP/Lit and HDRP/Hair
  • I try to low the polygon hair in character creator using (Polygon Reduction-Object) InstaLOD



It seems that the most recent version of the CC_Unity_Tools_HDRP is for Unity 2021.2"+" and HDRP 12, while Unity 6 uses HDRP 17, so this might be a first issue.

I think the rendering issues come from transparent depth and ordering. Using the HDRP Hair Shader and tweaking the depth pre / post passes, and their alpha threshold value would probably do the trick.
Also, with the very short glimpse visible in the video, it is hard to tell if the hair materials are properly set, for example I wasn’t able to identify if the albedo/alpha texture was good or not.