Hair texture glitch related to alpha channel?

[billypnats]

I tried to edit a hair texture for a wig, it had highlights before so I used decolorize to remove it,  and I'm now seeing this show up. I think it's always been there but possibly just less obvious before. Does anyone know or can provide some tips on how to fix this without doing a retexture?

[plutocene]

Easy to test. Apply a different diffuse texture that is entirely black for example. Since you have messed around with the mesh I'd say the mesh submerges in the head.

Edited December 21, 2025 by plutocene

[billypnats]

Sorry can you elaborate or point to me some resources ? I'm not sure what you mean by "mesh submerges in the head"

[Kastagir]

18 minutes ago, billypnats said:

I'm not sure what you mean by "mesh submerges in the head"

 

Perhaps they meant to suggest that the hair is clipping with the head, which is what appears to be happening in your screenshot.  You could try changing your character's forehead depth in Racemenu or using the sculpt tool to deflate the forehead to see if there's a noticeable change.  You didn't specify which hair mod you're using, but I suspect it comes with bodyslide files.  If it does, then you can always adjust the forehead depth in bodyslide and generate meshes again to accommodate your racemenu preset.  It doesn't look like an issue with the alpha channel of the texture.

Edited December 21, 2025 by Kastagir

[billypnats]

oh , its actually not clipping with the forehead. i should've uploaded a side way screenshot . It is from "gui hairpack" which is supposed to be private so therefore I cannot say too much about it

[plutocene]

If the hair is not clipping then it can be two things: 1. There is an alpha mask applied to the part of the hair strain and its thus invisible, 2. The mesh itself is clipped, as if vertices are missing. Take a look at it in outfit studio for example and like I suggested, create/apply a different fully black diffuse texture, that way you can test if its a texture issue or a mesh issue.

[Kastagir]

59 minutes ago, billypnats said:

oh , its actually not clipping with the forehead. i should've uploaded a side way screenshot . It is from "gui hairpack" which is supposed to be private so therefore I cannot say too much about it

 

Patreon mods are not private.  There's a link to a version of this hair pack on this very site.  Check the collision shape for the face in the .nif.  It looks very close to the hair and the hair may be clipping with the collision shape.  Since the collision shape doesn't render it can give the appearance that the hair is partially occluded and made invisible.

 

Edited December 21, 2025 by Kastagir

[billypnats]

I guess this is a texture issue. I also managed to "solve" the issue by lowering the alpha threshhold for the mesh from 180 to 100, but the hair looks for rough which isn't ideal

[billypnats]

24 minutes ago, Kastagir said:

 

Patreon mods are not private.  There's a link to a version of this hair pack on this very site.  Check the collision shape for the face in the .nif.  It looks very close to the hair and the hair may be clipping with the collision shape.  Since the collision shape doesn't render it can give the appearance that the hair is partially occluded and made invisible.

 

thanks I actually had no idea it was here. 

[Kastagir]

11 hours ago, billypnats said:

I guess this is a texture issue. I also managed to "solve" the issue by lowering the alpha threshhold for the mesh from 180 to 100, but the hair looks for rough which isn't ideal

 

I had a chance to download the mod and take a closer look.  The textures aren't the problem.  The author is layering hair shapes with zero threshold alpha properties.  What you're seeing in your first screenshot is the hair001 shape because it has a lower threshold than the hair shapes above it.  The hair also has no hairline.  The issue is clearly visible in Nifskope so you can test this by changing the threshold for the hair001 shape (try 10, then 20, then 30, etc.)  The author does not appear to know what they are doing.  Or they're lazy.  The physics configs are quite good but the NiAlphaProperty blocks need some tweaks and the hairs should all have hairlines (scalp) added so that you don't see a bald head through the hair at certain angles.  I tested v6 so it's possible newer (paid) versions are more refined.

[billypnats]

10 hours ago, Kastagir said:

 

I had a chance to download the mod and take a closer look.  The textures aren't the problem.  The author is layering hair shapes with zero threshold alpha properties.  What you're seeing in your first screenshot is the hair001 shape because it has a lower threshold than the hair shapes above it.  The hair also has no hairline.  The issue is clearly visible in Nifskope so you can test this by changing the threshold for the hair001 shape (try 10, then 20, then 30, etc.)  The author does not appear to know what they are doing.  Or they're lazy.  The physics configs are quite good but the NiAlphaProperty blocks need some tweaks and the hairs should all have hairlines (scalp) added so that you don't see a bald head through the hair at certain angles.  I tested v6 so it's possible newer (paid) versions are more refined.

thanks, I ended up messing around with the threshholds last night and got something that looks acceptable.Thank you!