Georgia hair Bare spot in the back of the head

areg5

Another issue with [Georgia ]this hair:  Depending on the head position, there is a huge bald spot in the back of the head that is very diffcult to cover up.  If I use the adjust ment dials to push the back of the haed back, it just looks like a skull cap.  I have to really fiddle with it, or photoshop it in the back to make it look right.  Does anyone have a fix for this one?

Richard Haseltine

Are you using the hair on the figure it was made for or on another figure?

areg5

Yes.  I am using it on a Gen 3 female.

Richard Haseltine

And it's this hair https://www.daz3d.com/georgia-hair-and-oot-hairblending-2-0-for-genesis-3-female-s , not https://www.daz3d.com/georgia-hair-1 ?

Is the figure moved far from the origin?

areg5

Yes,  The hair is fitted to the gen 3 figure, and  it is the newer Georgia hair for gen 3

Richard Haseltine

Could you post some images of the issue, or poses that cause it? I have used the hair and don't recall any issues with it.

areg5

Attached is an image showing the back of a G3 head in neutral, flexed and extended positions

Richard Haseltine

Do you mean tipping the head back when you say extend? I just tried, both using the head bend slider n its own and using the NeckHead Bend Pose control and didn't see an issue like that. How are you posing here? Have you morphed the figure - especially the height?

rames44

Some PAs set up hairs so that their positions are influenced by both the head and also the neck bones. Presumably to allow the hair to behave more "naturally." This can cause problems like this if the head and neck bones have very different settings. (I.e. neck is neutral, while head is bent all the way.) Do you get the same result if you also tip the head at the lower and upper neck bones at the same time as the head?

areg5

rames44 said:

Some PAs set up hairs so that their positions are influenced by both the head and also the neck bones. Presumably to allow the hair to behave more "naturally." This can cause problems like this if the head and neck bones have very different settings. (I.e. neck is neutral, while head is bent all the way.) Do you get the same result if you also tip the head at the lower and upper neck bones at the same time as the head?

I thought of that, as I usually move the head and neck together.  But it doesn't make a difference if I move the head by itself or with the neck

areg5

Richard Haseltine said:

Do you mean tipping the head back when you say extend? I just tried, both using the head bend slider n its own and using the NeckHead Bend Pose control and didn't see an issue like that. How are you posing here? Have you morphed the figure - especially the height?

Yes, extend is tipping back.  There are character morphs on the figure, but I didn't adjust the height

Richard Haseltine

areg5 said:

Richard Haseltine said:

Do you mean tipping the head back when you say extend? I just tried, both using the head bend slider n its own and using the NeckHead Bend Pose control and didn't see an issue like that. How are you posing here? Have you morphed the figure - especially the height?

Yes, extend is tipping back.  There are character morphs on the figure, but I didn't adjust the height

Try zeroing the morphs, with the pose applied and the hair poking through the skull - does the issue go away?

areg5

I'll try that...

JayEl

I had a similar issue recently with a different hair. I added a smoothing modifier to the hair (like you do with clothing to fix poke throughs). That worked for me, but my bald spot was quite a bit smaller than what you're showing. Increase iterations if needed.

Saxa -- SD

areg5 said:

Another issue with [Georgia ]this hair:  Depending on the head position, there is a huge bald spot in the back of the head that is very diffcult to cover up.  If I use the adjust ment dials to push the back of the haed back, it just looks like a skull cap.  I have to really fiddle with it, or photoshop it in the back to make it look right.  Does anyone have a fix for this one?

Had same issue with another newer hair (meant for G3F & G8F) during head tilted back.   Similar scale of issue.

Repainted the bone weights (main rigging + custom bones) and issue is 100% gone.  Tested it in many poses.  Likely some of the hair posing is affected, but this was a bad issue for me too.  Looks fine without all the extra posing anywho.

Figuring out which bones takes a bit.  Good thing with Daz Studio, is as you paint or subtract weight paint, the mesh moves.  The not so nice part is weight is shown as all red, regardless of weight.  So it was more a trial and error as opposed to seeing what the weights really are.  Or that's what I had this time.   Not sure why that is.  Have had other daz weight maps, like dForce influence, where can see graduated weights with different colors, like blue.

Edit.  Scratch that part about only Red.  DS allows you to setup your own colors scheme for weights.  Made 5 for weights.  Coolsies!  Just had to activate the display of it in the submenus.  Everything in the menus is so contextual.  Takes a while to find.  And Adding custom bones to hair that don't have them for posing or changing length/size is really pretty easy. And of course fixing deforms for more challenging poses, which is most likely issue OP has.