I am basically following this tutorial step by step to add hair to a character I have been working on.
I have set up separate vertex groups for the left and right sides of the scalp. There is a strip of faces which don’t want to emit hair, and I have no idea why! These faces aren’t really any different to the faces which are right next to them, which are emitting hair.
As a test I even made a separate vertex group out of only the faces which were not emitting hair. I assigned that vertex group to the particle system under the “density option” and they still didn’t emit hair, hair just grew around them, like they’re some sort of an infertile desert wasteland!
Here is what is happening. Note the strip of baldness, as if someone just took a buzzer to her scalp and shaved that one strip. Maybe she is an aspiring clown.
These are the faces which are not emitting for whatever strange reason.
This is the entire left-scalp vertex group selected.
Oh and the same exact thing happens on the right side of the scalp too.