Is there a way to delete part of a hair?

jenniferhughey

These hair strands are driving me nuts, especially the one on her right side next to her eye, its bendy and kind of looks funky. I had someone tell me for another problem about morphing but I don't want to change anything but that one strand and its really hard to select just that. Is there a way to delete this errant piece of hair?

samurle

I think it depends on the geometry of the hair.  Hair is usually made up of flat polygons.  If a single strand of hair is part of a polygon, then you can't just delete it or even hide it.  The whole polygon would disappear.  You may need some Photoshop skills and erase it by adding the strand to a transparency texture map.  That's one way to do it without touching the geometry.

SixDs

It varies from one hair to another, but those strands may be a separate material group. If that is the case, then, with the hair selected, locate them under the Surfaces tab - they may be cryptically named and you may need to do some experimenting to locate them. With one eye on the viewport, select each item for the hair in the Surfaces tab, dial back opacity to see what disappears in the viewport, undo if it is not right, then repeat the process until you find what you are looking for. Once found, just dial the opacity to zero for each strand. You will need to do this each time you use the hair, but it will solve the issue.

Edit: Ah, I hadn't enlarged the image, but I see what you are talking about now. That appears to be a geometry issue - what hair is it?

Richard Haseltine

Those look like issues from the morph transfer from the base figure - try enabling Show Hidden proeprties in the Parameters pane option menu (the lined button in the top corner, or right-click the tab), then look in Currently Used and try zeroing the greyed out morphs (the hidden ones that match the base figure's morphs) - it's probably a lash morph that needs to be zeroed.

FeralFey

A quick and dirty solution would be to select those faces using the geometry editor. Select the polygons that you want to make "disappear". Create a new surface group (name it anything you want) and add those faces to it. Then go to the surface tab and with the hair selected in the viewport or the scene tab, navigate (in the surface tab) down to the new surface group you made and turn the opacity on. That should make the offending strand go away. 

jenniferhughey

SixDs said:

It varies from one hair to another, but those strands may be a separate material group. If that is the case, then, with the hair selected, locate them under the Surfaces tab - they may be cryptically named and you may need to do some experimenting to locate them. With one eye on the viewport, select each item for the hair in the Surfaces tab, dial back opacity to see what disappears in the viewport, undo if it is not right, then repeat the process until you find what you are looking for. Once found, just dial the opacity to zero for each strand. You will need to do this each time you use the hair, but it will solve the issue.

Edit: Ah, I hadn't enlarged the image, but I see what you are talking about now. That appears to be a geometry issue - what hair is it?

This is http://www.daz3d.com/aliza-hair-for-genesis-3-female-s could be that it doesn't quite "fit" my character, but I get this on a few hairs I tried, in that same spot. weird. Gorgeous hair, I need to figure out why this is happening. Maybe I'll try it on a Gen 3 basic figure and troubleshoot there. I hate to have to PS it, I'm not that great yet with "fixing"..

 

jenniferhughey

Richard Haseltine said:

Those look like issues from the morph transfer from the base figure - try enabling Show Hidden proeprties in the Parameters pane option menu (the lined button in the top corner, or right-click the tab), then look in Currently Used and try zeroing the greyed out morphs (the hidden ones that match the base figure's morphs) - it's probably a lash morph that needs to be zeroed.

That's interesting! Will try that..

jenniferhughey

FeralFey said:

A quick and dirty solution would be to select those faces using the geometry editor. Select the polygons that you want to make "disappear". Create a new surface group (name it anything you want) and add those faces to it. Then go to the surface tab and with the hair selected in the viewport or the scene tab, navigate (in the surface tab) down to the new surface group you made and turn the opacity on. That should make the offending strand go away. 

I know you helped me with a similar issue on another hair. I couldn't get the hang of the morphing thing selecting the dots, need practice. I'll try this and see..I'm not quite there when it comes to the more advanced daz stuff..

 

jenniferhughey

Richard Haseltine said:

Those look like issues from the morph transfer from the base figure - try enabling Show Hidden proeprties in the Parameters pane option menu (the lined button in the top corner, or right-click the tab), then look in Currently Used and try zeroing the greyed out morphs (the hidden ones that match the base figure's morphs) - it's probably a lash morph that needs to be zeroed.

Well, it wasn't a greyed out parameter, but when I zeroed out some of the lash properties and put some all the way to 100, the combo made the funky bent sides look way better and smoother. It's not 100% but I can live with this one now. Thank you SO much.

Blackbirdx61

One thing I often do; but I dont do the real time consuming I Ray renders is do two or more BGL/IGL renders one with the hair in view, one with the hair invisible; eye closed on scene tab of course stack them as layers in MS5 and erase the offending hairs. I you use IRAy, you may have to play with the gamma of you patch layer to get an accepable match. Claudia's hair was done this way.