Black cuticles. Er... what?

JOdel

Herer's another strange one. I've got a figure that renders the cuticles black. Or at any rate, there's a black line over the cuticles. In profile the line appears to be raised. I can and have fixed it in post. But I'd like to have some idea of what is causing it.

I havn't a clue of where it comes from. Like the black eye bug, I've tried applying more than one skin texture and still get the black cuticles with all of them.

Studio 4.12, on an iMac running Mojave, 3DL materials (and yes, they have all been the 3DL versions of the textures, no converted from Iray textures). Any suggestions?

Sven Dullah

JOdel said:

Herer's another strange one. I've got a figure that renders the cuticles black. Or at any rate, there's a black line over the cuticles. In profile the line appears to be raised. I can and have fixed it in post. But I'd like to have some idea of what is causing it.

I havn't a clue of where it comes from. Like the black eye bug, I've tried applying more than one skin texture and still get the black cuticles with all of them.

Studio 4.12, on an iMac running Mojave, 3DL materials (and yes, they have all been the 3DL versions of the textures, no converted from Iray textures). Any suggestions?

I've never seen anything like it, but thinking it's the same issue as the black eyes one? Could it be something with your render settings? Like having the shading rate set too high?

Sven Dullah

Btw, did these problems start after upgrading to 4.12?

L'Adair

JOdel said:

Herer's another strange one. I've got a figure that renders the cuticles black. Or at any rate, there's a black line over the cuticles. In profile the line appears to be raised. I can and have fixed it in post. But I'd like to have some idea of what is causing it.

I havn't a clue of where it comes from. Like the black eye bug, I've tried applying more than one skin texture and still get the black cuticles with all of them.

Studio 4.12, on an iMac running Mojave, 3DL materials (and yes, they have all been the 3DL versions of the textures, no converted from Iray textures). Any suggestions?

It's a little difficult to tell from the size of the attached image, but it looks to me like the fingernails are not lining up correctly with the hand, and are leaving a small opening between the nails and the fingers. Then when you render, shadows are being added in these mesh voids. If I'm right, it could be caused by a morph you're using on the hands and/or fingernails. Or there could be an issue with the character that's needs fixing by the PA.

ChangelingChick

That looks like a displacement issue. Can you turn displacement off and see how it looks? 

JOdel

I've used and changed the hand morphs a couple of times and the problem continued. I'll check whether there is displacement on the nails. 

I've never had it happen with another character ever, so, yeah, this only started in 4.12. And, so far as I can recall, it's just a dial-spun G8F with mostly Zev0's aging morphs, which never gave me any problems before.

I may need to zoom in on the hands and do a render there to see what is going on. I agree that it looks like it could be a hole where the nails don't meed the mesh, but the line appears to be *raised* which a hole oughtnt to do. 

The black iris bug was the program throwing a glitch. This is likely to be another one. But going back and reapplying *all* the figure's textures fixed the eye bug. I've no idea how anythhing but the basic character texture would affect these.

outrider42

Is that the cuticle or the fingernail? It looks like a fingernail on the middle finger. Its like the textures are not lined up. This isn't a converted texture, is it? This looks like something Blacksmith3D's texture transfer would do, its terrible at fingernails. It could also be a UV map issue.

JOdel

Well, it turns out to be the fingernail geometry itself. Yes, the black line is a shadow. the Nails have crumpled back on top of themselves. No idea what caused it. The only morphs used that would affect the hands are the base morph for Edie 8, and Redz Dorothea which is a character for Edie 8, and I've used both of those without issue on a couple of other characters. I can'tr see any reason whatsoever for hand propogating scale or Zev0's aging morphs to affect the geometry of the fingernails.

At present, all I can do is turn the nails off. At some point I may start over with a fresh G8F and duplicate the morphs one at a time to see whether the glitch re-occurs. But I suspect it probably won't.

DisparateDreamer

 looks like possibly a nails length morph dialed into the negatives, maybe check nail length morphs?

 

MoonCraft3D

Odd, I just had something similar and I ended up having to photoshop it. It hit the fingers,and even the neck. Never had this before.

 

outrider42

It does look like the nail length is somhow dialed in the negative. Have you checked for corrective morphs applied to it in the parameters hidden morphs? There has to be something there if this only effects the one character.

JOdel

Didn't think of that. Will check that tomorrow. I'll bet you're right that it's something in the hidden properties since none of the nail morphs that show up in the shaping tab are used at all.

ETA: Yup. That was it. Show Hidden and Currently Used turned up a completely random nail morph set at -100. Totally baffled at how that got in there. The character it was built for isn't used at all. But zeroing it out cleared the problem.

Thanks everyone!