ZBrushCentral

ZSphere Skinning Issue

This is my first post/question I’ve asked onto this forum. Forgive the current model quality, I want to remedy this issue before I go about continuing to work on it. This is the farthest I’ve ever ventured into ZBrush and I’m excited to finally work on my first human sculpt.

I’m trying to sculpt a semi-muscular female base. It’s headless for now because I plan to interchange the head and adjust the body proportions depending on what female character I decide to make next.

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My problem is: I have my ZSpheres set up. The ones I’ve placed along the ankle, knee and elbow joints bend and crease naturally. ZBrush skins them just fine the way I have it set up. The buttocks/lower abdomen region does not.

There’s some noticeable, jagged creasing and cave-ins at the upper thigh and at the base of the pelvis when I attempt to rotate the legs upward.
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Perhaps this was answered in the FAQ, but those links have since expired. I’m using 2018.1 for reference.

I want to know if:

  1. There's a way to manually paint weights onto the skin so that the polys near the pelvis contract rather than collapse.
  2. I should reconstruct/readjust the ZSpheres around the pelvis region to automatically fix this problem.
  3. I should continue to sculpt the T-posed model further so that, when I go to rig the model, the ZSpheres skin the model better.
  4. There's a YouTube tutorial or another ZBrushCentral thread that can answer my problem.

And, in your honest opinion, here’s a bonus question:

  • Should I pose the model sitting, store the pose to a layer, and shift the polys as I decrease the layer value so that the upper thighs curve better (if that's possible)?
I'm trying to get that natural dip that appears at the base of the buttocks when someone is standing straight. I figured rigging and posing the model sitting and then sculpting the curve to then fold it back would fix the issue.

Many thanks if you can help!

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