ZBrushCentral

I want to make hair spherical

I want to make this kind of spherical hair.
3.PNG

I changed the shape of Spiral by initializing it.
Then I created a curve using a frame mesh.
I used a curved IMM brush.

1
There will be many gaps.
I couldn’t make it beautifully…

How can I make it?

This is an IMM brush for hair I made.

There may be a problem with the brush.

Please help me.

I referred to this tutorial.

Hello @beginner

You may need a spiral curve that has loops closer together, so you can draw more loops of the braid without needing them to be so thick to close the gaps. You can do this by increasing the “coverage” value when initializing your spiral:

closespiral


Generally speaking, the larger you set your brush size, the thicker the size of the curve stroke being drawn. However, this also increases the size of the stepping, and there may be limits to how well a given brush can conform to it, depending on how it is constructed.

In the following image, you see my curve stroke gets thicker the larger I set my brush radius. However this also increases the size of the intervals in the curve, and you see the stroke starts to have trouble conforming to it near the top. In the right-most image, I have also added a slight tapering effect to the stroke in the Stroke> Curve Modifiers menu, which helps it conform to the shape of the spiral a bit more.

This will also be affected by how your brush is constructed. I was not able to open your brush file, but it may help to review the documentation on how to create IMs. Make sure to unify your insert mesh so there are not worldspace size issues. Be sure to create the least amount of geometry possible in your insert mesh–the minimum needed to create the repeating pattern. Don’t make long segments–it will reduce the degree to which the mesh can conform to tight curves.

I would recommend checking out the different IM Curve brushes in Zbrush, and seeing which perform better for your needs. Then try to construct your brush in the same manner.



It may be of some help to increase the Brush > Modifiers> Curve Resolution in some cases.



Ultimately, I recommend aiming for the most coverage you can get while retaining a good quality curve, and then using the Tool > Deformation> Inflate operation to “fatten” up your stroke more. You can also run an Inflate brush set to low Z intensity (to make it more gradual and forgiving) to touch up specific areas.

It’s unlikely that you will be able to inflate enough to eliminate all gaps while still looking natural, so it might be useful to also keep a solid mesh shape underneath the braid. The hair will sit on top of this shape and look like a solid mass without having to fill in every little gap. When satisfied, the shapes can be fused together.

As with many things in ZBrush, you can get pretty far with automated tools, but may always need a bit of personal artistry to touch up the results.

Good luck!

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Thank you for your reply!

[Don’t make long segments–it will reduce the degree to which the mesh can conform to tight curves.]
I’ve been creating it for a long time. That was one of the causes.
I understood the cause. Thank you very much.

1
The length of the brush was changed.

I am close to my goal.
But the top is weird.
2.PNG
And when I changed the curve, it became thinner.


What should I do?

When initializing the spiral that you’re using to create the curve, keep increasing the “Coverage” value to increase the number of loops in the spiral. Make Polymesh 3d. Keep doing this until you find the right balance between the number of loops and the desired braid thickness.

coverage

Optionally, once created, you can also use the Tool> Deformation> Spherize function to turn the spiral into a more hemispherical shape:

spherize

It’s alright if there are some gaps. You can always use Tool > Deformation > Inflate to increase the thickness of the braids and fill in minor gaps.



Your stroke is decreasing size in the opposite direction. Flip the curve to the other side using the “FH” (Flip Horizontal) button, and the stroke should now taper towards the tip of the spiral.

fliphorz

Note that the tapering effect isn’t required. I just thought it might give better results towards the end of the spiral.

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Thank you for your reply.
I also tried after that.
1.PNG
3

Only the other brushes were successful.
4
Maybe

The difficult shape of the hairbrush may be the cause of the failure.

Youtube Follygon hair bursh

watch the tutorial on hair and download the brushes in the links.

Secondly, you could find an STL or OBJ file of Princess Leia online and just slice off the buns and use them as a base, stick them directly to the model with a subtool insert. Or take the buns and either give them polygroups through auto group and create a new version of them as a guide.

That or use a combination of follygon’s hairbush tutorial and the deformation tools, possibly inflate.

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