ZBrushCentral

Zspheres and Local Symmetry?

ZBrush Usage Questions
#1

Hi! What do the Transform> Activate Symmetry> Local ZSphere Symmetry and Local Radial Count buttons do? And how do I use them with the new ZSpheres or ZSketch feature?

Turning them on doesn’t make any difference to the way ZSpheres are drawn.

Also, is there any way I can draw multiple rows of Zketch lines on my base ZSphere rig instead of single chains. Radial symmetry is restricted to the x, y z perpendicular directions. I want the rows to conform to the base ZSpheres. Something like the clumsy example at the bottom of the attached image.
Untitled-1.jpg

#2

from what i’ve seen Transform> Activate Symmetry> Local ZSphere Symmetry and Local Radial Count work when you want to retopologize over a zsphere model, for instance you can draw 8 retopology lines along an arm that is in the t-pose.
i don’t know the answer to your second question but don’t see any way to draw multiple lines that way

#3

Hey Spaceboy. Just tried retopology with Transform> Activate Symmetry> Local ZSphere Symmetry and Local Radial Count. The points created don’t really stick to the surface. i don’t think those buttons are meant for retopology. Any guesses anyone?

#4

you can actually see pixolator doing that sort of retopology way back in the 2.5 videos, if you can find them.
also retoplogy never sticks to the surface, those buttons would only make it easier to make rows.

#5

I have observed during retopology that points or vertices do conform to the surface more or less, although, technically speaking, they don’t sit on the surface. for that to happen we can use projection. I am not a retopology expert , just what I know from my limited experience with it.

I tried looking for the pixolator videos, but couldn’t find them.will keep looking…

My guess is those buttons are redundant when it comes to ZSpheres. But then they should be inactive or grey. hmmm…

#6

retopology uses zspheres so they are not redundant. i’ve done lots of retopology, the points only conform with the initial drawing.
i did a quick vid showing how those buttons work here:

//youtu.be/RqmqJP3lUmk

i also just did a search for the 2.5 vids only one remains and its only the rigging one. i tired to upload my copy of it to youtube but it won’t convert.

#7

thanks for the video Spaceboy. The radial symmetry can easily place points on a mesh that is at right angles or perpendicular along X, Y and Z. Kinda removes the laborious loop making steps. To that extent they are useful. i wish, in addition to that, we could just drag those points radially along geometry that could be pointing in any direction.
Anyways, so I guess the buttons are for retopology after all.