Hi everyone! I’ve started using ZBrush a couple of days ago, but I just can’t do anything with it, because I’m having this weird problem with zspheres. Once i create my initial zsphere and hit a to see a preview of the polygon version, it is shown only as a semi-circle. If I create additional zspheres attached to it, and preview again, the shape of the other zspheres is ok, but the region where the initial zsphere was is always a complete mess: sometimes it points in all kinds of strange angles, and sometimes that part of the model can’t be seen at all, it’s like if the model was divided in two. I’ve already reinstalled zbrush, but the problem just won’t go away. And to make things worse, I can delete every single zsphere, except for the initial one. It won’t disappear even when i press ctrl+z! What should I do?
post up some images of the problem you’re getting. That will help to establish the problem.
Remember the rotation of the Zspheres are important, they will twist the mesh if turned at oblique angles.
Also you have to remember that you have to cap the end of a Zsphere with another at the base to get a solid mesh.
You have to unselect edit to get rid of the ZSphere. After turning it off try Control Z.
The original ZSphere requires the ends to be capped before you can view it. If you cap one end only you get an open end and it sounds like you are twisting it.
ZSpheres take a little time to get used too. Go to the Online Documentation on Pixologic.com for the documentation and lots of hints and tips.
Do some tutorials. Its worth the time. Check out Pixologics stuff.
Here, take a look:
I also recommend that you view the ZScript tutorial movies. See my signature.
The root (first) ZSphere has no geometry of its own. It’s a placeholder. That’s why you need more ZSpheres before you’ll see anything other than that hemisphere. This is also why you can’t delete the root.
As for problems you’re getting with the additional ZSpheres, odds are good that you’re attaching them in strange places. ZSpheres look round, but for purposes of skinning they are actually treated as cubes. Children should be attached to one of the faces of the cube. If you attach to a corner, well you’re going to get some weirdness. The easiest way to ensure that you attach in a good place is to turn on at least one axis of symmetry. Whenever the dots merge and turn green, you’ve got an ideal placement along one of the ZSphere’s axes – or to put it another way, in the center of one of the “cube’s faces”.
Can we make them cubes then? It would be easier to keep track of the orientation.