Hi, im new here, but im a little familiar with ZBrush. And i ve got a realy annoying problem: i want to export some object from Cinema4D to ZBrush, but when im drawing these object on canvas in Zbrush, its always ‘hiding behind the background’, something like that. I cant see it when i draw it, i thought its connected with backfaceculling but i cant find that kind of option i zbrush. I tryied to move and scale it, but that didnt help. Only when i rotate it i can see a part of edge, but i couldnt get a full rotation, so i would see whole object.
The only way the model would be disappearing into the background is if you’ve filled the canvas with pixols. I suspect what’s actually happening is that it has flipped normals. What happens if you turn on Tool>Display Properties>Double?
And you were right, about flipped normals 
Its work when i turn on this option. Great Thanks 