Drawing Vessels and Nerves onto objects in ZBrush using Insert Mesh Brushes
How to create and use an "Insert Mesh Brush" in ZBrush to draw tubes (such as vessels and nerves) and have them snap onto a surface.
Make the brush and save it from the "Brushes" palette to a folder for future use.
NOTE I failed to mention in the video– occasionally the brush will fail to snap all points onto a model. I think this happens because the brush samples an origination point just once at the start of the stroke. To fix this you need to tell ZBrush to sample continuously throughout the stroke. To do this select....
Menu– Picker– Depth– Cont Z