How to resize an object in Zbrush and export it in real world units?
- The actual size depends on three things:
- Size in ZBrush
- Export Scale value (Tool->Export->Scale)
- Unit in the target software. Maya’s default unit is cm.
- Change the size of the object:
Go to Tool -> Geometry ->Size -> Modify the XYZ Size value (this is the largest of the three (x,y,z)).
This is an independent unit. (By the way ZBrush really likes if the object size is about 2 unit.)
The expression is this:
Value Wanted (the true size of the object in Maya) = Size (in Zbrush) × Export Scale (in Zbrush)
184 cm high character = 1.84 unit (size in ZBrush) × 100 (Export scale in Zbrush)
100 cm high character = 2 unit (size in ZBrush) × 50 (Export scale in Zbrush)
This is true in every export scenario (GoZ, FBX export, OBJ export)