To make character customization possible, models are composed of three separate parts - body, head and hair. Also - because the game allows you to "tan" girls - neither body nor head texture is embedded in mesh, but instead has to be loaded separately. Same with swimwear textures. Body also has extra "envelope" layer, that is used to guide hand and oil during oiling/massage scenes.
The skeleton has become even more complex, compared to previous models. One reason for this seems to be, that ingame body customization is now done with adjusting hidden bones.
|Full skeleton of a SBZ model|
|Ai in jungle (rendered with POV-Ray)|