why only three of the floors can be seen?the building floors all have the same material but only three of them can be seen in the main tall building? why is that?
Transparency is not easy to achieve, something is probably not getting sorted correctly. Do they appear as you navigate the scene (move the camera)?
do you have transparency on the floors? First try making them not transparent.
I figure it out, it is doubleSide problem the material side is not double side. Thanks very much.