The problem is that there are coincident faces
I isolated this building box
Run _What
, which tells that there are 10 surfaces in the polysurface, even though only 5 is expected.
Then exploded it, deleted all double faces, rejoined. Now I can render it correctly (Raytraced uses the same engine as Rhino Render)
Here compared with the other houses that I did not give that same treatment:
To do all these in one go do the following:
- select all your houses
_Explode
_SelNone
_SelDup
- delete selection
_SelAll
_Join
This should give you cleaned up houses that render correctly.
I’d keep everything still selected and at the end run _MergeAllCoplanarFaces
, that will clean up your house models even more.
From
To
Final