Import .3ds goes wrong

Unity Engine
1

I have a question about importing .3ds models in Unity.

I have made a railtrack in Rhinoceros (see the picture). It consists of two polysurfaces (two rails).

I have exported it to .3ds.
When I import it into Unity, it looks like the other picture.

I played a lot with the export options but I can not get it right.
Does anyone recognize this problem?

In the past I have imported a lot of .3ds models in Unity without problems but now something is going wrong.


1014679--37608--$Unity railtrack.jpg
1014679--37608--$Unity railtrack.jpg1332×658 91.2 KB

1014679--37609--$Rhino railtrack.jpg
1014679--37609--$Rhino railtrack.jpg1114×716 179 KB

2

You’ll need to break it down into proper 3 and 4 sided polygons. You’re importing a massive ngon (a polygon with more than 4 sides) and the winding order is breaking. Ngons are bad, m’kay :stuck_out_tongue:

Also .3ds is not that useful a file format. You’d be better off with FBX (or, at a push, .obj ).

3

Ok, thanks.
I will try that.