Model Problems Importing Into Unity

Questions & Answers
1

hello,

whenever I import my 3d model the front side looks like this:

http://img94.imageshack.us/img94/3507/image1sr.png

but when I look at the other side it is hollow like this:

http://img821.imageshack.us/img821/3333/image2ln.png

and solution?

2

Which modelling tool are you using?

It looks like your modeling tool has backface-cull disabled. You want to enable that in order to make correct models.

3

If the back faces appear to be missing could it be that the normals are inverted?

I have found that this often happens when extruded from a flat plane in Blender. It is easily corrected by selected the inverted faces and clicking the flip direction button. Sometimes just recalculating the normals (button in Blender) will detect and correct this.