Object visible only from the bottom When I place my fbx file in unity it's only visible from the bottom, when I look at it from the top I can't see anything. How can I fix that?

This is how it looks in blender: https://imgur.com/a/F7uPO38

This is how it looks from the bottom in Unity: https://imgur.com/a/yAH2bRy

This is how it looks from the top in Unity: https://imgur.com/a/vEuQsPb
Most likely, the normals are facing the wrong direction. Unity doesn't render the backside of polygons, while blender does.

Try flipping the normals around. The reference for doing this is here.