I was trying to create train tracks using NURBS path and everything looks to be great till I press play.
As soon as I play it in Blender Game Engine, the objects are no longer merged and have a clear separation (making it unrealistic).
I believe the problem is that one of the object moves till it reaches the other ones edges, but what I want is that they should not realign themselves.
Here is the blend file.
View 3D > Edit Mode > Toolbar > Shading/UVs > Recalculate Normals
$\endgroup$View 3D > Edit Mode > Select All Faces > N-Panel > Mesh Display > Face Normals
$\endgroup$