I have been working on a festival lantern for some hours and i had some different meshes in the blender project. Because i was going to use this in my unreal engine 4 project i had to join them together but after i selected every mesh and clicked on join, the mesh turned dark. In Unreal Engine its looking weird and the mesh is only rendering from one side.
Before i joined the meshes
After i joined the meshes.
In Unreal engine 4 (The part above the lantern is not correctly rendered.)
Could somebody help me solving this problem?
