I'm trying to create an outline of a building on top of a point cloud that is georeferenced.
Because it's georeferenced, the object needs to be far away from the world origin (about 500000m). There, weird stuff begins happening. The mesh gets a "ghost" effect and the exported mesh is completely ruined in the sense that faces appear and disappear seemingly at random. This also appears once the object is exported. For example, I exported some geometry in FBX format and opened it in Maya and in MeshLab to find the same errors with the mesh as in Blender (the only difference is that there's no ghosting in other software packages).
Here is an example of a cube with a wireframe modifier with this problem. Notice the uneven edges and lack of visible faces.
Any help would be greatly appreciated.