--- /dev/null
+# Blender v2.78 (sub 0) OBJ File: 'world.blend'
+# www.blender.org
+mtllib ground.mtl
+o ground_tile_ground_tile_mesh
+v -1.000000 0.000000 1.000000
+v 1.000000 0.000000 1.000000
+v -1.000000 0.000000 -1.000000
+v 1.000000 0.000000 -1.000000
+vn 0.0000 1.0000 0.0000
+usemtl ground_mtl
+s off
+f 2//1 3//1 1//1
+f 2//1 4//1 3//1