Geometry:
No isolated verticesNo coincident verticesNo coincident/coplanar facesCorrect face normalsNo empty objects
Topology:
Quads and Triangles onlyModel can be cleanly subdividable
Other:
lighting and cameras are not included in the product (Model file includes only the 3D model)Model Scale: real-world scaleModel after 'reset xForm'Model centred at origin (0,0,0)all objects are named and logically grouped
Native Formats: MAX (Autodesk 3ds Max, filesize: 488 MB)
Exchange Formats: BLEND (Blender, filesize: 1.17 GB), OBJ (OBJ, filesize: 173 MB), FBX (Autodesk FBX, filesize: 132 MB), MAX (Autodesk 3ds Max, filesize: 488 MB), C4D (Cinema 4D, filesize: 1.09 GB), MA (Autodesk Maya, filesize: 1.21 GB), PNG (PNG, filesize: 2.77 GB), 3DM (Rhinoceros 3D, filesize: 78.5 MB)