A 3DMF file is a three-dimensional object or scene created with QuickDraw 3D. It can include 3D objects with lighting and shading characteristics.

QuickDraw 3D (QD3D) is a 3D graphics API developed by Apple. It was designed to provide an easy way of creating 3D objects and sharing 3D models between computer systems. QD3D was initially popular among Mac developers, but eventually was superseded by other 3D technologies. Apple stopped using QuickDraw 3D around 1999 when the company adopted OpenGL as the 3D standard.