Convert Off Files

Object File Formats (OFF) are ASCII-based formats used for describing 3D objects; they define collections of planar polygons and vertices that create the object's surface. It was developed by Randi Rost at Digital Equipment Corporation's Workstations Systems Engineering in 1986. It was optimized from the beginning to support data interchange and archiving; in this case, the interchange and archiving of 3D objects. Although this plan originally bore fruit inside Digital, OFF has seen use in the 3D modeling community, partly because of its wide availability online. The OFF is general, flexible, and extensible for the purpose of interchange of 3D assets. The binary versions are for the efficiency of reading and writing. It is assumed that applications will develop their own, more efficient format for internal storage and operation on three- dimensional objects. The is a non-limiting file format: the OFF files can be used for a wide variety of object types. The policy decisions aren’t hard-wired in the design of the file format, or in the library routines that allow reading and writing of OFF files. Rather, the policy decisions have been left up to the designers since the format supports generic object definitions. You can open OFF files using MeshLab, GLC-Player, Blaze 3D, and RoffView.