STP formats can be used to exchange data between CAD, Computer-aided manufacturing, Computer-aided engineering, Product Data Management/EDM, and other CAx systems (Computer-aided technologies). OBJ coordinates have no units, but OBJ files can contain scale information in a human-readable comment line.
Vertices are stored in a counter-clockwise order by default, making explicit declaration of face normals unnecessary. The OBJ file format is a simple data format that represents 3D geometry alone - namely, the position of each vertex, the UV position of each texture coordinate vertex, vertex normals, and the faces that make each polygon defined as a list of vertices, and texture vertices.
It is used for representing three-dimensional data in a format that multiple programs can recognize.
#CONVERT OBJ TO STL FREE ISO#
STP format (Standard for the Exchange of Product Data) is an ISO standard exchange format. The development of STP started in 1984 as a successor of IGES, SET, and VDA-FS. STP is a neutral file format that allows the transfer of files between different CAD software. The file format is open and has been adopted by other 3D graphics application vendors. obj) is a geometry definition file format first developed by Wavefront Technologies for its Advanced Visualizer animation package. Standard for the Exchange of Product model data