Obj

OBJ (or .OBJ) is a geometry definition file format first developed by Wavefront Technologies for its Advanced Visualizer animation package. The file format is open and has been adopted by other 3D graphics application vendors. For the most part it is a universally accepted format. 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, ... more

OBJ (or .OBJ) is a geometry definition file format first developed by Wavefront Technologies for its Advanced Visualizer animation package. The file format is open and has been adopted by other 3D graphics application vendors. For the most part it is a universally accepted format. 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, normals, and the faces that make each polygon defined as a list of vertices, texture vertices, and normals. A typical OBJ file looks like this: An OBJ file also supports smoothing parameters to allow for curved objects, and also the possibility to name groups of polygons. It also supports materials by referring to an external MTL material file. OBJ files, due to their list structure, are able to reference vertices, normals, etc either by their absolute (1-indexed) list position, or relatively by using negative indices and counting backwards.... less