Wavefront .obj file

OBJ (or .OBJ) is a geometry definition <a href="/facts/File_format/qrXbwJaH">file format</a> first developed by <a href="/facts/Wavefront_Technologies/5NR7C1vo">Wavefront Technologies</a> for <a href="/facts/The_Advanced_Visualizer/WUo7cC31">The Advanced Visualizer</a> animation package. It is an <a href="/facts/Open_file_format/TKcCW6mA">open file format</a> and has been adopted by other <a href="/facts/3D_computer_graphics/zlWW6eaF">3D computer graphics</a> application vendors.
The OBJ file format is a simple data-format that represents 3D geometry alone – namely, the position of each <a href="/facts/Vertex_(geometry)/ID3cea9z">vertex</a>, the <a href="/facts/UV_mapping/lzS1855A">UV position</a> of each texture coordinate vertex, <a href="/facts/Vertex_normal/l8b5aISk">vertex normals</a>, and the faces that make each polygon defined as a list of vertices, and texture vertices. Vertices are stored in a counter-clockwise order by default, making explicit declaration of face normals unnecessary. OBJ coordinates have no units, but OBJ files can contain scale information in a human readable comment line.

Wavefront .obj file open-in-new

Wavefront .obj file