GLTF to OBJ
Please find below the list of our other useful resources related to GLTF and OBJ interoperability and exchange that could help you with the GLTF to OBJ conversion.
GLTF File
GLTF (Graphics Language Transmission Format) file format is developed and maintained by the Khronos Group organisation. There are currently two versions of GLTF file format, the first 1.0 and the newest one 2.0, with the preference for the version 2.0 as it is more recent. By default a GLTF file is saved in an ASCII text mode. To save a GLTF file in a binary mode with all referenced texture images a GLB file extension should be used instead of a GLTF. The import and export of GLTF and GLB files is fully supported by our Autoconverter and Automesher Application conversion tools.
OBJ File
OBJ (Alias Wavefront Object) is a text-based file format for 3D geometry objects which is very popular and widely supported by many 3D software programs. The OBJ file format is capable of storing named group objects, surface materials with transparent colors and texture images, and quads or triangles as geometry primitives. However, our Autoconverter software will simplify every OBJ quad primitive with two triangles as only triangular facets are supported during the OBJ file conversion. It's important to mention that due to a textual format OBJ files will always be much bigger than the binary files, e.g. 3DS (3D Studio) or SKP (SketchUp).