HIGH  |  | |
| Name | GL Transmission Format | STEP |
| File extension | .gltf, .glb | .stp, .step |
| Original software | ||
| Binary | ■ | ■ |
| ASCII | ■ | ■ |
| Polygonal | ■ | |
| NURBS | ■ | |
| Solids | ||
| Smoothing groups | ■ | ■ |
| Textures, materials | ■ | |
| Developer/Owner | Khronos Group | ISO |
| Description | ||
| Specification | Download PDF | |
| Format features | Supports 3D model geometry, appearance, scene graph hierarchy, and animation. A .gltf file may be self-contained or may reference external binary and texture resources, while a .glb file is entirely self-contained | The basic format of the transfer surfaces between CAD-systems. See also IGES |
| Viewing software | Paint 3D, MS Office etc | Delcam Exchange 2012 (free), eDrawings (free) |
