HIGH  |  | |
| Name | HOOPS Stream Format | Initial Graphics Exchange Specification |
| File extension | .hsf | .igs, .iges |
| Original software | ||
| Binary | ■ | |
| ASCII | ■ | |
| Polygonal | ■ | |
| NURBS | ■ | |
| Solids | ||
| Smoothing groups | ■ | ■ |
| Textures, materials | ■ | |
| Developer/Owner | Tech Soft 3D | U.S. National Bureau of Standards |
| Description | ||
| Specification | Open HSF doc | Download PDF |
| Format features | One attempt to create « universal » 3D-format for publishing CAD-models. To date, work on improving it stopped | Universal open interchange NURBS-surfaces format. Along with STEP - one of the most popular |
| Viewing software | Hoops Publish | Delcam Exchange 2012 (free), eDrawings (free) |
