MEDIUM ![]() | ![]() | |
| Name | STEP | Rhino OpenNURBS |
| File extension | .stp, .step | .3dm |
| Original software | Rhinoceros 3D | |
| Binary | ■ | ■ |
| ASCII | ■ | |
| Polygonal | ■ | |
| NURBS | ■ | ■ |
| Solids | ■ | |
| Smoothing groups | ■ | ■ |
| Textures, materials | ■ | |
| Developer/Owner | ISO | Robert McNeel & Associates |
| Description | ||
| Specification | Download PDF | OpenNURBS |
| Format features | The basic format of the transfer surfaces between CAD-systems. See also IGES | The format of the first NURBS-Modeling software for Windows. Is currently open, so there are converters from/to lots of formats |
| Viewing software | Delcam Exchange 2012 (free), eDrawings (free) | Deep View (free) |