This topic presents a table that lists 3ds Max objects and the IGES ID and IGES Type they translate to when you export them. Any 3ds Max objects not listed here do not export.
| 3ds Max object | IGES entity name | IGES entity number | 
|---|---|---|
| Surface | Rational B-spline Surface | 128 | 
| NURBS Surface | Bounded Surface | 143 | 
| Trimmed Surface | Bounded Surface | 143/144 | 
| Curve | Rational B-spline Curve | 126 | 
| Point | Point | 116 | 
| Group | Group | 402:7 | 
| Instance | Subfigure Definition | 308 | 
| Instance(s) | Subfigure Definition(s) | 408 | 
When 3ds Max exports IGES, it supports name and color mappings to IGES names and colors.
Since IGES requires unique names per element, 3ds Max will append a unique identifier to multiple objects with the same name.