Vectorworks to Radiance (was: dxf2rad)

IGES is a Vectorworks export option.

I'm not clear what bricad is.

IGES provides you with higher level geometry then the DXF-faces could. brlcad is an open source cad package, coming with converters (im- and export). You can convert IGES to brlcad to OBJ, which should produce very clean OBJ files. Than you can enjoy the great OBJ-support in Radiance, including smooth surfaces and all the neat stuff...

You can script the whole procedure.

CU Lars.