Flickerstreak wrote: ++++++++++++++++++++ Bryce Primitives (cube, sphere, etc.) and rocks: export as .obj only. This is a proprietary (and indecipherable) Bryce format. Other programs cannot use this. ++++++++++++++++++++ A couple of errors there, one probably a typo, the other just incorrect. Bryce's proprietary format is obp, not obj. Bryce rocks are meshes and can be exported in any of the formats that Bryce(4) exports to, using the method described above. The Bryce export facility isn't 'hidden' as such; it's just an unsupported feature. It was probably developed too late to include as part of the official release, and that would explain its absence from the manual, etc. The programmers 'leaked' the info so's that users could benefit. I've always found it very stable, and never had any difficulty exporting items that were ungrouped, regrouped, and even combined with other meshes.