Structure Synth is now able to export boxes to Sunflow. That was actually a lot harder than spheres.
Sunflow has some amazing global illumination lightning, but why doesn’t it have a ‘box’ primitive in its scene graph language? I mean, it has Banchoff Surfaces, tori and teapots, but not a simple box?
By the way, for those who really dig boxes, check out the Flickr Boxclub (a few Structure Synth creations may also be spotted there).