18 {gml::dvec3{radius, 0.0, 0.0}, gml::dvec3{0.0, radius, 0.0}, gml::dvec3{0.0, 0.0, radius}, slices},
rounded_box_mesh_t(double radius=0.25, const gml::dvec3 &size={0.75, 0.75, 0.75}, int slices=4, const gml::ivec3 &segments={8, 8, 8})
const segment_list * segments