- tube (from->x, from->y, from->z,
- to->x, to->y, to->z,
- thickness, cap_size,
- faces, smooth, (!do_atoms || do_shells), wire);
- polys += faces;
+ polys += tube (from->x, from->y, from->z,
+ to->x, to->y, to->z,
+ thickness, cap_size,
+ faces, smooth, (!do_atoms || do_shells), wire);