* Revision History:
* 18-Sep-97: 3D version Antti Kuntsi <kuntsi@iki.fi>.
* 20-May-97: Changed the name tri to sierpinski for more compatiblity
* Revision History:
* 18-Sep-97: 3D version Antti Kuntsi <kuntsi@iki.fi>.
* 20-May-97: Changed the name tri to sierpinski for more compatiblity