We've discovered that piece2 and piece3 provided with this
distribution don't render properly on some systems.  This is due to
extremely small values of roughness.  To fix, edit the files and
change any roughness value smaller than 0.001 to 0.001.  This should
work on most systems.  We apologize for the inconvenience.


David Buck
dbuck@ccs.carleton.ca

_____________________________________________________________________
| David K. Buck                 | My employer is not responsible for|
| dbuck@ccs.carleton.ca         | my opinions.  In fact, they don't |
| Original author of DKBTrace   | even know I have this account.    |
|_______________________________|___________________________________|