# Original bug : cts20872 
# bis cts20212
# Date : 22 Sept 98

restore [locate_data_file CFE900_cts20gcu.rle] base
restore [locate_data_file cts20872_face.rle] cont

explode base face
copy base_12 funtil

### support
mksurface p12 base_12
mkface f12 p12

featprism base cont cont 0 1 0 0 1
featperform prism result f12

checkprops result -s 829.806