box b 10 10 10

box c 4 4 4 
ttranslate c 0 0 6

bfuse rr b c

restore [locate_data_file C1_rr_8.brep] C1_rr_8
prism p1 C1_rr_8 0 0 -4

explode rr so

bop rr_1 p1
boptuc result

checkprops result -s empty
checkview -display result -2d -otherwise { rr_1 p1 } -s -path ${imagedir}/${test_image}.png