# basement.r3d (same as floor.r3d except that y coords are lower)
#
# Plane running underneath the center of the scene,
# in transformation-free coordinates so that it can be mixed with
# most existing scene descriptions.
#
15
6
-1.0 -0.1 -1.0   0.0 -4.0 3.0   1.0 -0.1 -1.0   0.0 0.1 1.0
9