puts "========"
puts "Ray Tracing - check rendering of multi-connected structures"
puts "========"

# create boxes
box b1 0 0 0 1 2 3
box b2 3 0 0 3 2 1

# draw box
vinit View1
vclear
vsetdispmode 1
vraytrace 0
vaxo
vconnectsh b1c -3 0 0 1 0 0 0 0 1 b1 b2
vfit
vrotate 0.2 0.0 0.0
vfit
vclear
vconnectsh b1c -3 0 0 1 0 0 0 0 1 b1 b2

# take snapshot with fixed pipeline
vdump $::imagedir/${::casename}_OFF.png

# turn on ray tracing
vraytrace 1
vdump $::imagedir/${::casename}_rt1.png

vclear
vconnectsh b1c -3 0 0 1 0 0 0 0 1 b1 b2