2 puts "Ray Tracing - check rendering of multi-connected structures"
12 vrenderparams -rasterization
15 vconnectsh b1c -3 0 0 1 0 0 0 0 1 b1 b2
20 vconnectsh b1c -3 0 0 1 0 0 0 0 1 b1 b2
22 # take snapshot with fixed pipeline
23 vdump $::imagedir/${::casename}_OFF.png
26 vrenderparams -raytrace
27 vdump $::imagedir/${::casename}_rt1.png
30 vconnectsh b1c -3 0 0 1 0 0 0 0 1 b1 b2