Pymol

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>> set ray_trace_mode, 2

press "Ray" to show it like under that ! 

# Black and White Script
load /tmp/3fib.pdb;
show cartoon;
set ray_trace_mode, 2;  # black and white cartoon
bg_color white;
set antialias, 2;
ray 600,600
png /tmp/1l9l.png

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