puts "========"
puts "Per-fragment lighting using built-in GLSL program, two directional light sources."
puts "Visual comparison with the reference snapshot should be performed for this test case."
puts "========"

# setup viewer
vclear
vclose ALL
vinit View1
vcaps -ffp 0
vrenderparams -shadingModel phong
vlight delete 0
vlight delete 0
vlight delete 0
vlight delete 0
vlight delete 0
vlight add ambient                color WHITE
vlight add directional dir  1 0 0 color GREEN headlight 1
vlight add directional dir -1 0 0 color RED1  headlight 1

# display shape
restore [locate_data_file occ/fuse.brep] f
vaxo
vdisplay f -dispmode 1
vfit
vrotate -0.5 0.0 0.0
vfit