puts "============"
puts "CR26617: Visualization, Ray Tracing - adopt progressive rendering Path Tracing for rendering stereoscopic pair"
puts "============"
puts ""

pload MODELING VISUALIZATION

# custom shapes
set aShape1 [locate_data_file occ/Top.brep]
set aShape2 [locate_data_file occ/Bottom.brep]

# setup 3D viewer content
vinit name=View1 w=512 h=512
vglinfo

vvbo 0
vsetdispmode 1
vbackground -gradient B4C8FF B4B4B4 -gradientMode VERTICAL
restore $aShape1 s1
restore $aShape2 s2
vdisplay s1 s2
vsetmaterial s1 Silver
vsetmaterial s2 Pewter
vsetlocation s1 0.0 0.1 0.0
vlight -change 0 -dir 0.577 -0.577 -0.577

# activate ray-tracing
vrenderparams -raytrace
vtextureenv on 5
vrenderparams -reflections -gi

# activate stereo
vstereo on
vstereo -mode anaglyph
vcamera -iod 0.1
vfit
vfps 200
vdump ${imagedir}/${casename}.png -stereo blend