puts "========"
puts "0032172: Visualization, TKOpenGl - implement simple shadow mapping for a spot light source"
puts "Test shadow map from a spot light source on a box geometry."
puts "========"

pload MODELING VISUALIZATION
if { $::tcl_platform(os) == "Darwin" } { vcaps -core }
box b 1 2 3
box bb -5 -5 0 10 10 0 -preview
vclear
vinit View1
vrenderparams -shadingModel phong
vdisplay -dispMode 1 b bb
vaspects b -material STONE -color blue
vaspects bb -material STONE -color red
vfit
vlight -clear
vlight lamp1 -add spot -castShadows 1 -direction 1 1 -1 -position -10 -10 10 
vlight lamp2 -add spot -castShadows 1 -direction -1 -1 -1 -position 10 10 10 -intensity 1000
vdump $::imagedir/${::casename}_two_spots.png

vlight -remove lamp1

vline lin1 10 10 10 -5 -5 -0.5
vline lin2 10 10 10 -3.5 -5 -0.5
vline lin3 10 10 10 -5 -2 -0.5

if { ![string match "OpenGL ES 2.0*" [vglinfo VERSION]] && ![string match "OpenGL ES 3.0*" [vglinfo VERSION]] } {
  vraytrace 1
  vdump $::imagedir/${::casename}_raytrace.png
}

vraytrace 0
vrenderparams -shadingModel phong
vrenderparams -shadowMapBias 0.001
vdump $::imagedir/${::casename}_phong.png

vrenderparams -shadingModel pbr
vdump $::imagedir/${::casename}_pbr.png