puts "============="
puts "0030434: Visualization, TKV3d - add 'NoUpdate' state of frustum culling optimization"
puts "============="

pload VISUALIZATION
vclear
vinit View1

set THE_NB_POINTS 10
puts "Creating [expr $THE_NB_POINTS * $THE_NB_POINTS * $THE_NB_POINTS] points..."
for {set i 0} {$i < $THE_NB_POINTS} {incr i} {
  for {set j 0} {$j < $THE_NB_POINTS} {incr j} {
    for {set k 0} {$k < $THE_NB_POINTS} {incr k} {
      vpoint p$i$j$k 3.*$i 3.*$j 3.*$k
    }
  }
}

vcamera -ortho
vfront
vfit
vzoom 2
vrenderparams -frustumculling on
vrenderparams -frustumculling noupdate
vfit
if { [vreadpixel 92 92 rgb name] == "YELLOW" } { puts "Error: point should be clipped earlier" }
vdump $::imagedir/${::casename}_ortho_culled.png
vrenderparams -frustumculling off
if { [vreadpixel 92 92 rgb name] != "YELLOW" } { puts "Error: point should NOT be clipped" }
vdump $::imagedir/${::casename}_ortho_all.png

vcamera -persp
vaxo
vfit
vzoom 3
vrenderparams -frustumculling on
vrenderparams -frustumculling noupdate
vfit
if { [vreadpixel 114 92 rgb name] == "YELLOW" } { puts "Error: point should be clipped earlier" }
vdump $::imagedir/${::casename}_persp_culled.png
vrenderparams -frustumculling off
if { [vreadpixel 114 92 rgb name] != "YELLOW" } { puts "Error: point should NOT be clipped" }
vdump $::imagedir/${::casename}_persp_all.png