puts "========"
puts "0031302: Visualization, TKOpenGl - wrong tangent space calculation for normal maps"
puts "Test for tangent space orientation."
puts "========"

pload XDE OCAF MODELING VISUALIZATION

# PBR doesn't work with Compatible Profile on macOS
if { $::tcl_platform(os) == "Darwin" } { vcaps -core }

vclear
vclose ALL

vinit v -w 1024 -h 1024
vcamera -persp
vbackground -cubemap [locate_data_file Circus_CubeMap_V.png]
vrenderparams -shadingModel PBR

vlight -clear
vlight -add ambient

Close D -silent
ReadGltf D [locate_data_file bug31302_NormalTangentTest.gltf]
XDisplay -dispmode 1 D

vfront
vfit
vdump $imagedir/${casename}_front.png

vback
vdump $imagedir/${casename}_back.png