puts "========"
puts "0030953: Data Exchange - implement export of mesh data into glTF 2.0 format"
puts "Test case exporting glTF model into glTF file."
puts "========"

Close D1 -silent
XNewDoc D1
XSetLengthUnit D1 cm
ReadGltf D1 [locate_data_file bug30691_DamagedHelmet.gltf] -nocreatedoc
XGetOneShape s1 D1
set aLProps1 [uplevel #0 sprops $s1]

set aTmpGltfBase "${imagedir}/${casename}_tmp"
set aTmpGltf "${aTmpGltfBase}.gltf"
lappend occ_tmp_files $aTmpGltf
lappend occ_tmp_files "${aTmpGltfBase}.bin"
lappend occ_tmp_files "${aTmpGltfBase}_textures"

WriteGltf D1 "$aTmpGltf"

Close D -silent
XNewDoc D
XSetLengthUnit D cm
ReadGltf D "$aTmpGltf" -nocreatedoc

XGetOneShape s D
set aLProps2 [uplevel #0 sprops $s]
checknbshapes s -face 1 -compound 0
checktrinfo s -tri 15452 -nod 14556
regexp {Mass\s:\s*([0-9\.]+)} $aLProps1 dummy anArea1
regexp {Mass\s:\s*([0-9\.]+)} $aLProps2 dummy anArea2
if {abs($anArea1 - $anArea2) > 1e-8 * $anArea1} {
  puts "Error: invalid area $anArea1 instead of $anArea2"
}

set THE_REF_DUMP {
INSTANCE FACE 0:1:1:1 (refers to 0:1:1:2) "node_damagedHelmet_-6514"
PART FACE 0:1:1:2 "mesh_helmet_LP_13930damagedHelmet"

Free Shapes: 1
INSTANCE FACE  0:1:1:1 (refers to 0:1:1:2) "node_damagedHelmet_-6514"
}
checkXDump D $THE_REF_DUMP