puts "========"
puts "0032107: Data Exchange, RWGltf_CafReader - reading glTF document back loses sharing"
puts "========"

vclear
vclose ALL
Close *
source $env(CSF_OCCTSamplesPath)/tcl/vis_pbr_spheres.tcl
vdump "${imagedir}/${casename}_0.png"

set aTmpGltf1  "${imagedir}/${casename}_tmp1.glb"
set aTmpGltf1m "${imagedir}/${casename}_tmp1m.glb"
set aTmpGltf2  "${imagedir}/${casename}_tmp2.glb"
set aTmpGltf2m "${imagedir}/${casename}_tmp2m.glb"
lappend occ_tmp_files $aTmpGltf1
lappend occ_tmp_files $aTmpGltf1m
lappend occ_tmp_files $aTmpGltf2
lappend occ_tmp_files $aTmpGltf2m

WriteGltf D "$aTmpGltf1"
puts [file size "$aTmpGltf1"]
WriteGltf D "$aTmpGltf1m" -mergeFaces
puts [file size "$aTmpGltf1m"]

ReadGltf D1 "$aTmpGltf1"
XGetOneShape s1 D1
checknbshapes s1 -face 26 -compound 22
vclear
XDisplay D1 -dispMode 1
vdump "${imagedir}/${casename}_1.png"

ReadGltf D1m "$aTmpGltf1m"
XGetOneShape s1m D1m
checknbshapes s1m -face 5 -compound 18
vclear
XDisplay D1m -dispMode 1
vdump "${imagedir}/${casename}_1m.png"

WriteGltf D1  "$aTmpGltf2"
puts [file size "$aTmpGltf2"]
WriteGltf D1m "$aTmpGltf2m" -mergeFaces
puts [file size "$aTmpGltf2m"]

ReadGltf D2 "$aTmpGltf2"
XGetOneShape s2 D2
checknbshapes s2 -face 26 -compound 22
vclear
XDisplay D2 -dispMode 1
vdump "${imagedir}/${casename}_2.png"

ReadGltf D2m "$aTmpGltf2m"
XGetOneShape s2m D2m
checknbshapes s2m -face 5 -compound 18
vclear
XDisplay D2m -dispMode 1
vdump "${imagedir}/${casename}_2m.png"