OpenCascade/occt
1
0
Fork 0
mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-04-03 17:56:21 +03:00
Code Packages Releases Activity

0030221: Data Exchange - VRML is exported with inversed normals

Browse Source 
Added test case bugs/xde/bug30221
This commit is contained in:
skl 2018-10-09 10:57:42 +03:00 committed by apn
parent 1b63268eb2
commit 9b9f2fe972
2 changed files with 29 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/VrmlData/VrmlData_ShapeConvert.cxx
View File

@ -396,11 +396,14 @@ Handle(VrmlData_Geometry) VrmlData_ShapeConvert::triToIndexedFaceSet
(anAlloc->Allocate (nNodes * sizeof(gp_XYZ)));
const TShort_Array1OfShortReal& Norm = theTri->Normals();
Standard_Integer j;
for (i = 0, j = 1; i < nNodes; i++, j += 3) {
for (i = 0, j = 1; i < nNodes; i++, j += 3)
{
gp_XYZ aNormal(Norm(j), Norm(j+1), Norm(j+2));
if (isReverse)
{
aNormal.Reverse();
}
arrVec[i] = aNormal;
}
const Handle(VrmlData_Normal) aNormalNode =
new VrmlData_Normal (myScene, 0L, nNodes, arrVec);

23
tests/bugs/xde/bug30221 Normal file
View File

@ -0,0 +1,23 @@
puts "========"
puts "OCC30221"
puts "========"
puts ""
#################################################################
# Data Exchange - VRML is exported with inversed normals
#################################################################
set FileName bug30221_vmt01b
XOpen [locate_data_file ${FileName}.xbf] D
XShow D
vfit
vsetdispmode 1
vclose
file delete -force ${imagedir}/${FileName}.wrl
WriteVrml D ${imagedir}/${FileName}.wrl
loadvrml a ${imagedir}/${FileName}.wrl
vinit View1
vdisplay -dispMode 1 a
vfit
checkview -screenshot -3d -path ${imagedir}/${test_image}.png