Revision: 73830
http://sourceforge.net/p/brlcad/code/73830
Author: starseeker
Date: 2019-09-04 19:38:30 +0000 (Wed, 04 Sep 2019)
Log Message:
-----------
flip the normals if the face is reversed
Modified Paths:
--------------
brlcad/trunk/src/libbrep/cdt_util.cpp
Modified: brlcad/trunk/src/libbrep/cdt_util.cpp
===================================================================
--- brlcad/trunk/src/libbrep/cdt_util.cpp 2019-09-04 19:19:08 UTC (rev
73829)
+++ brlcad/trunk/src/libbrep/cdt_util.cpp 2019-09-04 19:38:30 UTC (rev
73830)
@@ -471,15 +471,18 @@
for (tr_it = tris.begin(); tr_it != tris.end(); tr_it++) {
for (size_t j = 0; j < 3; j++) {
ON_3dPoint *p3d = fmesh->pnts[(*tr_it).v[j]];
- ON_3dPoint *onorm = NULL;
+ ON_3dPoint onorm;
if (s->singular_vert_to_norms->find(p3d) !=
s->singular_vert_to_norms->end()) {
// Use calculated normal for singularity points
- onorm = (*s->singular_vert_to_norms)[p3d];
+ onorm = *(*s->singular_vert_to_norms)[p3d];
} else {
- onorm = fmesh->normals[fmesh->nmap[(*tr_it).v[j]]];
+ onorm = *fmesh->normals[fmesh->nmap[(*tr_it).v[j]]];
}
VSET(pt[j], p3d->x, p3d->y, p3d->z);
- VSET(nv[j], onorm->x, onorm->y, onorm->z);
+ if (fmesh->m_bRev) {
+ onorm = -1 * onorm;
+ }
+ VSET(nv[j], onorm.x, onorm.y, onorm.z);
}
//tri one
BN_ADD_VLIST(vlfree, vhead, nv[0], BN_VLIST_TRI_START);
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