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change edge split modifier to loop over all edges and compare the face angles, rather then looping over all faces and looking at every faces-edges-fance which would compare faces twice.

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Campbell Barton 2011-11-28 03:41:14 +00:00
parent 8aeaa442bc
commit 9776f56a39
1 changed files with 9 additions and 13 deletions
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22
source/blender/modifiers/intern/MOD_edgesplit.c
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@ -67,9 +67,7 @@ static DerivedMesh *doEdgeSplit(DerivedMesh *dm, EdgeSplitModifierData *emd, Obj
BMesh *bm;
BMEditMesh *em;
DerivedMesh *cddm;
BMIter iter, liter;
BMFace *f;
BMLoop *l;
BMIter iter;
BMEdge *e;
/* int allocsize[] = {512, 512, 2048, 512}; */ /* UNUSED */
float threshold = cos((emd->split_angle + 0.00001) * M_PI / 180.0);
@ -85,16 +83,14 @@ static DerivedMesh *doEdgeSplit(DerivedMesh *dm, EdgeSplitModifierData *emd, Obj
BMO_push(bm, NULL);
if (emd->flags & MOD_EDGESPLIT_FROMANGLE) {
BM_ITER(f, &iter, bm, BM_FACES_OF_MESH, NULL) {
BM_ITER(l, &liter, bm, BM_LOOPS_OF_FACE, f) {
float edge_angle_cos;
if (l->radial_next == l)
continue;
edge_angle_cos = dot_v3v3(f->no, l->radial_next->f->no);
if (edge_angle_cos < threshold) {
BMO_SetFlag(bm, l->e, EDGE_MARK);
BM_ITER(e, &iter, bm, BM_EDGES_OF_MESH, NULL) {
/* check for 1 edge having 2 face users */
BMLoop *l1, *l2;
if ( (l1= e->l) &&
(l2= e->l->radial_next) != l1)
{
if (dot_v3v3(l1->f->no, l2->f->no) < threshold) {
BMO_SetFlag(bm, e, EDGE_MARK);
}
}
}