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Bevel, fix crash when adjust offsets with inner arc miter. 

Previous assumptions about boundary verts always being attached
to edges are now false.
This commit is contained in:
Howard Trickey 2019-02-08 09:24:43 -05:00
parent 29922b6ff5
commit 2f0dbdea4f
1 changed files with 10 additions and 3 deletions
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13
source/blender/bmesh/tools/bmesh_bevel.c
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@ -2843,11 +2843,15 @@ static void adjust_offsets(BevelParams *bp)
v = vchainstart = vanchor;
iscycle = false;
while (v->eon && !v->visited && !iscycle) {
v->visited = true;
if (!v->efirst)
break;
enext = find_other_end_edge_half(bp, v->efirst, &bvcur);
if (!enext)
break;
BLI_assert(enext != NULL);
vnext = enext->leftv;
v->adjchain = vnext;
v->visited = true;
if (vnext->visited) {
if (vnext != vchainstart) {
break;
@ -2862,12 +2866,15 @@ static void adjust_offsets(BevelParams *bp)
v = vchainstart;
bvcur = bv;
do {
v->visited = true;
if (!v->elast)
break;
enext = find_other_end_edge_half(bp, v->elast, &bvcur);
BLI_assert(enext != NULL);
if (!enext)
break;
vnext = enext->rightv;
vnext->adjchain = v;
vchainstart = vnext;
v->visited = true;
v = vnext;
} while (!v->visited && v->eon);
adjust_the_cycle_or_chain(vchainstart, false);