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Fix T42488: Knife (selected_only + occlude) failed

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This commit is contained in:
Campbell Barton 2014-12-09 15:51:58 +01:00
parent 8fe336ce7e
commit 171a6bb5dc
2 changed files with 15 additions and 4 deletions
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1
source/blender/blenlib/BLI_ghash.h
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@ -41,6 +41,7 @@ extern "C" {
#endif
typedef unsigned int (*GHashHashFP) (const void *key);
/** returns false when equal */
typedef bool (*GHashCmpFP) (const void *a, const void *b);
typedef void (*GHashKeyFreeFP) (void *key);
typedef void (*GHashValFreeFP) (void *val);

18
source/blender/editors/mesh/editmesh_knife.c
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@ -1383,6 +1383,11 @@ static void knife_find_line_hits(KnifeTool_OpData *kcd)
ls = (BMLoop **)kcd->em->looptris[result->indexA];
f = ls[0]->f;
set_lowest_face_tri(kcd, f, result->indexA);
/* occlude but never cut unselected faces (when only_select is used) */
if (kcd->only_select && !BM_elem_flag_test(f, BM_ELEM_SELECT)) {
continue;
}
/* for faces, store index of lowest hit looptri in hash */
if (BLI_smallhash_haskey(&faces, (uintptr_t)f)) {
continue;
@ -1590,6 +1595,10 @@ static BMFace *knife_find_closest_face(KnifeTool_OpData *kcd, float co[3], float
f = BKE_bmbvh_ray_cast(kcd->bmbvh, origin, ray, 0.0f, NULL, co, cageco);
if (f && kcd->only_select && BM_elem_flag_test(f, BM_ELEM_SELECT) == 0) {
f = NULL;
}
if (is_space)
*is_space = !f;
@ -2760,10 +2769,11 @@ static void knifetool_init(bContext *C, KnifeTool_OpData *kcd,
kcd->cagecos = (const float (*)[3])BKE_editmesh_vertexCos_get(kcd->em, scene, NULL);
kcd->bmbvh = BKE_bmbvh_new_from_editmesh(kcd->em,
BMBVH_RETURN_ORIG |
(only_select ? BMBVH_RESPECT_SELECT : BMBVH_RESPECT_HIDDEN),
kcd->cagecos, false);
kcd->bmbvh = BKE_bmbvh_new_from_editmesh(
kcd->em,
BMBVH_RETURN_ORIG |
((only_select && cut_through) ? BMBVH_RESPECT_SELECT : BMBVH_RESPECT_HIDDEN),
kcd->cagecos, false);
kcd->arena = BLI_memarena_new(MEM_SIZE_OPTIMAL(1 << 15), "knife");
kcd->vthresh = KMAXDIST - 1;