diff options
author | Campbell Barton <ideasman42@gmail.com> | 2013-08-19 14:00:17 +0400 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2013-08-19 14:00:17 +0400 |
commit | 6bdff7e2ad27bd38ee8c419bc66ea20a95fa24b3 (patch) | |
tree | 93c4886e377fbc5960a681f554c72313754196a5 /source/blender/editors | |
parent | f030758515f5b1ecaf4ff9b9454094ec9aae1ffb (diff) |
fix [#36481] When "Rip Edge" cannot be completed, Blender crashes weirdly
Diffstat (limited to 'source/blender/editors')
-rw-r--r-- | source/blender/editors/mesh/editmesh_rip.c | 117 |
1 files changed, 65 insertions, 52 deletions
diff --git a/source/blender/editors/mesh/editmesh_rip.c b/source/blender/editors/mesh/editmesh_rip.c index 1360a180b2d..cbea45e2c2e 100644 --- a/source/blender/editors/mesh/editmesh_rip.c +++ b/source/blender/editors/mesh/editmesh_rip.c @@ -60,23 +60,29 @@ * point and would result in the same distance. */ #define INSET_DEFAULT 0.00001f -static float edbm_rip_edgedist(ARegion *ar, float mat[4][4], - const float co1[3], const float co2[3], const float mvalf[2], - const float inset) +static float edbm_rip_edgedist_squared(ARegion *ar, float mat[4][4], + const float co1[3], const float co2[3], const float mvalf[2], + const float inset) { - float vec1[2], vec2[2]; + float vec1[2], vec2[2], dist_sq; ED_view3d_project_float_v2_m4(ar, co1, vec1, mat); ED_view3d_project_float_v2_m4(ar, co2, vec2, mat); if (inset != 0.0f) { - const float dist = inset / len_v2v2(vec1, vec2); - interp_v2_v2v2(vec1, vec1, vec2, dist); - interp_v2_v2v2(vec2, vec2, vec1, dist); + const float dist_2d = len_v2v2(vec1, vec2); + if (dist_2d > FLT_EPSILON) { + const float dist = inset / dist_2d; + BLI_assert(isfinite(dist)); + interp_v2_v2v2(vec1, vec1, vec2, dist); + interp_v2_v2v2(vec2, vec2, vec1, dist); + } } - /* TODO: use dist_squared_to_line_segment_v2() looks like we only ever use for comparison */ - return dist_to_line_segment_v2(mvalf, vec1, vec2); + dist_sq = dist_squared_to_line_segment_v2(mvalf, vec1, vec2); + BLI_assert(isfinite(dist_sq)); + + return dist_sq; } #if 0 @@ -525,11 +531,11 @@ static int edbm_rip_invoke__vert(bContext *C, wmOperator *op, const wmEvent *eve BMIter iter, liter; BMLoop *l; BMEdge *e, *e2; - BMVert *v, *ripvert = NULL; + BMVert *v; const int totvert_orig = bm->totvert; int i; float projectMat[4][4], fmval[3] = {event->mval[0], event->mval[1]}; - float dist = FLT_MAX; + float dist_sq = FLT_MAX; float d; bool is_wire; @@ -562,15 +568,15 @@ static int edbm_rip_invoke__vert(bContext *C, wmOperator *op, const wmEvent *eve if (v->e) { /* find closest edge to mouse cursor */ BM_ITER_ELEM (e, &iter, v, BM_EDGES_OF_VERT) { - int is_boundary = BM_edge_is_boundary(e); + const bool is_boundary = BM_edge_is_boundary(e); /* consider wire as boundary for this purpose, * otherwise we can't a face away from a wire edge */ totboundary_edge += (is_boundary != 0 || BM_edge_is_wire(e)); if (!BM_elem_flag_test(e, BM_ELEM_HIDDEN)) { if (is_boundary == false && BM_edge_is_manifold(e)) { - d = edbm_rip_edgedist(ar, projectMat, e->v1->co, e->v2->co, fmval, INSET_DEFAULT); - if (d < dist) { - dist = d; + d = edbm_rip_edgedist_squared(ar, projectMat, e->v1->co, e->v2->co, fmval, INSET_DEFAULT); + if ((e2 == NULL) || (d < dist_sq)) { + dist_sq = d; e2 = e; } } @@ -596,10 +602,9 @@ static int edbm_rip_invoke__vert(bContext *C, wmOperator *op, const wmEvent *eve float l_mid_co[3]; l = l_all[i1]; edbm_calc_loop_co(l, l_mid_co); - d = edbm_rip_edgedist(ar, projectMat, l->v->co, l_mid_co, fmval, INSET_DEFAULT); - - if (d < dist) { - dist = d; + d = edbm_rip_edgedist_squared(ar, projectMat, l->v->co, l_mid_co, fmval, INSET_DEFAULT); + if ((e2 == NULL) || (d < dist_sq)) { + dist_sq = d; /* find the edge that is not in this loop */ e2 = NULL; @@ -647,7 +652,7 @@ static int edbm_rip_invoke__vert(bContext *C, wmOperator *op, const wmEvent *eve BM_select_history_remove(bm, ese.ele); } - dist = FLT_MAX; + dist_sq = FLT_MAX; /* in the loop below we find the best vertex to drag based on its connected geometry, * either by its face corner, or connected edge (when no faces are attached) */ @@ -658,12 +663,12 @@ static int edbm_rip_invoke__vert(bContext *C, wmOperator *op, const wmEvent *eve BM_ITER_ELEM (l, &iter, vout[i], BM_LOOPS_OF_VERT) { if (!BM_elem_flag_test(l->f, BM_ELEM_HIDDEN)) { float l_mid_co[3]; - edbm_calc_loop_co(l, l_mid_co); - d = edbm_rip_edgedist(ar, projectMat, v->co, l_mid_co, fmval, INSET_DEFAULT); + edbm_calc_loop_co(l, l_mid_co); + d = edbm_rip_edgedist_squared(ar, projectMat, v->co, l_mid_co, fmval, INSET_DEFAULT); - if (d < dist) { - dist = d; + if (d < dist_sq) { + dist_sq = d; vi_best = i; } } @@ -674,12 +679,12 @@ static int edbm_rip_invoke__vert(bContext *C, wmOperator *op, const wmEvent *eve BM_ITER_ELEM (e, &iter, vout[i], BM_EDGES_OF_VERT) { if (!BM_elem_flag_test(e, BM_ELEM_HIDDEN)) { float e_mid_co[3]; - mid_v3_v3v3(e_mid_co, e->v1->co, e->v2->co); - d = edbm_rip_edgedist(ar, projectMat, v->co, e_mid_co, fmval, INSET_DEFAULT); + mid_v3_v3v3(e_mid_co, e->v1->co, e->v2->co); + d = edbm_rip_edgedist_squared(ar, projectMat, v->co, e_mid_co, fmval, INSET_DEFAULT); - if (d < dist) { - dist = d; + if (d < dist_sq) { + dist_sq = d; vi_best = i; } } @@ -730,19 +735,36 @@ static int edbm_rip_invoke__vert(bContext *C, wmOperator *op, const wmEvent *eve /* rip two adjacent edges */ if (BM_edge_is_boundary(e2) || BM_vert_face_count(v) == 2) { /* Don't run the edge split operator in this case */ + BMVert *v_rip; + + l = BM_edge_vert_share_loop(e2->l, v); - BM_elem_flag_enable(e2, BM_ELEM_TAG); /* only for face-fill (we don't call the operator) */ + /* only tag for face-fill (we don't call the operator) */ + if (BM_edge_is_boundary(e2)) { + BM_elem_flag_enable(e2, BM_ELEM_TAG); + } + else { + BM_elem_flag_enable(l->e, BM_ELEM_TAG); + BM_elem_flag_enable(l->prev->e, BM_ELEM_TAG); + } /* keep directly before edgesplit */ if (do_fill) { fill_uloop_pairs = edbm_tagged_loop_pairs_to_fill(bm); } - l = e2->l; - ripvert = BM_face_vert_separate(bm, l->f, v); +#if 0 + v_rip = BM_face_vert_separate(bm, l->f, v); +#else + v_rip = BM_face_loop_separate(bm, l); +#endif + + BLI_assert(v_rip); - BLI_assert(ripvert); - if (!ripvert) { + if (v_rip) { + BM_vert_select_set(bm, v_rip, true); + } + else { if (fill_uloop_pairs) MEM_freeN(fill_uloop_pairs); return OPERATOR_CANCELLED; } @@ -769,37 +791,28 @@ static int edbm_rip_invoke__vert(bContext *C, wmOperator *op, const wmEvent *eve BM_mesh_edgesplit(em->bm, true, true, true); } - dist = FLT_MAX; + dist_sq = FLT_MAX; { /* --- select which vert --- */ BMVert *v_best = NULL; - float l_prev_co[3], l_next_co[3], l_corner_co[3]; - float scale; + float l_corner_co[3]; - dist = FLT_MAX; + dist_sq = FLT_MAX; BM_ITER_MESH (v, &iter, bm, BM_VERTS_OF_MESH) { if (BM_elem_flag_test(v, BM_ELEM_SELECT)) { /* disable by default, re-enable winner at end */ BM_vert_select_set(bm, v, false); + BM_select_history_remove(bm, v); BM_ITER_ELEM (l, &liter, v, BM_LOOPS_OF_VERT) { - /* calculate a point in the face, rather then calculate the middle, - * make a vector pointing between the 2 edges attached to this loop */ - sub_v3_v3v3(l_prev_co, l->prev->v->co, l->v->co); - sub_v3_v3v3(l_next_co, l->next->v->co, l->v->co); - - scale = normalize_v3(l_prev_co) + normalize_v3(l_next_co); - mul_v3_fl(l_prev_co, scale); - mul_v3_fl(l_next_co, scale); - - add_v3_v3v3(l_corner_co, l_prev_co, l_next_co); - add_v3_v3(l_corner_co, l->v->co); - d = edbm_rip_edgedist(ar, projectMat, l->v->co, l_corner_co, fmval, INSET_DEFAULT); - if (d < dist) { + /* check if v_best is null in the _rare_ case there are numeric issues */ + edbm_calc_loop_co(l, l_corner_co); + d = edbm_rip_edgedist_squared(ar, projectMat, l->v->co, l_corner_co, fmval, INSET_DEFAULT); + if ((v_best == NULL) || (d < dist_sq)) { v_best = v; - dist = d; + dist_sq = d; } } } @@ -965,7 +978,7 @@ static int edbm_rip_invoke(bContext *C, wmOperator *op, const wmEvent *event) BMesh *bm = em->bm; BMIter iter; BMEdge *e; - int singlesel = (bm->totvertsel == 1 && bm->totedgesel == 0 && bm->totfacesel == 0); + const bool singlesel = (bm->totvertsel == 1 && bm->totedgesel == 0 && bm->totfacesel == 0); int ret; /* running in face mode hardly makes sense, so convert to region loop and rip */ |