forked from bartvdbraak/blender
knife tool modifications
from user freedback it seems there are 2 use cases, both valid. * Select geometry and cut the selection in half (as 2.4x worked) * Point-to-point define the faces to cut, dont cut through everything (only cut what you see). With the second, since you are already selecting the edges to cut and snapping to them. only cutting the selecting is limiting/annoying. Modifying these options while the knife tool runs doesn't work well, so expose under 2 keys, K, Shift-K.
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@ -142,6 +142,14 @@ class VIEW3D_PT_tools_meshedit(View3DPanel, Panel):
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col.operator("mesh.spin")
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col.operator("mesh.screw")
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row = col.row(align=True)
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props = row.operator("mesh.knife_tool", text="Knife")
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props.use_occlude_geometry = True
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props.only_select = False
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props = row.operator("mesh.knife_tool", text="Select")
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props.use_occlude_geometry = False
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props.only_select = True
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col = layout.column(align=True)
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col.label(text="Remove:")
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col.menu("VIEW3D_MT_edit_mesh_delete")
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@ -104,8 +104,16 @@ BMBVHTree *BMBVH_NewBVH(BMEditMesh *em, int flag, Scene *scene, Object *obedit)
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tree->bm = em->bm;
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tree->epsilon = FLT_EPSILON * 2.0f;
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tree->flag = flag;
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if (flag & BMBVH_RESPECT_HIDDEN) {
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if (flag & (BMBVH_RESPECT_SELECT)) {
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tottri = 0;
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for (i = 0; i < em->tottri; i++) {
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if (BM_elem_flag_test(em->looptris[i][0]->f, BM_ELEM_SELECT)) {
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tottri++;
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}
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}
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}
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else if (flag & (BMBVH_RESPECT_HIDDEN)) {
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tottri = 0;
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for (i = 0; i < em->tottri; i++) {
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if (!BM_elem_flag_test(em->looptris[i][0]->f, BM_ELEM_HIDDEN)) {
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@ -146,7 +154,14 @@ BMBVHTree *BMBVH_NewBVH(BMEditMesh *em, int flag, Scene *scene, Object *obedit)
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for (i = 0; i < em->tottri; i++) {
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if (flag & BMBVH_RESPECT_HIDDEN) {
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if (flag & BMBVH_RESPECT_SELECT) {
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/* note, the arrays wont allign now! take care */
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if (!BM_elem_flag_test(em->looptris[i][0]->f, BM_ELEM_SELECT)) {
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continue;
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}
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}
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else if (flag & BMBVH_RESPECT_HIDDEN) {
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/* note, the arrays wont allign now! take care */
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if (BM_elem_flag_test(em->looptris[i][0]->f, BM_ELEM_HIDDEN)) {
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continue;
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@ -64,7 +64,8 @@ struct BMVert *BMBVH_FindClosestVert(struct BMBVHTree *tree, float *co, float ma
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enum {
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BMBVH_USE_CAGE = 1, /* project geometry onto modifier cage */
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BMBVH_RETURN_ORIG = 2, /* use with BMBVH_USE_CAGE, returns hits in relation to original geometry */
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BMBVH_RESPECT_HIDDEN = 4
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BMBVH_RESPECT_SELECT = 4, /* restrict to hidden geometry (overrides BMBVH_RESPECT_HIDDEN) */
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BMBVH_RESPECT_HIDDEN = 8 /* omit hidden geometry */
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};
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#endif /* __EDITBMESH_BVH_H__ */
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@ -71,8 +71,6 @@
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#define KMAXDIST 10 /* max mouse distance from edge before not detecting it */
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#define USE_SELECTED_ONLY
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/* knifetool operator */
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typedef struct KnifeVert {
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BMVert *v; /* non-NULL if this is an original vert */
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@ -159,8 +157,13 @@ typedef struct knifetool_opdata {
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BLI_mempool *refs;
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float projmat[4][4];
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int is_ortho;
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int cut_through;
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short is_ortho;
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/* operatpr options */
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char cut_through; /* preference, can be modified at runtime (that feature may go) */
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char only_select; /* set on initialization */
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float clipsta, clipend;
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enum {
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@ -733,15 +736,6 @@ static void knife_add_cut(knifetool_opdata *kcd)
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if (len_v3v3(kcd->cur.cage, lh->realhit) < FLT_EPSILON * 80)
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continue;
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#if 0 /* not working perfect, ignore for now */
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#ifdef USE_SELECTED_ONLY
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/* don't mess up logic by skipping too early */
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if (lh->kfe->e && !BM_elem_flag_test(lh->kfe->e, BM_ELEM_SELECT)) {
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continue;
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}
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#endif
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#endif
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if (kcd->prev.is_space) {
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kcd->prev.is_space = 0;
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copy_v3_v3(kcd->prev.co, lh->hit);
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@ -976,13 +970,6 @@ static void knifetool_draw(const bContext *C, ARegion *UNUSED(ar), void *arg)
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lh = kcd->linehits;
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for (i = 0; i < kcd->totlinehit; i++, lh++) {
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float sv1[3], sv2[3];
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int do_draw = TRUE;
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#ifdef USE_SELECTED_ONLY
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if (!BM_elem_flag_test(lh->f, BM_ELEM_SELECT)) {
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do_draw = FALSE;
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}
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#endif
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knife_project_v3(kcd, lh->kfe->v1->cageco, sv1);
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knife_project_v3(kcd, lh->kfe->v2->cageco, sv2);
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@ -990,12 +977,12 @@ static void knifetool_draw(const bContext *C, ARegion *UNUSED(ar), void *arg)
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if (len_v2v2(lh->schit, sv1) < kcd->vthresh / 4.0f) {
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copy_v3_v3(lh->cagehit, lh->kfe->v1->cageco);
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if (do_draw) glVertex3fv(lh->cagehit);
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glVertex3fv(lh->cagehit);
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lh->v = lh->kfe->v1;
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}
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else if (len_v2v2(lh->schit, sv2) < kcd->vthresh / 4.0f) {
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copy_v3_v3(lh->cagehit, lh->kfe->v2->cageco);
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if (do_draw) glVertex3fv(lh->cagehit);
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glVertex3fv(lh->cagehit);
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lh->v = lh->kfe->v2;
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}
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}
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@ -1007,13 +994,6 @@ static void knifetool_draw(const bContext *C, ARegion *UNUSED(ar), void *arg)
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glBegin(GL_POINTS);
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lh = kcd->linehits;
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for (i = 0; i < kcd->totlinehit; i++, lh++) {
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#ifdef USE_SELECTED_ONLY
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if (!BM_elem_flag_test(lh->f, BM_ELEM_SELECT)) {
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continue;
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}
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#endif
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glVertex3fv(lh->cagehit);
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}
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glEnd();
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@ -2655,11 +2635,11 @@ static void knife_make_cuts(knifetool_opdata *kcd)
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for (lst = BLI_smallhash_iternew(ehash, &hiter, (uintptr_t *)&e); lst;
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lst = BLI_smallhash_iternext(&hiter, (uintptr_t *)&e))
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{
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#ifdef USE_SELECTED_ONLY
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if (!BM_elem_flag_test(e, BM_ELEM_SELECT)) {
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continue;
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if (kcd->only_select) {
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if (!BM_elem_flag_test(e, BM_ELEM_SELECT)) {
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continue;
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}
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}
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#endif
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sort_by_frac_along(lst, e);
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for (ref = lst->first; ref; ref = ref->next) {
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@ -2673,11 +2653,12 @@ static void knife_make_cuts(knifetool_opdata *kcd)
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for (lst = BLI_smallhash_iternew(fhash, &hiter, (uintptr_t *)&f); lst;
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lst = BLI_smallhash_iternext(&hiter, (uintptr_t *)&f))
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{
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#ifdef USE_SELECTED_ONLY
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if (!BM_elem_flag_test(f, BM_ELEM_SELECT)) {
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continue;
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if (kcd->only_select) {
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if (!BM_elem_flag_test(f, BM_ELEM_SELECT)) {
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continue;
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}
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}
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#endif
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knife_make_face_cuts(kcd, f, lst);
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}
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@ -2802,6 +2783,7 @@ static int knifetool_init(bContext *C, wmOperator *op, int UNUSED(do_cut))
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DerivedMesh *cage, *final;
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SmallHash shash;
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void *data[3];
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const short only_select = RNA_boolean_get(op->ptr, "only_select");
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/* alloc new customdata */
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kcd = op->customdata = MEM_callocN(sizeof(knifetool_opdata), "knifetool Modal Op Data");
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@ -2827,7 +2809,11 @@ static int knifetool_init(bContext *C, wmOperator *op, int UNUSED(do_cut))
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cage->foreachMappedVert(cage, cage_mapped_verts_callback, data);
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BLI_smallhash_release(&shash);
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kcd->bmbvh = BMBVH_NewBVH(kcd->em, BMBVH_USE_CAGE | BMBVH_RETURN_ORIG | BMBVH_RESPECT_HIDDEN, scene, obedit);
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kcd->bmbvh = BMBVH_NewBVH(kcd->em,
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(BMBVH_USE_CAGE | BMBVH_RETURN_ORIG) |
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(only_select ? BMBVH_RESPECT_SELECT : BMBVH_RESPECT_HIDDEN),
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scene, obedit);
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kcd->arena = BLI_memarena_new(1 << 15, "knife");
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kcd->vthresh = KMAXDIST - 1;
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kcd->ethresh = KMAXDIST;
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@ -2848,6 +2834,7 @@ static int knifetool_init(bContext *C, wmOperator *op, int UNUSED(do_cut))
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/* cut all the way through the mesh if use_occlude_geometry button not pushed */
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kcd->cut_through = !RNA_boolean_get(op->ptr, "use_occlude_geometry");
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kcd->only_select = only_select;
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knife_pos_data_clear(&kcd->cur);
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knife_pos_data_clear(&kcd->prev);
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@ -2939,7 +2926,7 @@ wmKeyMap *knifetool_modal_keymap(wmKeyConfig *keyconf)
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WM_modalkeymap_add_item(keymap, CKEY, KM_PRESS, 0, 0, KNF_MODAL_ANGLE_SNAP_TOGGLE);
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WM_modalkeymap_add_item(keymap, ZKEY, KM_PRESS, 0, 0, KNF_MODAL_CUT_THROUGH_TOGGLE);
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WM_modalkeymap_assign(keymap, "MESH_OT_knifetool");
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WM_modalkeymap_assign(keymap, "MESH_OT_knife_tool");
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return keymap;
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}
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@ -3074,11 +3061,11 @@ static int knifetool_modal(bContext *C, wmOperator *op, wmEvent *event)
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return OPERATOR_RUNNING_MODAL;
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}
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void MESH_OT_knifetool(wmOperatorType *ot)
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void MESH_OT_knife_tool(wmOperatorType *ot)
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{
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/* description */
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ot->name = "Knife Topology Tool";
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ot->idname = "MESH_OT_knifetool";
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ot->idname = "MESH_OT_knife_tool";
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ot->description = "Cut new topology";
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/* callbacks */
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@ -3090,5 +3077,6 @@ void MESH_OT_knifetool(wmOperatorType *ot)
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/* flags */
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ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_BLOCKING;
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RNA_def_boolean(ot->srna, "use_occlude_geometry", 0, "Occlude Geometry", "Only cut the front most geometry");
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RNA_def_boolean(ot->srna, "use_occlude_geometry", TRUE, "Occlude Geometry", "Only cut the front most geometry");
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RNA_def_boolean(ot->srna, "only_select", FALSE, "Only Selected", "Only cut selected geometry");
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}
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@ -209,7 +209,7 @@ void MESH_OT_extrude_faces_indiv(struct wmOperatorType *ot);
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void MESH_OT_edgering_select(struct wmOperatorType *ot);
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void MESH_OT_loopcut(struct wmOperatorType *ot);
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void MESH_OT_knifetool(struct wmOperatorType *ot);
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void MESH_OT_knife_tool(struct wmOperatorType *ot);
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void MESH_OT_bevel(struct wmOperatorType *ot);
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void MESH_OT_bridge_edge_loops(struct wmOperatorType *ot);
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@ -156,7 +156,7 @@ void ED_operatortypes_mesh(void)
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WM_operatortype_append(MESH_OT_select_nth);
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WM_operatortype_append(MESH_OT_vert_connect);
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WM_operatortype_append(MESH_OT_vert_slide);
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WM_operatortype_append(MESH_OT_knifetool);
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WM_operatortype_append(MESH_OT_knife_tool);
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WM_operatortype_append(MESH_OT_bevel);
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@ -347,8 +347,13 @@ void ED_keymap_mesh(wmKeyConfig *keyconf)
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WM_keymap_add_menu(keymap, "VIEW3D_MT_edit_mesh_delete", XKEY, KM_PRESS, 0, 0);
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WM_keymap_add_menu(keymap, "VIEW3D_MT_edit_mesh_delete", DELKEY, KM_PRESS, 0, 0);
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WM_keymap_add_item(keymap, "MESH_OT_knifetool", KKEY, KM_PRESS, 0, 0);
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//RNA_enum_set(WM_keymap_add_item(keymap, "MESH_OT_knife_cut", LEFTMOUSE, KM_PRESS, KM_SHIFT, KKEY)->ptr, "type", 2/*KNIFE_MIDPOINT*/);
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kmi = WM_keymap_add_item(keymap, "MESH_OT_knife_tool", KKEY, KM_PRESS, 0, 0);
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RNA_boolean_set(kmi->ptr, "use_occlude_geometry", TRUE);
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RNA_boolean_set(kmi->ptr, "only_select", FALSE);
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kmi = WM_keymap_add_item(keymap, "MESH_OT_knife_tool", KKEY, KM_PRESS, KM_SHIFT, 0);
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RNA_boolean_set(kmi->ptr, "use_occlude_geometry", FALSE);
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RNA_boolean_set(kmi->ptr, "only_select", TRUE);
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WM_keymap_add_item(keymap, "OBJECT_OT_vertex_parent_set", PKEY, KM_PRESS, KM_CTRL, 0);
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