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Face Sets Topology: Initial loop iteration implementation (one side only)

This commit is contained in:
Pablo Dobarro 2021-03-16 22:48:31 +01:00
parent 525badbd7d
commit 02d482e8f2
1 changed files with 55 additions and 2 deletions
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57
source/blender/editors/sculpt_paint/sculpt_face_set_topology.c
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@ -97,6 +97,43 @@ static EnumPropertyItem prop_sculpt_face_set_by_topology[] = {
};
#define SCULPT_FACE_SET_LOOP_STEP_NONE -1
static bool sculpt_face_set_loop_step(SculptSession *ss, const int from_poly, const int edge, int *r_next_poly) {
if (!ss->epmap) {
return false;
}
int next_poly = SCULPT_FACE_SET_LOOP_STEP_NONE;
for (int i = 0; i < ss->epmap[edge].count; i++) {
if (ss->epmap[edge].indices[i] != from_poly) {
next_poly = ss->epmap[edge].indices[i];
}
}
if (next_poly == SCULPT_FACE_SET_LOOP_STEP_NONE) {
return false;
}
}
static int sculpt_face_set_loop_opposite_edge_in_quad(SculptSession *ss, const int poly, const int edge) {
if (ss->mpoly[poly].totloop != 4) {
return edge;
}
int edge_index_in_poly = 0;
for (int i = 0; i < ss->mpoly[poly].totloop; i++) {
if (edge == ss->mloop[ss->mpoly[poly].loopstart + i].e) {
edge_index_in_poly = i;
break;
}
}
const int next_edge_index_in_poly = (edge_index_in_poly + 2) % 4;
return ss->mloop[ss->mpoly[poly].loopstart + next_edge_index_in_poly].e;
}
static void sculpt_face_set_by_topology_poly_loop(Object *ob, const int next_face_set_id) {
SculptSession *ss = ob->sculpt;
Mesh *mesh = BKE_object_get_original_mesh(ob);
@ -142,10 +179,26 @@ static void sculpt_face_set_by_topology_poly_loop(Object *ob, const int next_fac
}
}
ss->face_sets[ss->active_face_index] = next_face_set_id;
int current_poly = ss->active_face_index;
int current_edge = initial_edge_index;
int next_poly = SCULPT_FACE_SET_LOOP_STEP_NONE;
while(sculpt_face_set_loop_step(ss, current_poly, current_edge, &next_poly)) {
if (ss->face_sets[next_poly] == next_face_set_id) {
break;
}
if (ss->face_sets[next_poly] < 0) {
break;
}
if (ss->mpoly[next_poly].totloop != 4) {
break;
}
ss->face_sets[next_poly] = next_face_set_id;
current_edge = sculpt_face_set_loop_opposite_edge_in_quad(ss, next_poly, current_edge);
current_poly = next_poly;
}
}
static int sculpt_face_set_by_topology_invok(bContext *C, wmOperator *op, const wmEvent *event)