static void update_cb(PBVHNode *node, void *rebuild)
{
BKE_pbvh_node_mark_update(node);
if (*((int *)rebuild))
BKE_pbvh_node_mark_rebuild_draw(node);
BKE_pbvh_node_fully_hidden_set(node, 0);
}
static void partialvis_update_mesh(Object *ob,
PBVH *pbvh,
PBVHNode *node,
PartialVisAction action,
PartialVisArea area,
float planes[4][4])
{
Mesh *me = ob->data;
MVert *mvert;
float *paint_mask;
int *vert_indices;
int totvert, i;
bool any_changed = false, any_visible = false;
BKE_pbvh_node_num_verts(pbvh, node, NULL, &totvert);
BKE_pbvh_node_get_verts(pbvh, node, &vert_indices, &mvert);
paint_mask = CustomData_get_layer(&me->vdata, CD_PAINT_MASK);
sculpt_undo_push_node(ob, node, SCULPT_UNDO_HIDDEN);
for (i = 0; i < totvert; i++) {
MVert *v = &mvert[vert_indices[i]];
float vmask = paint_mask ? paint_mask[vert_indices[i]] : 0;
/* hide vertex if in the hide volume */
if (is_effected(area, planes, v->co, vmask)) {
if (action == PARTIALVIS_HIDE)
v->flag |= ME_HIDE;
else
v->flag &= ~ME_HIDE;
any_changed = true;
}
if (!(v->flag & ME_HIDE))
any_visible = true;
}
if (any_changed) {
BKE_pbvh_node_mark_rebuild_draw(node);
BKE_pbvh_node_fully_hidden_set(node, !any_visible);
}
}
/* Hide or show elements in multires grids with a special GridFlags
* customdata layer. */
static void partialvis_update_grids(Object *ob,
PBVH *pbvh,
PBVHNode *node,
PartialVisAction action,
PartialVisArea area,
float planes[4][4])
{
CCGElem **grids;
CCGKey key;
BLI_bitmap **grid_hidden;
int *grid_indices, totgrid, i;
bool any_changed = false, any_visible = false;
/* get PBVH data */
BKE_pbvh_node_get_grids(pbvh, node,
&grid_indices, &totgrid, NULL, NULL,
&grids, NULL);
grid_hidden = BKE_pbvh_grid_hidden(pbvh);
BKE_pbvh_get_grid_key(pbvh, &key);
sculpt_undo_push_node(ob, node, SCULPT_UNDO_HIDDEN);
for (i = 0; i < totgrid; i++) {
int any_hidden = 0;
int g = grid_indices[i], x, y;
BLI_bitmap *gh = grid_hidden[g];
if (!gh) {
switch (action) {
case PARTIALVIS_HIDE:
/* create grid flags data */
gh = grid_hidden[g] = BLI_BITMAP_NEW(key.grid_area,
"partialvis_update_grids");
break;
case PARTIALVIS_SHOW:
/* entire grid is visible, nothing to show */
continue;
}
}
else if (action == PARTIALVIS_SHOW && area == PARTIALVIS_ALL) {
/* special case if we're showing all, just free the
* grid */
MEM_freeN(gh);
grid_hidden[g] = NULL;
any_changed = true;
any_visible = true;
continue;
}
for (y = 0; y < key.grid_size; y++) {
for (x = 0; x < key.grid_size; x++) {
CCGElem *elem = CCG_grid_elem(&key, grids[g], x, y);
const float *co = CCG_elem_co(&key, elem);
float mask = key.has_mask ? *CCG_elem_mask(&key, elem) : 0.0f;
/* skip grid element if not in the effected area */
if (is_effected(area, planes, co, mask)) {
/* set or clear the hide flag */
BLI_BITMAP_MODIFY(gh, y * key.grid_size + x,
action == PARTIALVIS_HIDE);
any_changed = true;
}
/* keep track of whether any elements are still hidden */
if (BLI_BITMAP_GET(gh, y * key.grid_size + x))
any_hidden = true;
else
any_visible = true;
}
}
/* if everything in the grid is now visible, free the grid
* flags */
if (!any_hidden) {
MEM_freeN(gh);
grid_hidden[g] = NULL;
}
}
/* mark updates if anything was hidden/shown */
if (any_changed) {
BKE_pbvh_node_mark_rebuild_draw(node);
BKE_pbvh_node_fully_hidden_set(node, !any_visible);
multires_mark_as_modified(ob, MULTIRES_HIDDEN_MODIFIED);
}
}
