Hiding support for dynamic topology

1 files changed, 72 insertions, 0 deletions

diff --git a/source/blender/editors/sculpt_paint/paint_hide.c b/source/blender/editors/sculpt_paint/paint_hide.c
index 36fe4715fc0..9cc908746e8 100644
--- a/source/blender/editors/sculpt_paint/paint_hide.c
+++ b/source/blender/editors/sculpt_paint/paint_hide.c
@@ -232,6 +232,75 @@ static void partialvis_update_grids(Object *ob,
 	}
 }
 
+static void partialvis_update_bmesh_verts(BMesh *bm,
+										  GHash *verts,
+										  PartialVisAction action,
+										  PartialVisArea area,
+										  float planes[4][4],
+										  int *any_changed,
+										  int *any_visible)
+{
+	GHashIterator gh_iter;
+
+	GHASH_ITER (gh_iter, verts) {
+		BMVert *v = BLI_ghashIterator_getKey(&gh_iter);
+		float *vmask = CustomData_bmesh_get(&bm->vdata,
+											v->head.data,
+											CD_PAINT_MASK);
+
+		/* hide vertex if in the hide volume */
+		if (is_effected(area, planes, v->co, *vmask)) {
+			if (action == PARTIALVIS_HIDE)
+				BM_elem_flag_enable(v, BM_ELEM_HIDDEN);
+			else
+				BM_elem_flag_disable(v, BM_ELEM_HIDDEN);
+			(*any_changed) = TRUE;
+		}
+
+		if (!BM_elem_flag_test(v, BM_ELEM_HIDDEN))
+			(*any_visible) = TRUE;
+	}
+}
+
+static void partialvis_update_bmesh(Object *ob,
+									PBVH *pbvh,
+									PBVHNode *node,
+									PartialVisAction action,
+									PartialVisArea area,
+									float planes[4][4])
+{
+	BMesh *bm;
+	GHash *unique, *other;
+	int any_changed = 0, any_visible = 0;
+
+	bm = BLI_pbvh_get_bmesh(pbvh);
+	unique = BLI_pbvh_bmesh_node_unique_verts(node);
+	other = BLI_pbvh_bmesh_node_other_verts(node);
+
+	sculpt_undo_push_node(ob, node, SCULPT_UNDO_HIDDEN);
+
+	partialvis_update_bmesh_verts(bm,
+								  unique,
+								  action,
+								  area,
+								  planes,
+								  &any_changed,
+								  &any_visible);
+
+	partialvis_update_bmesh_verts(bm,
+								  other,
+								  action,
+								  area,
+								  planes,
+								  &any_changed,
+								  &any_visible);
+
+	if (any_changed) {
+		BLI_pbvh_node_mark_rebuild_draw(node);
+		BLI_pbvh_node_fully_hidden_set(node, !any_visible);
+	}
+}
+
 static void rect_from_props(rcti *rect, PointerRNA *ptr)
 {
 	rect->xmin = RNA_int_get(ptr, "xmin");
@@ -330,6 +399,9 @@ static int hide_show_exec(bContext *C, wmOperator *op)
 			case PBVH_GRIDS:
 				partialvis_update_grids(ob, pbvh, nodes[i], action, area, clip_planes);
 				break;
+			case PBVH_BMESH:
+				partialvis_update_bmesh(ob, pbvh, nodes[i], action, area, clip_planes);
+				break;
 		}
 	}