18 files changed, 523 insertions, 404 deletions

diff --git a/scene/2d/navigation_region_2d.cpp b/scene/2d/navigation_region_2d.cpp
index 7bf3eec79b..32a6f266b9 100644
--- a/scene/2d/navigation_region_2d.cpp
+++ b/scene/2d/navigation_region_2d.cpp
@@ -31,333 +31,10 @@
 #include "navigation_region_2d.h"
 
 #include "core/core_string_names.h"
-#include "core/math/geometry_2d.h"
-#include "core/os/mutex.h"
 #include "scene/resources/world_2d.h"
 #include "servers/navigation_server_2d.h"
 #include "servers/navigation_server_3d.h"
 
-#include "thirdparty/misc/polypartition.h"
-
-#ifdef TOOLS_ENABLED
-Rect2 NavigationPolygon::_edit_get_rect() const {
-	if (rect_cache_dirty) {
-		item_rect = Rect2();
-		bool first = true;
-
-		for (int i = 0; i < outlines.size(); i++) {
-			const Vector<Vector2> &outline = outlines[i];
-			const int outline_size = outline.size();
-			if (outline_size < 3) {
-				continue;
-			}
-			const Vector2 *p = outline.ptr();
-			for (int j = 0; j < outline_size; j++) {
-				if (first) {
-					item_rect = Rect2(p[j], Vector2(0, 0));
-					first = false;
-				} else {
-					item_rect.expand_to(p[j]);
-				}
-			}
-		}
-
-		rect_cache_dirty = false;
-	}
-	return item_rect;
-}
-
-bool NavigationPolygon::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
-	for (int i = 0; i < outlines.size(); i++) {
-		const Vector<Vector2> &outline = outlines[i];
-		const int outline_size = outline.size();
-		if (outline_size < 3) {
-			continue;
-		}
-		if (Geometry2D::is_point_in_polygon(p_point, Variant(outline))) {
-			return true;
-		}
-	}
-	return false;
-}
-#endif
-
-void NavigationPolygon::set_vertices(const Vector<Vector2> &p_vertices) {
-	{
-		MutexLock lock(navmesh_generation);
-		navmesh.unref();
-	}
-	vertices = p_vertices;
-	rect_cache_dirty = true;
-}
-
-Vector<Vector2> NavigationPolygon::get_vertices() const {
-	return vertices;
-}
-
-void NavigationPolygon::_set_polygons(const TypedArray<Vector<int32_t>> &p_array) {
-	{
-		MutexLock lock(navmesh_generation);
-		navmesh.unref();
-	}
-	polygons.resize(p_array.size());
-	for (int i = 0; i < p_array.size(); i++) {
-		polygons.write[i].indices = p_array[i];
-	}
-}
-
-TypedArray<Vector<int32_t>> NavigationPolygon::_get_polygons() const {
-	TypedArray<Vector<int32_t>> ret;
-	ret.resize(polygons.size());
-	for (int i = 0; i < ret.size(); i++) {
-		ret[i] = polygons[i].indices;
-	}
-
-	return ret;
-}
-
-void NavigationPolygon::_set_outlines(const TypedArray<Vector<Vector2>> &p_array) {
-	outlines.resize(p_array.size());
-	for (int i = 0; i < p_array.size(); i++) {
-		outlines.write[i] = p_array[i];
-	}
-	rect_cache_dirty = true;
-}
-
-TypedArray<Vector<Vector2>> NavigationPolygon::_get_outlines() const {
-	TypedArray<Vector<Vector2>> ret;
-	ret.resize(outlines.size());
-	for (int i = 0; i < ret.size(); i++) {
-		ret[i] = outlines[i];
-	}
-
-	return ret;
-}
-
-void NavigationPolygon::add_polygon(const Vector<int> &p_polygon) {
-	Polygon polygon;
-	polygon.indices = p_polygon;
-	polygons.push_back(polygon);
-	{
-		MutexLock lock(navmesh_generation);
-		navmesh.unref();
-	}
-}
-
-void NavigationPolygon::add_outline_at_index(const Vector<Vector2> &p_outline, int p_index) {
-	outlines.insert(p_index, p_outline);
-	rect_cache_dirty = true;
-}
-
-int NavigationPolygon::get_polygon_count() const {
-	return polygons.size();
-}
-
-Vector<int> NavigationPolygon::get_polygon(int p_idx) {
-	ERR_FAIL_INDEX_V(p_idx, polygons.size(), Vector<int>());
-	return polygons[p_idx].indices;
-}
-
-void NavigationPolygon::clear_polygons() {
-	polygons.clear();
-	{
-		MutexLock lock(navmesh_generation);
-		navmesh.unref();
-	}
-}
-
-Ref<NavigationMesh> NavigationPolygon::get_mesh() {
-	MutexLock lock(navmesh_generation);
-
-	if (navmesh.is_null()) {
-		navmesh.instantiate();
-		Vector<Vector3> verts;
-		{
-			verts.resize(get_vertices().size());
-			Vector3 *w = verts.ptrw();
-
-			const Vector2 *r = get_vertices().ptr();
-
-			for (int i(0); i < get_vertices().size(); i++) {
-				w[i] = Vector3(r[i].x, 0.0, r[i].y);
-			}
-		}
-		navmesh->set_vertices(verts);
-
-		for (int i(0); i < get_polygon_count(); i++) {
-			navmesh->add_polygon(get_polygon(i));
-		}
-	}
-
-	return navmesh;
-}
-
-void NavigationPolygon::add_outline(const Vector<Vector2> &p_outline) {
-	outlines.push_back(p_outline);
-	rect_cache_dirty = true;
-}
-
-int NavigationPolygon::get_outline_count() const {
-	return outlines.size();
-}
-
-void NavigationPolygon::set_outline(int p_idx, const Vector<Vector2> &p_outline) {
-	ERR_FAIL_INDEX(p_idx, outlines.size());
-	outlines.write[p_idx] = p_outline;
-	rect_cache_dirty = true;
-}
-
-void NavigationPolygon::remove_outline(int p_idx) {
-	ERR_FAIL_INDEX(p_idx, outlines.size());
-	outlines.remove_at(p_idx);
-	rect_cache_dirty = true;
-}
-
-Vector<Vector2> NavigationPolygon::get_outline(int p_idx) const {
-	ERR_FAIL_INDEX_V(p_idx, outlines.size(), Vector<Vector2>());
-	return outlines[p_idx];
-}
-
-void NavigationPolygon::clear_outlines() {
-	outlines.clear();
-	rect_cache_dirty = true;
-}
-
-void NavigationPolygon::make_polygons_from_outlines() {
-	{
-		MutexLock lock(navmesh_generation);
-		navmesh.unref();
-	}
-	List<TPPLPoly> in_poly, out_poly;
-
-	Vector2 outside_point(-1e10, -1e10);
-
-	for (int i = 0; i < outlines.size(); i++) {
-		Vector<Vector2> ol = outlines[i];
-		int olsize = ol.size();
-		if (olsize < 3) {
-			continue;
-		}
-		const Vector2 *r = ol.ptr();
-		for (int j = 0; j < olsize; j++) {
-			outside_point.x = MAX(r[j].x, outside_point.x);
-			outside_point.y = MAX(r[j].y, outside_point.y);
-		}
-	}
-
-	outside_point += Vector2(0.7239784, 0.819238); //avoid precision issues
-
-	for (int i = 0; i < outlines.size(); i++) {
-		Vector<Vector2> ol = outlines[i];
-		int olsize = ol.size();
-		if (olsize < 3) {
-			continue;
-		}
-		const Vector2 *r = ol.ptr();
-
-		int interscount = 0;
-		//test if this is an outer outline
-		for (int k = 0; k < outlines.size(); k++) {
-			if (i == k) {
-				continue; //no self intersect
-			}
-
-			Vector<Vector2> ol2 = outlines[k];
-			int olsize2 = ol2.size();
-			if (olsize2 < 3) {
-				continue;
-			}
-			const Vector2 *r2 = ol2.ptr();
-
-			for (int l = 0; l < olsize2; l++) {
-				if (Geometry2D::segment_intersects_segment(r[0], outside_point, r2[l], r2[(l + 1) % olsize2], nullptr)) {
-					interscount++;
-				}
-			}
-		}
-
-		bool outer = (interscount % 2) == 0;
-
-		TPPLPoly tp;
-		tp.Init(olsize);
-		for (int j = 0; j < olsize; j++) {
-			tp[j] = r[j];
-		}
-
-		if (outer) {
-			tp.SetOrientation(TPPL_ORIENTATION_CCW);
-		} else {
-			tp.SetOrientation(TPPL_ORIENTATION_CW);
-			tp.SetHole(true);
-		}
-
-		in_poly.push_back(tp);
-	}
-
-	TPPLPartition tpart;
-	if (tpart.ConvexPartition_HM(&in_poly, &out_poly) == 0) { //failed!
-		ERR_PRINT("NavigationPolygon: Convex partition failed! Failed to convert outlines to a valid NavigationMesh."
-				  "\nNavigationPolygon outlines can not overlap vertices or edges inside same outline or with other outlines or have any intersections."
-				  "\nAdd the outmost and largest outline first. To add holes inside this outline add the smaller outlines with opposite winding order.");
-		return;
-	}
-
-	polygons.clear();
-	vertices.clear();
-
-	HashMap<Vector2, int> points;
-	for (List<TPPLPoly>::Element *I = out_poly.front(); I; I = I->next()) {
-		TPPLPoly &tp = I->get();
-
-		struct Polygon p;
-
-		for (int64_t i = 0; i < tp.GetNumPoints(); i++) {
-			HashMap<Vector2, int>::Iterator E = points.find(tp[i]);
-			if (!E) {
-				E = points.insert(tp[i], vertices.size());
-				vertices.push_back(tp[i]);
-			}
-			p.indices.push_back(E->value);
-		}
-
-		polygons.push_back(p);
-	}
-
-	emit_signal(CoreStringNames::get_singleton()->changed);
-}
-
-void NavigationPolygon::_bind_methods() {
-	ClassDB::bind_method(D_METHOD("set_vertices", "vertices"), &NavigationPolygon::set_vertices);
-	ClassDB::bind_method(D_METHOD("get_vertices"), &NavigationPolygon::get_vertices);
-
-	ClassDB::bind_method(D_METHOD("add_polygon", "polygon"), &NavigationPolygon::add_polygon);
-	ClassDB::bind_method(D_METHOD("get_polygon_count"), &NavigationPolygon::get_polygon_count);
-	ClassDB::bind_method(D_METHOD("get_polygon", "idx"), &NavigationPolygon::get_polygon);
-	ClassDB::bind_method(D_METHOD("clear_polygons"), &NavigationPolygon::clear_polygons);
-	ClassDB::bind_method(D_METHOD("get_mesh"), &NavigationPolygon::get_mesh);
-
-	ClassDB::bind_method(D_METHOD("add_outline", "outline"), &NavigationPolygon::add_outline);
-	ClassDB::bind_method(D_METHOD("add_outline_at_index", "outline", "index"), &NavigationPolygon::add_outline_at_index);
-	ClassDB::bind_method(D_METHOD("get_outline_count"), &NavigationPolygon::get_outline_count);
-	ClassDB::bind_method(D_METHOD("set_outline", "idx", "outline"), &NavigationPolygon::set_outline);
-	ClassDB::bind_method(D_METHOD("get_outline", "idx"), &NavigationPolygon::get_outline);
-	ClassDB::bind_method(D_METHOD("remove_outline", "idx"), &NavigationPolygon::remove_outline);
-	ClassDB::bind_method(D_METHOD("clear_outlines"), &NavigationPolygon::clear_outlines);
-	ClassDB::bind_method(D_METHOD("make_polygons_from_outlines"), &NavigationPolygon::make_polygons_from_outlines);
-
-	ClassDB::bind_method(D_METHOD("_set_polygons", "polygons"), &NavigationPolygon::_set_polygons);
-	ClassDB::bind_method(D_METHOD("_get_polygons"), &NavigationPolygon::_get_polygons);
-
-	ClassDB::bind_method(D_METHOD("_set_outlines", "outlines"), &NavigationPolygon::_set_outlines);
-	ClassDB::bind_method(D_METHOD("_get_outlines"), &NavigationPolygon::_get_outlines);
-
-	ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "vertices", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "set_vertices", "get_vertices");
-	ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "polygons", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "_set_polygons", "_get_polygons");
-	ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "outlines", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "_set_outlines", "_get_outlines");
-}
-
-/////////////////////////////
-
 void NavigationRegion2D::set_enabled(bool p_enabled) {
 	if (enabled == p_enabled) {
 		return;
diff --git a/scene/2d/navigation_region_2d.h b/scene/2d/navigation_region_2d.h
index c630e20780..fa012c2659 100644
--- a/scene/2d/navigation_region_2d.h
+++ b/scene/2d/navigation_region_2d.h
@@ -31,65 +31,7 @@
 #ifndef NAVIGATION_REGION_2D_H
 #define NAVIGATION_REGION_2D_H
 
-#include "scene/2d/node_2d.h"
-#include "scene/resources/navigation_mesh.h"
-
-class NavigationPolygon : public Resource {
-	GDCLASS(NavigationPolygon, Resource);
-
-	Vector<Vector2> vertices;
-	struct Polygon {
-		Vector<int> indices;
-	};
-	Vector<Polygon> polygons;
-	Vector<Vector<Vector2>> outlines;
-
-	mutable Rect2 item_rect;
-	mutable bool rect_cache_dirty = true;
-
-	Mutex navmesh_generation;
-	// Navigation mesh
-	Ref<NavigationMesh> navmesh;
-
-protected:
-	static void _bind_methods();
-
-	void _set_polygons(const TypedArray<Vector<int32_t>> &p_array);
-	TypedArray<Vector<int32_t>> _get_polygons() const;
-
-	void _set_outlines(const TypedArray<Vector<Vector2>> &p_array);
-	TypedArray<Vector<Vector2>> _get_outlines() const;
-
-public:
-#ifdef TOOLS_ENABLED
-	Rect2 _edit_get_rect() const;
-	bool _edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const;
-#endif
-
-	void set_vertices(const Vector<Vector2> &p_vertices);
-	Vector<Vector2> get_vertices() const;
-
-	void add_polygon(const Vector<int> &p_polygon);
-	int get_polygon_count() const;
-
-	void add_outline(const Vector<Vector2> &p_outline);
-	void add_outline_at_index(const Vector<Vector2> &p_outline, int p_index);
-	void set_outline(int p_idx, const Vector<Vector2> &p_outline);
-	Vector<Vector2> get_outline(int p_idx) const;
-	void remove_outline(int p_idx);
-	int get_outline_count() const;
-
-	void clear_outlines();
-	void make_polygons_from_outlines();
-
-	Vector<int> get_polygon(int p_idx);
-	void clear_polygons();
-
-	Ref<NavigationMesh> get_mesh();
-
-	NavigationPolygon() {}
-	~NavigationPolygon() {}
-};
+#include "scene/resources/navigation_polygon.h"
 
 class NavigationRegion2D : public Node2D {
 	GDCLASS(NavigationRegion2D, Node2D);
diff --git a/scene/2d/tile_map.cpp b/scene/2d/tile_map.cpp
index 842b614032..ad70559986 100644
--- a/scene/2d/tile_map.cpp
+++ b/scene/2d/tile_map.cpp
@@ -1092,7 +1092,7 @@ void TileMap::_rendering_update_layer(int p_layer) {
 		/*Transform2D xform;
 		xform.set_origin(Vector2(0, p_layer));
 		rs->canvas_item_set_transform(ci, xform);*/
-		rs->canvas_item_set_draw_index(ci, p_layer);
+		rs->canvas_item_set_draw_index(ci, p_layer - (int64_t)0x80000000);
 
 		layers[p_layer].canvas_item = ci;
 	}
diff --git a/scene/3d/mesh_instance_3d.cpp b/scene/3d/mesh_instance_3d.cpp
index 10f3ab5c79..16de95bfb1 100644
--- a/scene/3d/mesh_instance_3d.cpp
+++ b/scene/3d/mesh_instance_3d.cpp
@@ -53,21 +53,22 @@ bool MeshInstance3D::_set(const StringName &p_name, const Variant &p_value) {
 	if (p_name.operator String().begins_with("surface_material_override/")) {
 		int idx = p_name.operator String().get_slicec('/', 1).to_int();
 
-		// This is a bit of a hack to ensure compatibility with older material
-		// overrides that start indexing at 0.
+		// This is a bit of a hack to ensure compatibility with material
+		// overrides that start indexing at 1.
 		// We assume that idx 0 is always read first, if its not, this won't work.
 		if (idx == 0) {
-			old_surface_index = true;
+			surface_index_0 = true;
 		}
-		if (old_surface_index) {
-			idx++;
+		if (!surface_index_0) {
+			// This means the file was created when the indexing started at 1, so decrease by one.
+			idx--;
 		}
 
 		if (idx > surface_override_materials.size() || idx < 0) {
 			return false;
 		}
 
-		set_surface_override_material(idx - 1, p_value);
+		set_surface_override_material(idx, p_value);
 		return true;
 	}
 
@@ -86,7 +87,7 @@ bool MeshInstance3D::_get(const StringName &p_name, Variant &r_ret) const {
 	}
 
 	if (p_name.operator String().begins_with("surface_material_override/")) {
-		int idx = p_name.operator String().get_slicec('/', 1).to_int() - 1;
+		int idx = p_name.operator String().get_slicec('/', 1).to_int();
 		if (idx >= surface_override_materials.size() || idx < 0) {
 			return false;
 		}
@@ -109,7 +110,7 @@ void MeshInstance3D::_get_property_list(List<PropertyInfo> *p_list) const {
 	}
 
 	if (mesh.is_valid()) {
-		for (int i = 1; i <= mesh->get_surface_count(); i++) {
+		for (int i = 0; i < mesh->get_surface_count(); i++) {
 			p_list->push_back(PropertyInfo(Variant::OBJECT, vformat("%s/%d", PNAME("surface_material_override"), i), PROPERTY_HINT_RESOURCE_TYPE, "BaseMaterial3D,ShaderMaterial", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_DEFERRED_SET_RESOURCE));
 		}
 	}
diff --git a/scene/3d/mesh_instance_3d.h b/scene/3d/mesh_instance_3d.h
index 9e6dbaf160..e1cc5272ea 100644
--- a/scene/3d/mesh_instance_3d.h
+++ b/scene/3d/mesh_instance_3d.h
@@ -57,7 +57,7 @@ protected:
 	bool _set(const StringName &p_name, const Variant &p_value);
 	bool _get(const StringName &p_name, Variant &r_ret) const;
 	void _get_property_list(List<PropertyInfo> *p_list) const;
-	bool old_surface_index = false;
+	bool surface_index_0 = false;
 
 	void _notification(int p_what);
 	static void _bind_methods();
diff --git a/scene/3d/visual_instance_3d.cpp b/scene/3d/visual_instance_3d.cpp
index 0f214ecd97..c027e33ad3 100644
--- a/scene/3d/visual_instance_3d.cpp
+++ b/scene/3d/visual_instance_3d.cpp
@@ -338,8 +338,16 @@ Variant GeometryInstance3D::get_instance_shader_parameter(const StringName &p_na
 	return RS::get_singleton()->instance_geometry_get_shader_parameter(get_instance(), p_name);
 }
 
-void GeometryInstance3D::set_custom_aabb(AABB aabb) {
-	RS::get_singleton()->instance_set_custom_aabb(get_instance(), aabb);
+void GeometryInstance3D::set_custom_aabb(AABB p_aabb) {
+	if (p_aabb == custom_aabb) {
+		return;
+	}
+	custom_aabb = p_aabb;
+	RS::get_singleton()->instance_set_custom_aabb(get_instance(), custom_aabb);
+}
+
+AABB GeometryInstance3D::get_custom_aabb() const {
+	return custom_aabb;
 }
 
 void GeometryInstance3D::set_lightmap_scale(LightmapScale p_scale) {
@@ -449,6 +457,7 @@ void GeometryInstance3D::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("is_ignoring_occlusion_culling"), &GeometryInstance3D::is_ignoring_occlusion_culling);
 
 	ClassDB::bind_method(D_METHOD("set_custom_aabb", "aabb"), &GeometryInstance3D::set_custom_aabb);
+	ClassDB::bind_method(D_METHOD("get_custom_aabb"), &GeometryInstance3D::get_custom_aabb);
 
 	ClassDB::bind_method(D_METHOD("get_aabb"), &GeometryInstance3D::get_aabb);
 
@@ -458,6 +467,7 @@ void GeometryInstance3D::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "transparency", PROPERTY_HINT_RANGE, "0.0,1.0,0.01"), "set_transparency", "get_transparency");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "cast_shadow", PROPERTY_HINT_ENUM, "Off,On,Double-Sided,Shadows Only"), "set_cast_shadows_setting", "get_cast_shadows_setting");
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "extra_cull_margin", PROPERTY_HINT_RANGE, "0,16384,0.01,suffix:m"), "set_extra_cull_margin", "get_extra_cull_margin");
+	ADD_PROPERTY(PropertyInfo(Variant::AABB, "custom_aabb", PROPERTY_HINT_NONE, "suffix:m"), "set_custom_aabb", "get_custom_aabb");
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "lod_bias", PROPERTY_HINT_RANGE, "0.001,128,0.001"), "set_lod_bias", "get_lod_bias");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "ignore_occlusion_culling"), "set_ignore_occlusion_culling", "is_ignoring_occlusion_culling");
 
diff --git a/scene/3d/visual_instance_3d.h b/scene/3d/visual_instance_3d.h
index f18bff2ddc..c741ef710d 100644
--- a/scene/3d/visual_instance_3d.h
+++ b/scene/3d/visual_instance_3d.h
@@ -121,6 +121,7 @@ private:
 	mutable HashMap<StringName, StringName> instance_shader_parameter_property_remap;
 
 	float extra_cull_margin = 0.0;
+	AABB custom_aabb;
 	LightmapScale lightmap_scale = LIGHTMAP_SCALE_1X;
 	GIMode gi_mode = GI_MODE_STATIC;
 	bool ignore_occlusion_culling = false;
@@ -177,7 +178,8 @@ public:
 	void set_instance_shader_parameter(const StringName &p_name, const Variant &p_value);
 	Variant get_instance_shader_parameter(const StringName &p_name) const;
 
-	void set_custom_aabb(AABB aabb);
+	void set_custom_aabb(AABB p_aabb);
+	AABB get_custom_aabb() const;
 
 	void set_ignore_occlusion_culling(bool p_enabled);
 	bool is_ignoring_occlusion_culling();
diff --git a/scene/gui/code_edit.cpp b/scene/gui/code_edit.cpp
index f46daef127..3bb02ebf7f 100644
--- a/scene/gui/code_edit.cpp
+++ b/scene/gui/code_edit.cpp
@@ -115,7 +115,9 @@ void CodeEdit::_notification(int p_what) {
 
 				const Point2 caret_pos = get_caret_draw_pos();
 				const int total_height = csb->get_minimum_size().y + code_completion_rect.size.height;
-				if (caret_pos.y + row_height + total_height > get_size().height) {
+				const bool can_fit_completion_above = (caret_pos.y - row_height > total_height);
+				const bool can_fit_completion_below = (caret_pos.y + row_height + total_height <= get_size().height);
+				if (!can_fit_completion_below && can_fit_completion_above) {
 					code_completion_rect.position.y = (caret_pos.y - total_height - row_height) + line_spacing;
 				} else {
 					code_completion_rect.position.y = caret_pos.y + (line_spacing / 2.0f);
diff --git a/scene/gui/link_button.cpp b/scene/gui/link_button.cpp
index 7219e86f52..2c43ca7143 100644
--- a/scene/gui/link_button.cpp
+++ b/scene/gui/link_button.cpp
@@ -108,6 +108,14 @@ String LinkButton::get_language() const {
 	return language;
 }
 
+void LinkButton::set_uri(const String &p_uri) {
+	uri = p_uri;
+}
+
+String LinkButton::get_uri() const {
+	return uri;
+}
+
 void LinkButton::set_underline_mode(UnderlineMode p_underline_mode) {
 	if (underline_mode == p_underline_mode) {
 		return;
@@ -121,6 +129,14 @@ LinkButton::UnderlineMode LinkButton::get_underline_mode() const {
 	return underline_mode;
 }
 
+void LinkButton::pressed() {
+	if (uri.is_empty()) {
+		return;
+	}
+
+	OS::get_singleton()->shell_open(uri);
+}
+
 Size2 LinkButton::get_minimum_size() const {
 	return text_buf->get_size();
 }
@@ -245,6 +261,8 @@ void LinkButton::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_text_direction"), &LinkButton::get_text_direction);
 	ClassDB::bind_method(D_METHOD("set_language", "language"), &LinkButton::set_language);
 	ClassDB::bind_method(D_METHOD("get_language"), &LinkButton::get_language);
+	ClassDB::bind_method(D_METHOD("set_uri", "uri"), &LinkButton::set_uri);
+	ClassDB::bind_method(D_METHOD("get_uri"), &LinkButton::get_uri);
 	ClassDB::bind_method(D_METHOD("set_underline_mode", "underline_mode"), &LinkButton::set_underline_mode);
 	ClassDB::bind_method(D_METHOD("get_underline_mode"), &LinkButton::get_underline_mode);
 	ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override", "parser"), &LinkButton::set_structured_text_bidi_override);
@@ -258,6 +276,7 @@ void LinkButton::_bind_methods() {
 
 	ADD_PROPERTY(PropertyInfo(Variant::STRING, "text"), "set_text", "get_text");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "underline", PROPERTY_HINT_ENUM, "Always,On Hover,Never"), "set_underline_mode", "get_underline_mode");
+	ADD_PROPERTY(PropertyInfo(Variant::STRING, "uri"), "set_uri", "get_uri");
 
 	ADD_GROUP("BiDi", "");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "text_direction", PROPERTY_HINT_ENUM, "Auto,Left-to-Right,Right-to-Left,Inherited"), "set_text_direction", "get_text_direction");
diff --git a/scene/gui/link_button.h b/scene/gui/link_button.h
index accd848163..c71872fc86 100644
--- a/scene/gui/link_button.h
+++ b/scene/gui/link_button.h
@@ -49,6 +49,7 @@ private:
 	String xl_text;
 	Ref<TextLine> text_buf;
 	UnderlineMode underline_mode = UNDERLINE_MODE_ALWAYS;
+	String uri;
 
 	String language;
 	TextDirection text_direction = TEXT_DIRECTION_AUTO;
@@ -76,6 +77,7 @@ private:
 	void _shape();
 
 protected:
+	virtual void pressed() override;
 	virtual Size2 get_minimum_size() const override;
 	virtual void _update_theme_item_cache() override;
 	void _notification(int p_what);
@@ -84,6 +86,8 @@ protected:
 public:
 	void set_text(const String &p_text);
 	String get_text() const;
+	void set_uri(const String &p_uri);
+	String get_uri() const;
 
 	void set_structured_text_bidi_override(TextServer::StructuredTextParser p_parser);
 	TextServer::StructuredTextParser get_structured_text_bidi_override() const;
diff --git a/scene/main/scene_tree.cpp b/scene/main/scene_tree.cpp
index e17947c27b..e61cca0a0f 100644
--- a/scene/main/scene_tree.cpp
+++ b/scene/main/scene_tree.cpp
@@ -1422,7 +1422,7 @@ SceneTree::SceneTree() {
 	ProjectSettings::get_singleton()->set_custom_property_info("rendering/anti_aliasing/quality/msaa_3d", PropertyInfo(Variant::INT, "rendering/anti_aliasing/quality/msaa_3d", PROPERTY_HINT_ENUM, String::utf8("Disabled (Fastest),2× (Average),4× (Slow),8× (Slowest)")));
 	root->set_msaa_3d(Viewport::MSAA(msaa_mode_3d));
 
-	const bool transparent_background = GLOBAL_DEF("rendering/transparent_background", false);
+	const bool transparent_background = GLOBAL_DEF("rendering/viewport/transparent_background", false);
 	root->set_transparent_background(transparent_background);
 
 	const int ssaa_mode = GLOBAL_DEF_BASIC("rendering/anti_aliasing/quality/screen_space_aa", 0);
diff --git a/scene/register_scene_types.cpp b/scene/register_scene_types.cpp
index 043895b591..4f300cb5d6 100644
--- a/scene/register_scene_types.cpp
+++ b/scene/register_scene_types.cpp
@@ -56,6 +56,7 @@
 #include "scene/2d/navigation_agent_2d.h"
 #include "scene/2d/navigation_link_2d.h"
 #include "scene/2d/navigation_obstacle_2d.h"
+#include "scene/2d/navigation_region_2d.h"
 #include "scene/2d/parallax_background.h"
 #include "scene/2d/parallax_layer.h"
 #include "scene/2d/path_2d.h"
@@ -163,6 +164,7 @@
 #include "scene/resources/mesh_data_tool.h"
 #include "scene/resources/multimesh.h"
 #include "scene/resources/navigation_mesh.h"
+#include "scene/resources/navigation_polygon.h"
 #include "scene/resources/packed_scene.h"
 #include "scene/resources/particle_process_material.h"
 #include "scene/resources/physics_material.h"
diff --git a/scene/resources/mesh.cpp b/scene/resources/mesh.cpp
index a5e7602c8b..af770ddede 100644
--- a/scene/resources/mesh.cpp
+++ b/scene/resources/mesh.cpp
@@ -1118,7 +1118,19 @@ bool ArrayMesh::_set(const StringName &p_name, const Variant &p_value) {
 		if (sl == -1) {
 			return false;
 		}
-		int idx = sname.substr(8, sl - 8).to_int() - 1;
+		int idx = sname.substr(8, sl - 8).to_int();
+
+		// This is a bit of a hack to ensure compatibility with older material
+		// overrides that start indexing at 1.
+		// We assume that idx 0 is always read first, if its not, this won't work.
+		if (idx == 0) {
+			surface_index_0 = true;
+		}
+		if (!surface_index_0) {
+			// This means the file was created when the indexing started at 1, so decrease by one.
+			idx--;
+		}
+
 		String what = sname.get_slicec('/', 1);
 		if (what == "material") {
 			surface_set_material(idx, p_value);
@@ -1491,7 +1503,7 @@ bool ArrayMesh::_get(const StringName &p_name, Variant &r_ret) const {
 		if (sl == -1) {
 			return false;
 		}
-		int idx = sname.substr(8, sl - 8).to_int() - 1;
+		int idx = sname.substr(8, sl - 8).to_int();
 		String what = sname.get_slicec('/', 1);
 		if (what == "material") {
 			r_ret = surface_get_material(idx);
@@ -1519,11 +1531,11 @@ void ArrayMesh::_get_property_list(List<PropertyInfo> *p_list) const {
 	}
 
 	for (int i = 0; i < surfaces.size(); i++) {
-		p_list->push_back(PropertyInfo(Variant::STRING, "surface_" + itos(i + 1) + "/name", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR));
+		p_list->push_back(PropertyInfo(Variant::STRING, "surface_" + itos(i) + "/name", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR));
 		if (surfaces[i].is_2d) {
-			p_list->push_back(PropertyInfo(Variant::OBJECT, "surface_" + itos(i + 1) + "/material", PROPERTY_HINT_RESOURCE_TYPE, "CanvasItemMaterial,ShaderMaterial", PROPERTY_USAGE_EDITOR));
+			p_list->push_back(PropertyInfo(Variant::OBJECT, "surface_" + itos(i) + "/material", PROPERTY_HINT_RESOURCE_TYPE, "CanvasItemMaterial,ShaderMaterial", PROPERTY_USAGE_EDITOR));
 		} else {
-			p_list->push_back(PropertyInfo(Variant::OBJECT, "surface_" + itos(i + 1) + "/material", PROPERTY_HINT_RESOURCE_TYPE, "BaseMaterial3D,ShaderMaterial", PROPERTY_USAGE_EDITOR));
+			p_list->push_back(PropertyInfo(Variant::OBJECT, "surface_" + itos(i) + "/material", PROPERTY_HINT_RESOURCE_TYPE, "BaseMaterial3D,ShaderMaterial", PROPERTY_USAGE_EDITOR));
 		}
 	}
 }
diff --git a/scene/resources/mesh.h b/scene/resources/mesh.h
index 6f995280e8..fabc09a42c 100644
--- a/scene/resources/mesh.h
+++ b/scene/resources/mesh.h
@@ -262,6 +262,7 @@ protected:
 	bool _set(const StringName &p_name, const Variant &p_value);
 	bool _get(const StringName &p_name, Variant &r_ret) const;
 	void _get_property_list(List<PropertyInfo> *p_list) const;
+	bool surface_index_0 = false;
 
 	virtual void reset_state() override;
 
diff --git a/scene/resources/navigation_polygon.cpp b/scene/resources/navigation_polygon.cpp
new file mode 100644
index 0000000000..fa9b701010
--- /dev/null
+++ b/scene/resources/navigation_polygon.cpp
@@ -0,0 +1,354 @@
+/*************************************************************************/
+/*  navigation_polygon.cpp                                               */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "navigation_polygon.h"
+
+#include "core/core_string_names.h"
+#include "core/math/geometry_2d.h"
+#include "core/os/mutex.h"
+
+#include "thirdparty/misc/polypartition.h"
+
+#ifdef TOOLS_ENABLED
+Rect2 NavigationPolygon::_edit_get_rect() const {
+	if (rect_cache_dirty) {
+		item_rect = Rect2();
+		bool first = true;
+
+		for (int i = 0; i < outlines.size(); i++) {
+			const Vector<Vector2> &outline = outlines[i];
+			const int outline_size = outline.size();
+			if (outline_size < 3) {
+				continue;
+			}
+			const Vector2 *p = outline.ptr();
+			for (int j = 0; j < outline_size; j++) {
+				if (first) {
+					item_rect = Rect2(p[j], Vector2(0, 0));
+					first = false;
+				} else {
+					item_rect.expand_to(p[j]);
+				}
+			}
+		}
+
+		rect_cache_dirty = false;
+	}
+	return item_rect;
+}
+
+bool NavigationPolygon::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
+	for (int i = 0; i < outlines.size(); i++) {
+		const Vector<Vector2> &outline = outlines[i];
+		const int outline_size = outline.size();
+		if (outline_size < 3) {
+			continue;
+		}
+		if (Geometry2D::is_point_in_polygon(p_point, Variant(outline))) {
+			return true;
+		}
+	}
+	return false;
+}
+#endif
+
+void NavigationPolygon::set_vertices(const Vector<Vector2> &p_vertices) {
+	{
+		MutexLock lock(navmesh_generation);
+		navmesh.unref();
+	}
+	vertices = p_vertices;
+	rect_cache_dirty = true;
+}
+
+Vector<Vector2> NavigationPolygon::get_vertices() const {
+	return vertices;
+}
+
+void NavigationPolygon::_set_polygons(const TypedArray<Vector<int32_t>> &p_array) {
+	{
+		MutexLock lock(navmesh_generation);
+		navmesh.unref();
+	}
+	polygons.resize(p_array.size());
+	for (int i = 0; i < p_array.size(); i++) {
+		polygons.write[i].indices = p_array[i];
+	}
+}
+
+TypedArray<Vector<int32_t>> NavigationPolygon::_get_polygons() const {
+	TypedArray<Vector<int32_t>> ret;
+	ret.resize(polygons.size());
+	for (int i = 0; i < ret.size(); i++) {
+		ret[i] = polygons[i].indices;
+	}
+
+	return ret;
+}
+
+void NavigationPolygon::_set_outlines(const TypedArray<Vector<Vector2>> &p_array) {
+	outlines.resize(p_array.size());
+	for (int i = 0; i < p_array.size(); i++) {
+		outlines.write[i] = p_array[i];
+	}
+	rect_cache_dirty = true;
+}
+
+TypedArray<Vector<Vector2>> NavigationPolygon::_get_outlines() const {
+	TypedArray<Vector<Vector2>> ret;
+	ret.resize(outlines.size());
+	for (int i = 0; i < ret.size(); i++) {
+		ret[i] = outlines[i];
+	}
+
+	return ret;
+}
+
+void NavigationPolygon::add_polygon(const Vector<int> &p_polygon) {
+	Polygon polygon;
+	polygon.indices = p_polygon;
+	polygons.push_back(polygon);
+	{
+		MutexLock lock(navmesh_generation);
+		navmesh.unref();
+	}
+}
+
+void NavigationPolygon::add_outline_at_index(const Vector<Vector2> &p_outline, int p_index) {
+	outlines.insert(p_index, p_outline);
+	rect_cache_dirty = true;
+}
+
+int NavigationPolygon::get_polygon_count() const {
+	return polygons.size();
+}
+
+Vector<int> NavigationPolygon::get_polygon(int p_idx) {
+	ERR_FAIL_INDEX_V(p_idx, polygons.size(), Vector<int>());
+	return polygons[p_idx].indices;
+}
+
+void NavigationPolygon::clear_polygons() {
+	polygons.clear();
+	{
+		MutexLock lock(navmesh_generation);
+		navmesh.unref();
+	}
+}
+
+Ref<NavigationMesh> NavigationPolygon::get_mesh() {
+	MutexLock lock(navmesh_generation);
+
+	if (navmesh.is_null()) {
+		navmesh.instantiate();
+		Vector<Vector3> verts;
+		{
+			verts.resize(get_vertices().size());
+			Vector3 *w = verts.ptrw();
+
+			const Vector2 *r = get_vertices().ptr();
+
+			for (int i(0); i < get_vertices().size(); i++) {
+				w[i] = Vector3(r[i].x, 0.0, r[i].y);
+			}
+		}
+		navmesh->set_vertices(verts);
+
+		for (int i(0); i < get_polygon_count(); i++) {
+			navmesh->add_polygon(get_polygon(i));
+		}
+	}
+
+	return navmesh;
+}
+
+void NavigationPolygon::add_outline(const Vector<Vector2> &p_outline) {
+	outlines.push_back(p_outline);
+	rect_cache_dirty = true;
+}
+
+int NavigationPolygon::get_outline_count() const {
+	return outlines.size();
+}
+
+void NavigationPolygon::set_outline(int p_idx, const Vector<Vector2> &p_outline) {
+	ERR_FAIL_INDEX(p_idx, outlines.size());
+	outlines.write[p_idx] = p_outline;
+	rect_cache_dirty = true;
+}
+
+void NavigationPolygon::remove_outline(int p_idx) {
+	ERR_FAIL_INDEX(p_idx, outlines.size());
+	outlines.remove_at(p_idx);
+	rect_cache_dirty = true;
+}
+
+Vector<Vector2> NavigationPolygon::get_outline(int p_idx) const {
+	ERR_FAIL_INDEX_V(p_idx, outlines.size(), Vector<Vector2>());
+	return outlines[p_idx];
+}
+
+void NavigationPolygon::clear_outlines() {
+	outlines.clear();
+	rect_cache_dirty = true;
+}
+
+void NavigationPolygon::make_polygons_from_outlines() {
+	{
+		MutexLock lock(navmesh_generation);
+		navmesh.unref();
+	}
+	List<TPPLPoly> in_poly, out_poly;
+
+	Vector2 outside_point(-1e10, -1e10);
+
+	for (int i = 0; i < outlines.size(); i++) {
+		Vector<Vector2> ol = outlines[i];
+		int olsize = ol.size();
+		if (olsize < 3) {
+			continue;
+		}
+		const Vector2 *r = ol.ptr();
+		for (int j = 0; j < olsize; j++) {
+			outside_point.x = MAX(r[j].x, outside_point.x);
+			outside_point.y = MAX(r[j].y, outside_point.y);
+		}
+	}
+
+	outside_point += Vector2(0.7239784, 0.819238); //avoid precision issues
+
+	for (int i = 0; i < outlines.size(); i++) {
+		Vector<Vector2> ol = outlines[i];
+		int olsize = ol.size();
+		if (olsize < 3) {
+			continue;
+		}
+		const Vector2 *r = ol.ptr();
+
+		int interscount = 0;
+		//test if this is an outer outline
+		for (int k = 0; k < outlines.size(); k++) {
+			if (i == k) {
+				continue; //no self intersect
+			}
+
+			Vector<Vector2> ol2 = outlines[k];
+			int olsize2 = ol2.size();
+			if (olsize2 < 3) {
+				continue;
+			}
+			const Vector2 *r2 = ol2.ptr();
+
+			for (int l = 0; l < olsize2; l++) {
+				if (Geometry2D::segment_intersects_segment(r[0], outside_point, r2[l], r2[(l + 1) % olsize2], nullptr)) {
+					interscount++;
+				}
+			}
+		}
+
+		bool outer = (interscount % 2) == 0;
+
+		TPPLPoly tp;
+		tp.Init(olsize);
+		for (int j = 0; j < olsize; j++) {
+			tp[j] = r[j];
+		}
+
+		if (outer) {
+			tp.SetOrientation(TPPL_ORIENTATION_CCW);
+		} else {
+			tp.SetOrientation(TPPL_ORIENTATION_CW);
+			tp.SetHole(true);
+		}
+
+		in_poly.push_back(tp);
+	}
+
+	TPPLPartition tpart;
+	if (tpart.ConvexPartition_HM(&in_poly, &out_poly) == 0) { //failed!
+		ERR_PRINT("NavigationPolygon: Convex partition failed! Failed to convert outlines to a valid NavigationMesh."
+				  "\nNavigationPolygon outlines can not overlap vertices or edges inside same outline or with other outlines or have any intersections."
+				  "\nAdd the outmost and largest outline first. To add holes inside this outline add the smaller outlines with opposite winding order.");
+		return;
+	}
+
+	polygons.clear();
+	vertices.clear();
+
+	HashMap<Vector2, int> points;
+	for (List<TPPLPoly>::Element *I = out_poly.front(); I; I = I->next()) {
+		TPPLPoly &tp = I->get();
+
+		struct Polygon p;
+
+		for (int64_t i = 0; i < tp.GetNumPoints(); i++) {
+			HashMap<Vector2, int>::Iterator E = points.find(tp[i]);
+			if (!E) {
+				E = points.insert(tp[i], vertices.size());
+				vertices.push_back(tp[i]);
+			}
+			p.indices.push_back(E->value);
+		}
+
+		polygons.push_back(p);
+	}
+
+	emit_signal(CoreStringNames::get_singleton()->changed);
+}
+
+void NavigationPolygon::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("set_vertices", "vertices"), &NavigationPolygon::set_vertices);
+	ClassDB::bind_method(D_METHOD("get_vertices"), &NavigationPolygon::get_vertices);
+
+	ClassDB::bind_method(D_METHOD("add_polygon", "polygon"), &NavigationPolygon::add_polygon);
+	ClassDB::bind_method(D_METHOD("get_polygon_count"), &NavigationPolygon::get_polygon_count);
+	ClassDB::bind_method(D_METHOD("get_polygon", "idx"), &NavigationPolygon::get_polygon);
+	ClassDB::bind_method(D_METHOD("clear_polygons"), &NavigationPolygon::clear_polygons);
+	ClassDB::bind_method(D_METHOD("get_mesh"), &NavigationPolygon::get_mesh);
+
+	ClassDB::bind_method(D_METHOD("add_outline", "outline"), &NavigationPolygon::add_outline);
+	ClassDB::bind_method(D_METHOD("add_outline_at_index", "outline", "index"), &NavigationPolygon::add_outline_at_index);
+	ClassDB::bind_method(D_METHOD("get_outline_count"), &NavigationPolygon::get_outline_count);
+	ClassDB::bind_method(D_METHOD("set_outline", "idx", "outline"), &NavigationPolygon::set_outline);
+	ClassDB::bind_method(D_METHOD("get_outline", "idx"), &NavigationPolygon::get_outline);
+	ClassDB::bind_method(D_METHOD("remove_outline", "idx"), &NavigationPolygon::remove_outline);
+	ClassDB::bind_method(D_METHOD("clear_outlines"), &NavigationPolygon::clear_outlines);
+	ClassDB::bind_method(D_METHOD("make_polygons_from_outlines"), &NavigationPolygon::make_polygons_from_outlines);
+
+	ClassDB::bind_method(D_METHOD("_set_polygons", "polygons"), &NavigationPolygon::_set_polygons);
+	ClassDB::bind_method(D_METHOD("_get_polygons"), &NavigationPolygon::_get_polygons);
+
+	ClassDB::bind_method(D_METHOD("_set_outlines", "outlines"), &NavigationPolygon::_set_outlines);
+	ClassDB::bind_method(D_METHOD("_get_outlines"), &NavigationPolygon::_get_outlines);
+
+	ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "vertices", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "set_vertices", "get_vertices");
+	ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "polygons", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "_set_polygons", "_get_polygons");
+	ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "outlines", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "_set_outlines", "_get_outlines");
+}
diff --git a/scene/resources/navigation_polygon.h b/scene/resources/navigation_polygon.h
new file mode 100644
index 0000000000..771b9c296a
--- /dev/null
+++ b/scene/resources/navigation_polygon.h
@@ -0,0 +1,94 @@
+/*************************************************************************/
+/*  navigation_polygon.h                                                 */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifndef NAVIGATION_POLYGON_H
+#define NAVIGATION_POLYGON_H
+
+#include "scene/2d/node_2d.h"
+#include "scene/resources/navigation_mesh.h"
+
+class NavigationPolygon : public Resource {
+	GDCLASS(NavigationPolygon, Resource);
+
+	Vector<Vector2> vertices;
+	struct Polygon {
+		Vector<int> indices;
+	};
+	Vector<Polygon> polygons;
+	Vector<Vector<Vector2>> outlines;
+
+	mutable Rect2 item_rect;
+	mutable bool rect_cache_dirty = true;
+
+	Mutex navmesh_generation;
+	// Navigation mesh
+	Ref<NavigationMesh> navmesh;
+
+protected:
+	static void _bind_methods();
+
+	void _set_polygons(const TypedArray<Vector<int32_t>> &p_array);
+	TypedArray<Vector<int32_t>> _get_polygons() const;
+
+	void _set_outlines(const TypedArray<Vector<Vector2>> &p_array);
+	TypedArray<Vector<Vector2>> _get_outlines() const;
+
+public:
+#ifdef TOOLS_ENABLED
+	Rect2 _edit_get_rect() const;
+	bool _edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const;
+#endif
+
+	void set_vertices(const Vector<Vector2> &p_vertices);
+	Vector<Vector2> get_vertices() const;
+
+	void add_polygon(const Vector<int> &p_polygon);
+	int get_polygon_count() const;
+
+	void add_outline(const Vector<Vector2> &p_outline);
+	void add_outline_at_index(const Vector<Vector2> &p_outline, int p_index);
+	void set_outline(int p_idx, const Vector<Vector2> &p_outline);
+	Vector<Vector2> get_outline(int p_idx) const;
+	void remove_outline(int p_idx);
+	int get_outline_count() const;
+
+	void clear_outlines();
+	void make_polygons_from_outlines();
+
+	Vector<int> get_polygon(int p_idx);
+	void clear_polygons();
+
+	Ref<NavigationMesh> get_mesh();
+
+	NavigationPolygon() {}
+	~NavigationPolygon() {}
+};
+
+#endif // NAVIGATION_POLYGON_H
diff --git a/scene/resources/tile_set.cpp b/scene/resources/tile_set.cpp
index 9d2537bb4d..9b9e55d0bc 100644
--- a/scene/resources/tile_set.cpp
+++ b/scene/resources/tile_set.cpp
@@ -35,7 +35,6 @@
 #include "core/math/geometry_2d.h"
 #include "core/templates/local_vector.h"
 #include "core/templates/rb_set.h"
-#include "scene/2d/navigation_region_2d.h"
 #include "scene/gui/control.h"
 #include "scene/resources/convex_polygon_shape_2d.h"
 #include "servers/navigation_server_2d.h"
diff --git a/scene/resources/tile_set.h b/scene/resources/tile_set.h
index 9f465a17e9..88bbbd157a 100644
--- a/scene/resources/tile_set.h
+++ b/scene/resources/tile_set.h
@@ -36,10 +36,10 @@
 #include "core/templates/local_vector.h"
 #include "core/templates/rb_set.h"
 #include "scene/2d/light_occluder_2d.h"
-#include "scene/2d/navigation_region_2d.h"
 #include "scene/main/canvas_item.h"
 #include "scene/resources/concave_polygon_shape_2d.h"
 #include "scene/resources/convex_polygon_shape_2d.h"
+#include "scene/resources/navigation_polygon.h"
 #include "scene/resources/packed_scene.h"
 #include "scene/resources/physics_material.h"
 #include "scene/resources/shape_2d.h"