Backported from godot4: Add Path2D/3D debug options

- smix8
e12e239ab4

doc/classes/ProjectSettings.xml

@@ -610,6 +610,12 @@
 		<member name="debug/shapes/navigation/link_connection_disabled_color" type="Color" setter="" getter="" default="Color( 0.5, 0.5, 0.5, 1 )">
 			Color to use to display disabled navigation link connections, visible when "Visible Navigation" is enabled in the Debug menu.
 		</member>
+		<member name="debug/shapes/paths/geometry_color" type="Color" setter="" getter="" default="Color(0.1, 1, 0.7, 0.4)">
+			Color of the curve path geometry, visible when "Visible Paths" is enabled in the Debug menu.
+		</member>
+		<member name="debug/shapes/paths/geometry_width" type="float" setter="" getter="" default="2.0">
+			Line width of the curve path geometry, visible when "Visible Paths" is enabled in the Debug menu.
+		</member>
 		<member name="display/mouse_cursor/custom_image" type="String" setter="" getter="" default="&quot;&quot;">
 			Custom image for the mouse cursor (limited to 256×256).
 		</member>

doc/classes/SceneTree.xml

@@ -232,6 +232,9 @@
 			If [code]true[/code], navigation polygons will be visible when running the game from the editor for debugging purposes.
 			[b]Note:[/b] This property is not designed to be changed at run-time. Changing the value of [member debug_navigation_hint] while the project is running will not have the desired effect.
 		</member>
+		<member name="debug_paths_hint" type="bool" setter="set_debug_paths_hint" getter="is_debugging_paths_hint" default="false">
+			If [code]true[/code], curves from [Path2D] and [Path3D] nodes will be visible when running the game from the editor for debugging purposes.
+		</member>
 		<member name="edited_scene_root" type="Node" setter="set_edited_scene_root" getter="get_edited_scene_root">
 			The root of the edited scene.
 		</member>

editor/editor_export.cpp

@@ -371,6 +371,10 @@ void EditorExportPlatform::gen_debug_flags(Vector<String> &r_flags, int p_flags)
 		r_flags.push_back("--debug-avoidance");
 	}
 
+	if (p_flags & DEBUG_FLAG_VIEW_PATHS) {
+		r_flags.push_back("--debug-paths");
+	}
+
 	if (p_flags & DEBUG_FLAG_SHADER_FALLBACKS) {
 		r_flags.push_back("--debug-shader-fallbacks");
 	}
@@ -1301,6 +1305,10 @@ void EditorExportPlatform::gen_export_flags(Vector<String> &r_flags, int p_flags
 	if (p_flags & DEBUG_FLAG_VIEW_AVOIDANCE) {
 		r_flags.push_back("--debug-avoidance");
 	}
+
+	if (p_flags & DEBUG_FLAG_VIEW_PATHS) {
+		r_flags.push_back("--debug-paths");
+	}
 }
 EditorExportPlatform::EditorExportPlatform() {
 }

editor/editor_export.h

@@ -322,7 +322,8 @@ public:
 		DEBUG_FLAG_VIEW_COLLISONS = 8,
 		DEBUG_FLAG_VIEW_NAVIGATION = 16,
 		DEBUG_FLAG_VIEW_AVOIDANCE = 32,
-		DEBUG_FLAG_SHADER_FALLBACKS = 64,
+		DEBUG_FLAG_VIEW_PATHS = 64,
+		DEBUG_FLAG_SHADER_FALLBACKS = 128,
 	};
 
 	virtual Error run(const Ref<EditorExportPreset> &p_preset, int p_device, int p_debug_flags) { return OK; }

editor/editor_node.cpp

@@ -2777,6 +2777,14 @@ void EditorNode::_menu_option_confirm(int p_option, bool p_confirmed) {
 			editor_run.set_debug_avoidance(!ischecked);
 			EditorSettings::get_singleton()->set_project_metadata("debug_options", "run_debug_avoidance", !ischecked);
 
+		} break;
+		case RUN_DEBUG_PATHS: {
+			bool ischecked = debug_menu->get_popup()->is_item_checked(debug_menu->get_popup()->get_item_index(RUN_DEBUG_PATHS));
+			debug_menu->get_popup()->set_item_checked(debug_menu->get_popup()->get_item_index(RUN_DEBUG_PATHS), !ischecked);
+			run_native->set_debug_paths(!ischecked);
+			editor_run.set_debug_paths(!ischecked);
+			EditorSettings::get_singleton()->set_project_metadata("debug_options", "run_debug_paths", !ischecked);
+
 		} break;
 		case RUN_DEBUG_SHADER_FALLBACKS: {
 			bool ischecked = debug_menu->get_popup()->is_item_checked(debug_menu->get_popup()->get_item_index(RUN_DEBUG_SHADER_FALLBACKS));
@@ -3070,6 +3078,7 @@ void EditorNode::_update_debug_options() {
 	bool check_debug_collisons = EditorSettings::get_singleton()->get_project_metadata("debug_options", "run_debug_collisons", false);
 	bool check_debug_navigation = EditorSettings::get_singleton()->get_project_metadata("debug_options", "run_debug_navigation", false);
 	bool check_debug_avoidance = EditorSettings::get_singleton()->get_project_metadata("debug_options", "run_debug_avoidance", false);
+	bool check_debug_paths = EditorSettings::get_singleton()->get_project_metadata("debug_options", "run_debug_paths", false);
 	bool check_debug_shader_fallbacks = EditorSettings::get_singleton()->get_project_metadata("debug_options", "run_debug_shader_fallbacks", false);
 	bool check_live_debug = EditorSettings::get_singleton()->get_project_metadata("debug_options", "run_live_debug", true);
 	bool check_reload_scripts = EditorSettings::get_singleton()->get_project_metadata("debug_options", "run_reload_scripts", true);
@@ -3089,6 +3098,9 @@ void EditorNode::_update_debug_options() {
 	if (check_debug_avoidance) {
 		_menu_option_confirm(RUN_DEBUG_AVOIDANCE, true);
 	}
+	if (check_debug_paths) {
+		_menu_option_confirm(RUN_DEBUG_PATHS, true);
+	}
 	if (check_debug_shader_fallbacks) {
 		_menu_option_confirm(RUN_DEBUG_SHADER_FALLBACKS, true);
 	}
@@ -6528,6 +6540,10 @@ EditorNode::EditorNode() {
 			p->get_item_count() - 1,
 			TTR("When this option is enabled, avoidance debug information will be visible in the running project."));
 
+	p->add_check_shortcut(ED_SHORTCUT("editor/visible_paths", TTR("Visible Paths")), RUN_DEBUG_PATHS);
+	p->set_item_tooltip(-1,
+			TTR("When this option is enabled, curve resources used by path nodes will be visible in the running project."));
+
 	if (GLOBAL_GET("rendering/quality/driver/driver_name") == "GLES3") {
 		p->add_separator();
 

editor/editor_node.h

@@ -448,6 +448,7 @@ private:
 		RUN_DEBUG_COLLISONS,
 		RUN_DEBUG_NAVIGATION,
 		RUN_DEBUG_AVOIDANCE,
+		RUN_DEBUG_PATHS,
 		RUN_DEBUG_SHADER_FALLBACKS,
 		RUN_DEPLOY_REMOTE_DEBUG,
 		RUN_RELOAD_SCRIPTS,

editor/editor_run.cpp

@@ -94,6 +94,10 @@ Error EditorRun::run(const String &p_scene, const String &p_custom_args, const L
 		args.push_back("--debug-avoidance");
 	}
 
+	if (debug_paths) {
+		args.push_back("--debug-paths");
+	}
+
 	if (debug_shader_fallbacks) {
 		args.push_back("--debug-shader-fallbacks");
 	}
@@ -309,6 +313,14 @@ bool EditorRun::get_debug_avoidance() const {
 	return debug_avoidance;
 }
 
+void EditorRun::set_debug_paths(bool p_debug) {
+	debug_paths = p_debug;
+}
+
+bool EditorRun::get_debug_paths() const {
+	return debug_paths;
+}
+
 void EditorRun::set_debug_shader_fallbacks(bool p_debug) {
 	debug_shader_fallbacks = p_debug;
 }
@@ -323,5 +335,6 @@ EditorRun::EditorRun() {
 	debug_collisions = false;
 	debug_navigation = false;
 	debug_avoidance = false;
+	debug_paths = false;
 	debug_shader_fallbacks = false;
 }

editor/editor_run.h

@@ -51,6 +51,7 @@ private:
 	bool debug_collisions;
 	bool debug_navigation;
 	bool debug_avoidance;
+	bool debug_paths;
 	bool debug_shader_fallbacks;
 	Status status;
 	String running_scene;
@@ -73,6 +74,9 @@ public:
 	void set_debug_avoidance(bool p_debug);
 	bool get_debug_avoidance() const;
 
+	void set_debug_paths(bool p_debug);
+	bool get_debug_paths() const;
+
 	void set_debug_shader_fallbacks(bool p_debug);
 	bool get_debug_shader_fallbacks() const;
 

editor/editor_run_native.cpp

@@ -159,6 +159,9 @@ void EditorRunNative::_run_native(int p_idx, int p_platform) {
 	if (debug_avoidance) {
 		flags |= EditorExportPlatform::DEBUG_FLAG_VIEW_AVOIDANCE;
 	}
+	if (debug_paths) {
+		flags |= EditorExportPlatform::DEBUG_FLAG_VIEW_PATHS;
+	}
 	if (debug_shader_fallbacks) {
 		flags |= EditorExportPlatform::DEBUG_FLAG_SHADER_FALLBACKS;
 	}
@@ -221,6 +224,14 @@ bool EditorRunNative::get_debug_avoidance() const {
 	return debug_avoidance;
 }
 
+void EditorRunNative::set_debug_paths(bool p_debug) {
+	debug_paths = p_debug;
+}
+
+bool EditorRunNative::get_debug_paths() const {
+	return debug_paths;
+}
+
 void EditorRunNative::set_debug_shader_fallbacks(bool p_debug) {
 	debug_shader_fallbacks = p_debug;
 }
@@ -246,6 +257,7 @@ EditorRunNative::EditorRunNative() {
 	debug_collisions = false;
 	debug_navigation = false;
 	debug_avoidance = false;
+	debug_paths = false;
 	debug_shader_fallbacks = false;
 	resume_idx = 0;
 	resume_platform = 0;

editor/editor_run_native.h

@@ -52,6 +52,7 @@ class EditorRunNative : public HBoxContainer {
 	bool debug_collisions;
 	bool debug_navigation;
 	bool debug_avoidance;
+	bool debug_paths;
 	bool debug_shader_fallbacks;
 
 	int resume_idx;
@@ -79,6 +80,9 @@ public:
 	void set_debug_avoidance(bool p_debug);
 	bool get_debug_avoidance() const;
 
+	void set_debug_paths(bool p_debug);
+	bool get_debug_paths() const;
+
 	void set_debug_shader_fallbacks(bool p_debug);
 	bool get_debug_shader_fallbacks() const;
 

main/main.cpp

@@ -160,6 +160,7 @@ static bool use_debug_profiler = false;
 static bool debug_collisions = false;
 static bool debug_navigation = false;
 static bool debug_avoidance = false;
+static bool debug_paths = false;
 static bool debug_shader_fallbacks = false;
 #endif
 static int frame_delay = 0;
@@ -376,7 +377,8 @@ void Main::print_help(const char *p_binary) {
 #if defined(DEBUG_ENABLED) && !defined(SERVER_ENABLED)
 	OS::get_singleton()->print("  --debug-collisions               Show collision shapes when running the scene.\n");
 	OS::get_singleton()->print("  --debug-navigation               Show navigation polygons when running the scene.\n");
-	OS::get_singleton()->print("  --debug-avoidance                 Show navigation polygons when running the scene.\n");
+	OS::get_singleton()->print("  --debug-avoidance                Show navigation polygons when running the scene.\n");
+	OS::get_singleton()->print("  --debug-paths                    Show path lines when running the scene.\n");
 	OS::get_singleton()->print("  --debug-shader-fallbacks         Use the fallbacks of the shaders which have one when running the scene (GL ES 3 only).\n");
 #endif
 	OS::get_singleton()->print("  --frame-delay <ms>               Simulate high CPU load (delay each frame by <ms> milliseconds).\n");
@@ -916,6 +918,8 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
 			debug_navigation = true;
 		} else if (I->get() == "--debug-avoidance") {
 			debug_avoidance = true;
+		} else if (I->get() == "--debug-paths") {
+			debug_paths = true;
 		} else if (I->get() == "--debug-shader-fallbacks") {
 			debug_shader_fallbacks = true;
 #endif
@@ -1936,6 +1940,9 @@ bool Main::start() {
 		if (debug_avoidance) {
 			sml->set_debug_avoidance_hint(true);
 		}
+		if (debug_paths) {
+			sml->set_debug_paths_hint(true);
+		}
 		if (debug_navigation || debug_avoidance) {
 			NavigationServer::get_singleton()->set_active(true);
 			NavigationServer::get_singleton()->set_debug_enabled(true);

scene/2d/path_2d.cpp

@@ -91,7 +91,7 @@ void Path2D::_notification(int p_what) {
 	if (p_what == NOTIFICATION_DRAW && curve.is_valid()) {
 		//draw the curve!!
 
-		if (!Engine::get_singleton()->is_editor_hint() && !get_tree()->is_debugging_navigation_hint()) {
+		if (!Engine::get_singleton()->is_editor_hint() && !get_tree()->is_debugging_paths_hint()) {
 			return;
 		}
 
@@ -100,11 +100,10 @@ void Path2D::_notification(int p_what) {
 		}
 
 #ifdef TOOLS_ENABLED
-		const float line_width = 2 * EDSCALE;
+		const float line_width = get_tree()->get_debug_paths_width() * EDSCALE;
 #else
-		const float line_width = 2;
+		const float line_width = get_tree()->get_debug_paths_width();
 #endif
-		const Color color = Color(1.0, 1.0, 1.0, 1.0);
 
 		_cached_draw_pts.resize(curve->get_point_count() * 8);
 		int count = 0;
@@ -117,7 +116,7 @@ void Path2D::_notification(int p_what) {
 			}
 		}
 
-		draw_polyline(_cached_draw_pts, color, line_width, true);
+		draw_polyline(_cached_draw_pts, get_tree()->get_debug_paths_color(), line_width, true);
 	}
 }
 
@@ -126,7 +125,7 @@ void Path2D::_curve_changed() {
 		return;
 	}
 
-	if (!Engine::get_singleton()->is_editor_hint() && !get_tree()->is_debugging_navigation_hint()) {
+	if (!Engine::get_singleton()->is_editor_hint() && !get_tree()->is_debugging_paths_hint()) {
 		return;
 	}
 

scene/3d/path.cpp

@@ -32,9 +32,97 @@
 
 #include "core/config/engine.h"
 #include "scene/resources/curve.h"
+#include "scene/resources/mesh.h"
+#include "scene/resources/world_3d.h"
 #include "scene/scene_string_names.h"
+#include "servers/rendering_server.h"
+
+Path::Path() {
+	SceneTree *st = SceneTree::get_singleton();
+	if (st && st->is_debugging_paths_hint()) {
+		debug_instance = RS::get_singleton()->instance_create();
+		set_notify_transform(true);
+	}
+
+	set_curve(Ref<Curve3D>(memnew(Curve3D))); //create one by default
+}
+
+Path::~Path() {
+	if (debug_instance.is_valid()) {
+		RS::get_singleton()->free(debug_instance);
+	}
+	if (debug_mesh.is_valid()) {
+		RS::get_singleton()->free(debug_mesh->get_rid());
+	}
+}
 
 void Path::_notification(int p_what) {
+	switch (p_what) {
+		case NOTIFICATION_ENTER_TREE: {
+			SceneTree *st = SceneTree::get_singleton();
+			if (st && st->is_debugging_paths_hint()) {
+				_update_debug_mesh();
+			}
+		} break;
+
+		case NOTIFICATION_EXIT_TREE: {
+			SceneTree *st = SceneTree::get_singleton();
+			if (st && st->is_debugging_paths_hint()) {
+				RS::get_singleton()->instance_set_visible(debug_instance, false);
+			}
+		} break;
+
+		case NOTIFICATION_TRANSFORM_CHANGED: {
+			if (is_inside_tree() && debug_instance.is_valid()) {
+				RS::get_singleton()->instance_set_transform(debug_instance, get_global_transform());
+			}
+		} break;
+	}
+}
+
+void Path::_update_debug_mesh() {
+	SceneTree *st = SceneTree::get_singleton();
+	if (!(st && st->is_debugging_paths_hint())) {
+		return;
+	}
+
+	if (!debug_mesh.is_valid()) {
+		debug_mesh = Ref<ArrayMesh>(memnew(ArrayMesh));
+	}
+
+	if (!(curve.is_valid())) {
+		RS::get_singleton()->instance_set_visible(debug_instance, false);
+		return;
+	}
+	if (curve->get_point_count() < 2) {
+		RS::get_singleton()->instance_set_visible(debug_instance, false);
+		return;
+	}
+
+	Vector<Vector3> vertex_array;
+
+	for (int i = 1; i < curve->get_point_count(); i++) {
+		Vector3 line_end = curve->get_point_position(i);
+		Vector3 line_start = curve->get_point_position(i - 1);
+		vertex_array.push_back(line_start);
+		vertex_array.push_back(line_end);
+	}
+
+	Array mesh_array;
+	mesh_array.resize(Mesh::ARRAY_MAX);
+	mesh_array[Mesh::ARRAY_VERTEX] = vertex_array;
+
+	debug_mesh->clear_surfaces();
+	debug_mesh->add_surface_from_arrays(Mesh::PRIMITIVE_LINES, mesh_array);
+
+	RS::get_singleton()->instance_set_base(debug_instance, debug_mesh->get_rid());
+	RS::get_singleton()->mesh_surface_set_material(debug_mesh->get_rid(), 0, st->get_debug_paths_material()->get_rid());
+
+	if (is_inside_tree()) {
+		RS::get_singleton()->instance_set_scenario(debug_instance, get_world_3d()->get_scenario());
+		RS::get_singleton()->instance_set_transform(debug_instance, get_global_transform());
+		RS::get_singleton()->instance_set_visible(debug_instance, is_visible_in_tree());
+	}
 }
 
 void Path::_curve_changed() {
@@ -55,6 +143,11 @@ void Path::_curve_changed() {
 			}
 		}
 	}
+
+	SceneTree *st = SceneTree::get_singleton();
+	if (st && st->is_debugging_paths_hint()) {
+		_update_debug_mesh();
+	}
 }
 
 void Path::set_curve(const Ref<Curve3D> &p_curve) {
@@ -84,10 +177,6 @@ void Path::_bind_methods() {
 	ADD_SIGNAL(MethodInfo("curve_changed"));
 }
 
-Path::Path() {
-	set_curve(Ref<Curve3D>(memnew(Curve3D))); //create one by default
-}
-
 //////////////
 
 void PathFollow::_update_transform(bool p_update_xyz_rot) {

scene/3d/path.h

@@ -42,6 +42,12 @@ class Path : public Spatial {
 
 	void _curve_changed();
 
+	RID debug_instance;
+	Ref<ArrayMesh> debug_mesh;
+
+private:
+	void _update_debug_mesh();
+
 protected:
 	void _notification(int p_what);
 	static void _bind_methods();
@@ -51,6 +57,7 @@ public:
 	Ref<Curve3D> get_curve() const;
 
 	Path();
+	~Path();
 };
 
 class PathFollow : public Spatial {

scene/main/scene_tree.cpp

@@ -992,6 +992,15 @@ void SceneTree::set_debug_avoidance_hint(bool p_enabled) {
 bool SceneTree::is_debugging_avoidance_hint() const {
 	return debug_avoidance_hint;
 }
+
+void SceneTree::set_debug_paths_hint(bool p_enabled) {
+	debug_paths_hint = p_enabled;
+}
+
+bool SceneTree::is_debugging_paths_hint() const {
+	return debug_paths_hint;
+}
+
 #endif
 
 void SceneTree::set_debug_collisions_color(const Color &p_color) {
@@ -1010,6 +1019,39 @@ Color SceneTree::get_debug_collision_contact_color() const {
 	return debug_collision_contact_color;
 }
 
+void SceneTree::set_debug_paths_color(const Color &p_color) {
+	debug_paths_color = p_color;
+}
+
+Color SceneTree::get_debug_paths_color() const {
+	return debug_paths_color;
+}
+
+void SceneTree::set_debug_paths_width(float p_width) {
+	debug_paths_width = p_width;
+}
+
+float SceneTree::get_debug_paths_width() const {
+	return debug_paths_width;
+}
+
+Ref<Material> SceneTree::get_debug_paths_material() {
+	if (debug_paths_material.is_valid()) {
+		return debug_paths_material;
+	}
+
+	Ref<SpatialMaterial> _debug_material = Ref<SpatialMaterial>(memnew(SpatialMaterial));
+	_debug_material->set_flag(SpatialMaterial::FLAG_UNSHADED, true);
+	_debug_material->set_feature(SpatialMaterial::FEATURE_TRANSPARENT, true);
+	_debug_material->set_flag(SpatialMaterial::FLAG_SRGB_VERTEX_COLOR, true);
+	_debug_material->set_flag(SpatialMaterial::FLAG_ALBEDO_FROM_VERTEX_COLOR, true);
+	_debug_material->set_albedo(get_debug_paths_color());
+
+	debug_paths_material = _debug_material;
+
+	return debug_paths_material;
+}
+
 Ref<Material> SceneTree::get_debug_collision_material() {
 	_THREAD_SAFE_METHOD_
 
@@ -2152,6 +2194,8 @@ void SceneTree::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("is_debugging_navigation_hint"), &SceneTree::is_debugging_navigation_hint);
 	ClassDB::bind_method(D_METHOD("set_debug_avoidance_hint", "enable"), &SceneTree::set_debug_avoidance_hint);
 	ClassDB::bind_method(D_METHOD("is_debugging_avoidance_hint"), &SceneTree::is_debugging_avoidance_hint);
+	ClassDB::bind_method(D_METHOD("set_debug_paths_hint", "enable"), &SceneTree::set_debug_paths_hint);
+	ClassDB::bind_method(D_METHOD("is_debugging_paths_hint"), &SceneTree::is_debugging_paths_hint);
 
 	ClassDB::bind_method(D_METHOD("set_edited_scene_root", "scene"), &SceneTree::set_edited_scene_root);
 	ClassDB::bind_method(D_METHOD("get_edited_scene_root"), &SceneTree::get_edited_scene_root);
@@ -2233,6 +2277,7 @@ void SceneTree::_bind_methods() {
 
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "debug_collisions_hint"), "set_debug_collisions_hint", "is_debugging_collisions_hint");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "debug_navigation_hint"), "set_debug_navigation_hint", "is_debugging_navigation_hint");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "debug_paths_hint"), "set_debug_paths_hint", "is_debugging_paths_hint");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "paused"), "set_pause", "is_paused");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "refuse_new_network_connections"), "set_refuse_new_network_connections", "is_refusing_new_network_connections");
 	ADD_PROPERTY_DEFAULT("refuse_new_network_connections", false);
@@ -2356,9 +2401,12 @@ SceneTree::SceneTree() {
 	debug_collisions_hint = false;
 	debug_navigation_hint = false;
 	debug_avoidance_hint = false;
+	debug_paths_hint = false;
 #endif
 	debug_collisions_color = GLOBAL_DEF("debug/shapes/collision/shape_color", Color(0.0, 0.6, 0.7, 0.42));
 	debug_collision_contact_color = GLOBAL_DEF("debug/shapes/collision/contact_color", Color(1.0, 0.2, 0.1, 0.8));
+	debug_paths_color = GLOBAL_DEF("debug/shapes/paths/geometry_color", Color(0.1, 1.0, 0.7, 0.4));
+	debug_paths_width = GLOBAL_DEF("debug/shapes/paths/geometry_width", 2.0);
 	collision_debug_contacts = GLOBAL_DEF("debug/shapes/collision/max_contacts_displayed", 10000);
 	ProjectSettings::get_singleton()->set_custom_property_info("debug/shapes/collision/max_contacts_displayed", PropertyInfo(Variant::INT, "debug/shapes/collision/max_contacts_displayed", PROPERTY_HINT_RANGE, "0,20000,1")); // No negative
 

scene/main/scene_tree.h

@@ -119,6 +119,7 @@ private:
 	bool debug_collisions_hint;
 	bool debug_navigation_hint;
 	bool debug_avoidance_hint;
+	bool debug_paths_hint;
 #endif
 	bool pause;
 	int root_lock;
@@ -182,9 +183,12 @@ private:
 	Color debug_collision_contact_color;
 	Color debug_navigation_color;
 	Color debug_navigation_disabled_color;
+	Color debug_paths_color;
+	float debug_paths_width = 1.0f;
 	Ref<ArrayMesh> debug_contact_mesh;
 	Ref<Material> navigation_material;
 	Ref<Material> navigation_disabled_material;
+	Ref<Material> debug_paths_material;
 	Ref<Material> collision_material;
 	int collision_debug_contacts;
 
@@ -356,6 +360,9 @@ public:
 
 	void set_debug_avoidance_hint(bool p_enabled);
 	bool is_debugging_avoidance_hint() const;
+
+	void set_debug_paths_hint(bool p_enabled);
+	bool is_debugging_paths_hint() const;
 #else
 	void set_debug_collisions_hint(bool p_enabled) {}
 	bool is_debugging_collisions_hint() const {
@@ -371,6 +378,11 @@ public:
 	bool is_debugging_avoidance_hint() const {
 		return false;
 	}
+
+	void set_debug_paths_hint(bool p_enabled) {}
+	bool is_debugging_paths_hint() const {
+		return false;
+	}
 #endif
 
 	void set_debug_collisions_color(const Color &p_color);
@@ -379,6 +391,13 @@ public:
 	void set_debug_collision_contact_color(const Color &p_color);
 	Color get_debug_collision_contact_color() const;
 
+	void set_debug_paths_color(const Color &p_color);
+	Color get_debug_paths_color() const;
+
+	void set_debug_paths_width(float p_width);
+	float get_debug_paths_width() const;
+
+	Ref<Material> get_debug_paths_material();
 	Ref<Material> get_debug_collision_material();
 	Ref<ArrayMesh> get_debug_contact_mesh();