Cherry-picks for the 3.5 branch (future 3.5.3) - 1st batch

.github/workflows/javascript_builds.yml

@@ -22,7 +22,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Set up Emscripten latest
-        uses: mymindstorm/setup-emsdk@v11
+        uses: mymindstorm/setup-emsdk@v12
         with:
           version: ${{env.EM_VERSION}}
           actions-cache-folder: ${{env.EM_CACHE_FOLDER}}

core/math/basis.cpp

@@ -865,29 +865,28 @@ void Basis::get_axis_angle(Vector3 &r_axis, real_t &r_angle) const {
 #ifdef MATH_CHECKS
 	ERR_FAIL_COND(!is_rotation());
 #endif
-*/
-	real_t angle, x, y, z; // variables for result
-	real_t angle_epsilon = 0.1; // margin to distinguish between 0 and 180 degrees
-
-	if ((Math::abs(elements[1][0] - elements[0][1]) < CMP_EPSILON) && (Math::abs(elements[2][0] - elements[0][2]) < CMP_EPSILON) && (Math::abs(elements[2][1] - elements[1][2]) < CMP_EPSILON)) {
-		// singularity found
-		// first check for identity matrix which must have +1 for all terms
-		//  in leading diagonaland zero in other terms
-		if ((Math::abs(elements[1][0] + elements[0][1]) < angle_epsilon) && (Math::abs(elements[2][0] + elements[0][2]) < angle_epsilon) && (Math::abs(elements[2][1] + elements[1][2]) < angle_epsilon) && (Math::abs(elements[0][0] + elements[1][1] + elements[2][2] - 3) < angle_epsilon)) {
-			// this singularity is identity matrix so angle = 0
+	*/
+
+	// https://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm
+	real_t x, y, z; // Variables for result.
+	if (Math::is_zero_approx(elements[0][1] - elements[1][0]) && Math::is_zero_approx(elements[0][2] - elements[2][0]) && Math::is_zero_approx(elements[1][2] - elements[2][1])) {
+		// Singularity found.
+		// First check for identity matrix which must have +1 for all terms in leading diagonal and zero in other terms.
+		if (is_diagonal() && (Math::abs(elements[0][0] + elements[1][1] + elements[2][2] - 3) < 3 * CMP_EPSILON)) {
+			// This singularity is identity matrix so angle = 0.
 			r_axis = Vector3(0, 1, 0);
 			r_angle = 0;
 			return;
 		}
-		// otherwise this singularity is angle = 180
-		angle = Math_PI;
+		// Otherwise this singularity is angle = 180.
 		real_t xx = (elements[0][0] + 1) / 2;
 		real_t yy = (elements[1][1] + 1) / 2;
 		real_t zz = (elements[2][2] + 1) / 2;
-		real_t xy = (elements[1][0] + elements[0][1]) / 4;
-		real_t xz = (elements[2][0] + elements[0][2]) / 4;
-		real_t yz = (elements[2][1] + elements[1][2]) / 4;
-		if ((xx > yy) && (xx > zz)) { // elements[0][0] is the largest diagonal term
+		real_t xy = (elements[0][1] + elements[1][0]) / 4;
+		real_t xz = (elements[0][2] + elements[2][0]) / 4;
+		real_t yz = (elements[1][2] + elements[2][1]) / 4;
+
+		if ((xx > yy) && (xx > zz)) { // elements[0][0] is the largest diagonal term.
 			if (xx < CMP_EPSILON) {
 				x = 0;
 				y = Math_SQRT12;
@@ -897,7 +896,7 @@ void Basis::get_axis_angle(Vector3 &r_axis, real_t &r_angle) const {
 				y = xy / x;
 				z = xz / x;
 			}
-		} else if (yy > zz) { // elements[1][1] is the largest diagonal term
+		} else if (yy > zz) { // elements[1][1] is the largest diagonal term.
 			if (yy < CMP_EPSILON) {
 				x = Math_SQRT12;
 				y = 0;
@@ -907,7 +906,7 @@ void Basis::get_axis_angle(Vector3 &r_axis, real_t &r_angle) const {
 				x = xy / y;
 				z = yz / y;
 			}
-		} else { // elements[2][2] is the largest diagonal term so base result on this
+		} else { // elements[2][2] is the largest diagonal term so base result on this.
 			if (zz < CMP_EPSILON) {
 				x = Math_SQRT12;
 				y = Math_SQRT12;
@@ -919,22 +918,24 @@ void Basis::get_axis_angle(Vector3 &r_axis, real_t &r_angle) const {
 			}
 		}
 		r_axis = Vector3(x, y, z);
-		r_angle = angle;
+		r_angle = Math_PI;
 		return;
 	}
-	// as we have reached here there are no singularities so we can handle normally
-	real_t s = Math::sqrt((elements[1][2] - elements[2][1]) * (elements[1][2] - elements[2][1]) + (elements[2][0] - elements[0][2]) * (elements[2][0] - elements[0][2]) + (elements[0][1] - elements[1][0]) * (elements[0][1] - elements[1][0])); // s=|axis||sin(angle)|, used to normalise
+	// As we have reached here there are no singularities so we can handle normally.
+	double s = Math::sqrt((elements[2][1] - elements[1][2]) * (elements[2][1] - elements[1][2]) + (elements[0][2] - elements[2][0]) * (elements[0][2] - elements[2][0]) + (elements[1][0] - elements[0][1]) * (elements[1][0] - elements[0][1])); // Used to normalise.
 
-	angle = Math::acos((elements[0][0] + elements[1][1] + elements[2][2] - 1) / 2);
-	if (angle < 0) {
-		s = -s;
+	if (Math::abs(s) < CMP_EPSILON) {
+		// Prevent divide by zero, should not happen if matrix is orthogonal and should be caught by singularity test above.
+		s = 1;
 	}
+
 	x = (elements[2][1] - elements[1][2]) / s;
 	y = (elements[0][2] - elements[2][0]) / s;
 	z = (elements[1][0] - elements[0][1]) / s;
 
 	r_axis = Vector3(x, y, z);
-	r_angle = angle;
+	// acos does clamping.
+	r_angle = Math::acos((elements[0][0] + elements[1][1] + elements[2][2] - 1) / 2);
 }
 
 void Basis::set_quat(const Quat &p_quat) {

core/script_debugger_local.cpp

@@ -56,7 +56,7 @@ void ScriptDebuggerLocal::debug(ScriptLanguage *p_script, bool p_can_continue, b
 		// Cache options
 		String variable_prefix = options["variable_prefix"];
 
-		if (line == "") {
+		if (line.empty() && !feof(stdin)) {
 			print_line("\nDebugger Break, Reason: '" + p_script->debug_get_error() + "'");
 			print_line("*Frame " + itos(current_frame) + " - " + p_script->debug_get_stack_level_source(current_frame) + ":" + itos(p_script->debug_get_stack_level_line(current_frame)) + " in function '" + p_script->debug_get_stack_level_function(current_frame) + "'");
 			print_line("Enter \"help\" for assistance.");
@@ -185,7 +185,7 @@ void ScriptDebuggerLocal::debug(ScriptLanguage *p_script, bool p_can_continue, b
 				print_line("Added breakpoint at " + source + ":" + itos(linenr));
 			}
 
-		} else if (line == "q" || line == "quit") {
+		} else if (line == "q" || line == "quit" || (line.empty() && feof(stdin))) {
 			// Do not stop again on quit
 			clear_breakpoints();
 			ScriptDebugger::get_singleton()->set_depth(-1);

doc/classes/Area.xml

@@ -7,6 +7,7 @@
 		3D area that detects [CollisionObject] nodes overlapping, entering, or exiting. Can also alter or override local physics parameters (gravity, damping) and route audio to a custom audio bus.
 		To give the area its shape, add a [CollisionShape] or a [CollisionPolygon] node as a [i]direct[/i] child (or add multiple such nodes as direct children) of the area.
 		[b]Warning:[/b] See [ConcavePolygonShape] (also called "trimesh") for a warning about possibly unexpected behavior when using that shape for an area.
+		[b]Warning:[/b] With a non-uniform scale this node will probably not function as expected. Please make sure to keep its scale uniform (i.e. the same on all axes), and change the size(s) of its collision shape(s) instead.
 	</description>
 	<tutorials>
 		<link title="3D Platformer Demo">https://godotengine.org/asset-library/asset/125</link>

doc/classes/CPUParticles.xml

@@ -127,13 +127,16 @@
 			Animation speed randomness ratio.
 		</member>
 		<member name="color" type="Color" setter="set_color" getter="get_color" default="Color( 1, 1, 1, 1 )">
-			Each particle's initial color. To have particle display color in a [SpatialMaterial] make sure to set [member SpatialMaterial.vertex_color_use_as_albedo] to [code]true[/code].
+			Each particle's initial color.
+			[b]Note:[/b] [member color] multiplies the particle mesh's vertex colors. To have a visible effect on a [SpatialMaterial], [member SpatialMaterial.vertex_color_use_as_albedo] [i]must[/i] be [code]true[/code]. For a [ShaderMaterial], [code]ALBEDO *= COLOR.rgb;[/code] must be inserted in the shader's [code]fragment()[/code] function. Otherwise, [member color] will have no visible effect.
 		</member>
 		<member name="color_initial_ramp" type="Gradient" setter="set_color_initial_ramp" getter="get_color_initial_ramp">
 			Each particle's initial color will vary along this [GradientTexture] (multiplied with [member color]).
+			[b]Note:[/b] [member color_initial_ramp] multiplies the particle mesh's vertex colors. To have a visible effect on a [SpatialMaterial], [member SpatialMaterial.vertex_color_use_as_albedo] [i]must[/i] be [code]true[/code]. For a [ShaderMaterial], [code]ALBEDO *= COLOR.rgb;[/code] must be inserted in the shader's [code]fragment()[/code] function. Otherwise, [member color_initial_ramp] will have no visible effect.
 		</member>
 		<member name="color_ramp" type="Gradient" setter="set_color_ramp" getter="get_color_ramp">
 			Each particle's color will vary along this [GradientTexture] over its lifetime (multiplied with [member color]).
+			[b]Note:[/b] [member color_ramp] multiplies the particle mesh's vertex colors. To have a visible effect on a [SpatialMaterial], [member SpatialMaterial.vertex_color_use_as_albedo] [i]must[/i] be [code]true[/code]. For a [ShaderMaterial], [code]ALBEDO *= COLOR.rgb;[/code] must be inserted in the shader's [code]fragment()[/code] function. Otherwise, [member color_ramp] will have no visible effect.
 		</member>
 		<member name="damping" type="float" setter="set_param" getter="get_param" default="0.0">
 			The rate at which particles lose velocity.
@@ -155,6 +158,7 @@
 		</member>
 		<member name="emission_colors" type="PoolColorArray" setter="set_emission_colors" getter="get_emission_colors">
 			Sets the [Color]s to modulate particles by when using [constant EMISSION_SHAPE_POINTS] or [constant EMISSION_SHAPE_DIRECTED_POINTS].
+			[b]Note:[/b] [member emission_colors] multiplies the particle mesh's vertex colors. To have a visible effect on a [SpatialMaterial], [member SpatialMaterial.vertex_color_use_as_albedo] [i]must[/i] be [code]true[/code]. For a [ShaderMaterial], [code]ALBEDO *= COLOR.rgb;[/code] must be inserted in the shader's [code]fragment()[/code] function. Otherwise, [member emission_colors] will have no visible effect.
 		</member>
 		<member name="emission_normals" type="PoolVector3Array" setter="set_emission_normals" getter="get_emission_normals">
 			Sets the direction the particles will be emitted in when using [constant EMISSION_SHAPE_DIRECTED_POINTS].

doc/classes/CanvasItem.xml

@@ -289,7 +289,7 @@
 		<method name="get_canvas_transform" qualifiers="const">
 			<return type="Transform2D" />
 			<description>
-				Returns the transform matrix of this item's canvas.
+				Returns the transform from the coordinate system of the canvas, this item is in, to the [Viewport]s coordinate system.
 			</description>
 		</method>
 		<method name="get_global_mouse_position" qualifiers="const">
@@ -307,7 +307,7 @@
 		<method name="get_global_transform_with_canvas" qualifiers="const">
 			<return type="Transform2D" />
 			<description>
-				Returns the global transform matrix of this item in relation to the canvas.
+				Returns the transform from the local coordinate system of this [CanvasItem] to the [Viewport]s coordinate system.
 			</description>
 		</method>
 		<method name="get_local_mouse_position" qualifiers="const">
@@ -331,7 +331,7 @@
 		<method name="get_viewport_transform" qualifiers="const">
 			<return type="Transform2D" />
 			<description>
-				Returns this item's transform in relation to the viewport.
+				Returns the transform from the coordinate system of the canvas, this item is in, to the [Viewport]s embedders coordinate system.
 			</description>
 		</method>
 		<method name="get_world_2d" qualifiers="const">
@@ -367,7 +367,7 @@
 		<method name="is_visible_in_tree" qualifiers="const">
 			<return type="bool" />
 			<description>
-				Returns [code]true[/code] if the node is present in the [SceneTree], its [member visible] property is [code]true[/code] and all its antecedents are also visible. If any antecedent is hidden, this node will not be visible in the scene tree, and is consequently not drawn (see [method _draw]).
+				Returns [code]true[/code] if the node is present in the [SceneTree], its [member visible] property is [code]true[/code] and all its ancestors are also visible. If any ancestor is hidden, this node will not be visible in the scene tree, and is consequently not drawn (see [method _draw]).
 			</description>
 		</method>
 		<method name="make_canvas_position_local" qualifiers="const">
@@ -441,7 +441,7 @@
 			If [code]true[/code], the parent [CanvasItem]'s [member material] property is used as this one's material.
 		</member>
 		<member name="visible" type="bool" setter="set_visible" getter="is_visible" default="true">
-			If [code]true[/code], this [CanvasItem] is drawn. The node is only visible if all of its antecedents are visible as well (in other words, [method is_visible_in_tree] must return [code]true[/code]).
+			If [code]true[/code], this [CanvasItem] is drawn. The node is only visible if all of its ancestors are visible as well (in other words, [method is_visible_in_tree] must return [code]true[/code]).
 			[b]Note:[/b] For controls that inherit [Popup], the correct way to make them visible is to call one of the multiple [code]popup*()[/code] functions instead.
 		</member>
 	</members>

doc/classes/CanvasLayer.xml

@@ -18,6 +18,12 @@
 				Returns the RID of the canvas used by this layer.
 			</description>
 		</method>
+		<method name="get_final_transform" qualifiers="const">
+			<return type="Transform2D" />
+			<description>
+				Returns the transform from the [CanvasLayer]s coordinate system to the [Viewport]s coordinate system.
+			</description>
+		</method>
 		<method name="hide">
 			<return type="void" />
 			<description>

doc/classes/CollisionObject.xml

@@ -5,6 +5,7 @@
 	</brief_description>
 	<description>
 		CollisionObject is the base class for physics objects. It can hold any number of collision [Shape]s. Each shape must be assigned to a [i]shape owner[/i]. The CollisionObject can have any number of shape owners. Shape owners are not nodes and do not appear in the editor, but are accessible through code using the [code]shape_owner_*[/code] methods.
+		[b]Warning:[/b] With a non-uniform scale this node will probably not function as expected. Please make sure to keep its scale uniform (i.e. the same on all axes), and change the size(s) of its collision shape(s) instead.
 	</description>
 	<tutorials>
 	</tutorials>

doc/classes/CollisionPolygon.xml

@@ -5,6 +5,7 @@
 	</brief_description>
 	<description>
 		Allows editing a collision polygon's vertices on a selected plane. Can also set a depth perpendicular to that plane. This class is only available in the editor. It will not appear in the scene tree at run-time. Creates a [Shape] for gameplay. Properties modified during gameplay will have no effect.
+		[b]Warning:[/b] A non-uniformly scaled CollisionPolygon3D node will probably not function as expected. Please make sure to keep its scale uniform (i.e. the same on all axes), and change its [member polygon]'s vertices instead.
 	</description>
 	<tutorials>
 	</tutorials>

doc/classes/CollisionShape.xml

@@ -6,6 +6,7 @@
 	<description>
 		Editor facility for creating and editing collision shapes in 3D space. Set the [member shape] property to configure the shape. [b]IMPORTANT[/b]: this is an Editor-only helper to create shapes, use [method CollisionObject.shape_owner_get_shape] to get the actual shape.
 		You can use this node to represent all sorts of collision shapes, for example, add this to an [Area] to give it a detection shape, or add it to a [PhysicsBody] to create a solid object.
+		[b]Warning:[/b] A non-uniformly scaled CollisionShape3D node will probably not function as expected. Please make sure to keep its scale uniform (i.e. the same on all axes), and change the size of its [member shape] resource instead.
 	</description>
 	<tutorials>
 		<link title="Physics introduction">$DOCS_URL/tutorials/physics/physics_introduction.html</link>

doc/classes/KinematicBody.xml

@@ -7,6 +7,7 @@
 		Kinematic bodies are special types of bodies that are meant to be user-controlled. They are not affected by physics at all; to other types of bodies, such as a character or a rigid body, these are the same as a static body. However, they have two main uses:
 		[b]Simulated motion:[/b] When these bodies are moved manually, either from code or from an [AnimationPlayer] (with [member AnimationPlayer.playback_process_mode] set to "physics"), the physics will automatically compute an estimate of their linear and angular velocity. This makes them very useful for moving platforms or other AnimationPlayer-controlled objects (like a door, a bridge that opens, etc).
 		[b]Kinematic characters:[/b] KinematicBody also has an API for moving objects (the [method move_and_collide] and [method move_and_slide] methods) while performing collision tests. This makes them really useful to implement characters that collide against a world, but don't require advanced physics.
+		[b]Warning:[/b] With a non-uniform scale this node will probably not function as expected. Please make sure to keep its scale uniform (i.e. the same on all axes), and change the size(s) of its collision shape(s) instead.
 	</description>
 	<tutorials>
 		<link title="Kinematic character (2D)">$DOCS_URL/tutorials/physics/kinematic_character_2d.html</link>

doc/classes/NodePath.xml

@@ -15,6 +15,7 @@
 		@"." # The current node.
 		@".." # The parent node.
 		@"../C" # A sibling node C.
+		@"../.." # The grandparent node.
 		# A leading slash means it is absolute from the SceneTree.
 		@"/root" # Equivalent to get_tree().get_root().
 		@"/root/Main" # If your main scene's root node were named "Main".
@@ -96,7 +97,7 @@
 			<return type="String" />
 			<argument index="0" name="idx" type="int" />
 			<description>
-				Gets the resource or property name indicated by [code]idx[/code] (0 to [method get_subname_count]).
+				Gets the resource or property name indicated by [code]idx[/code] (0 to [method get_subname_count] - 1).
 				[codeblock]
 				var node_path = NodePath("Path2D/PathFollow2D/Sprite:texture:load_path")
 				print(node_path.get_subname(0)) # texture

doc/classes/OptionButton.xml

@@ -6,6 +6,7 @@
 	<description>
 		OptionButton is a type button that provides a selectable list of items when pressed. The item selected becomes the "current" item and is displayed as the button text.
 		See also [BaseButton] which contains common properties and methods associated with this node.
+		[b]Note:[/b] The ID values used for items are limited to 32 bits, not full 64 bits of [int]. This has a range of [code]-2^32[/code] to [code]2^32 - 1[/code], i.e. [code]-2147483648[/code] to [code]2147483647[/code].
 	</description>
 	<tutorials>
 	</tutorials>