diff --git a/doc/classes/Vector4.xml b/doc/classes/Vector4.xml
index 743e2c2fcc0..fdc93f82ec9 100644
--- a/doc/classes/Vector4.xml
+++ b/doc/classes/Vector4.xml
@@ -28,7 +28,7 @@
 			<return type="Vector4" />
 			<param index="0" name="from" type="Vector4i" />
 			<description>
-				Constructs a new [Vector4] from [Vector4i].
+				Constructs a new [Vector4] from the given [Vector4i].
 			</description>
 		</constructor>
 		<constructor name="Vector4">
diff --git a/doc/classes/Vector4i.xml b/doc/classes/Vector4i.xml
index 9a36c3c4fa8..3eea93ce1fc 100644
--- a/doc/classes/Vector4i.xml
+++ b/doc/classes/Vector4i.xml
@@ -1,8 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <class name="Vector4i" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
+		Vector used for 4D math using integer coordinates.
 	</brief_description>
 	<description>
+		4-element structure that can be used to represent 4D grid coordinates or sets of integers.
+		It uses integer coordinates. See [Vector4] for its floating-point counterpart.
 	</description>
 	<tutorials>
 	</tutorials>
@@ -10,18 +13,21 @@
 		<constructor name="Vector4i">
 			<return type="Vector4i" />
 			<description>
+				Constructs a default-initialized [Vector4i] with all components set to [code]0[/code].
 			</description>
 		</constructor>
 		<constructor name="Vector4i">
 			<return type="Vector4i" />
 			<param index="0" name="from" type="Vector4i" />
 			<description>
+				Constructs a [Vector4i] as a copy of the given [Vector4i].
 			</description>
 		</constructor>
 		<constructor name="Vector4i">
 			<return type="Vector4i" />
 			<param index="0" name="from" type="Vector4" />
 			<description>
+				Constructs a new [Vector4i] from the given [Vector4].
 			</description>
 		</constructor>
 		<constructor name="Vector4i">
@@ -31,6 +37,7 @@
 			<param index="2" name="z" type="int" />
 			<param index="3" name="w" type="int" />
 			<description>
+				Returns a [Vector4i] with the given components.
 			</description>
 		</constructor>
 	</constructors>
@@ -38,6 +45,7 @@
 		<method name="abs" qualifiers="const">
 			<return type="Vector4i" />
 			<description>
+				Returns a new vector with all components in absolute values (i.e. positive).
 			</description>
 		</method>
 		<method name="clamp" qualifiers="const">
@@ -45,56 +53,72 @@
 			<param index="0" name="min" type="Vector4i" />
 			<param index="1" name="max" type="Vector4i" />
 			<description>
+				Returns a new vector with all components clamped between the components of [param min] and [param max], by running [method @GlobalScope.clamp] on each component.
 			</description>
 		</method>
 		<method name="length" qualifiers="const">
 			<return type="float" />
 			<description>
+				Returns the length (magnitude) of this vector.
 			</description>
 		</method>
 		<method name="length_squared" qualifiers="const">
 			<return type="int" />
 			<description>
+				Returns the squared length (squared magnitude) of this vector. This method runs faster than [method length].
 			</description>
 		</method>
 		<method name="max_axis_index" qualifiers="const">
 			<return type="int" />
 			<description>
+				Returns the axis of the vector's highest value. See [code]AXIS_*[/code] constants. If all components are equal, this method returns [constant AXIS_X].
 			</description>
 		</method>
 		<method name="min_axis_index" qualifiers="const">
 			<return type="int" />
 			<description>
+				Returns the axis of the vector's lowest value. See [code]AXIS_*[/code] constants. If all components are equal, this method returns [constant AXIS_W].
 			</description>
 		</method>
 		<method name="sign" qualifiers="const">
 			<return type="Vector4i" />
 			<description>
+				Returns a new vector with each component set to one or negative one, depending on the signs of the components, or zero if the component is zero, by calling [method @GlobalScope.sign] on each component.
 			</description>
 		</method>
 	</methods>
 	<members>
 		<member name="w" type="int" setter="" getter="" default="0">
+			The vector's W component. Also accessible by using the index position [code][3][/code].
 		</member>
 		<member name="x" type="int" setter="" getter="" default="0">
+			The vector's X component. Also accessible by using the index position [code][0][/code].
 		</member>
 		<member name="y" type="int" setter="" getter="" default="0">
+			The vector's Y component. Also accessible by using the index position [code][1][/code].
 		</member>
 		<member name="z" type="int" setter="" getter="" default="0">
+			The vector's Z component. Also accessible by using the index position [code][2][/code].
 		</member>
 	</members>
 	<constants>
 		<constant name="AXIS_X" value="0">
+			Enumerated value for the X axis. Returned by [method max_axis_index] and [method min_axis_index].
 		</constant>
 		<constant name="AXIS_Y" value="1">
+			Enumerated value for the Y axis. Returned by [method max_axis_index] and [method min_axis_index].
 		</constant>
 		<constant name="AXIS_Z" value="2">
+			Enumerated value for the Z axis. Returned by [method max_axis_index] and [method min_axis_index].
 		</constant>
 		<constant name="AXIS_W" value="3">
+			Enumerated value for the W axis. Returned by [method max_axis_index] and [method min_axis_index].
 		</constant>
 		<constant name="ZERO" value="Vector4i(0, 0, 0, 0)">
+			Zero vector, a vector with all components set to [code]0[/code].
 		</constant>
 		<constant name="ONE" value="Vector4i(1, 1, 1, 1)">
+			One vector, a vector with all components set to [code]1[/code].
 		</constant>
 	</constants>
 	<operators>
@@ -102,6 +126,7 @@
 			<return type="bool" />
 			<param index="0" name="right" type="Vector4i" />
 			<description>
+				Returns [code]true[/code] if the vectors are not equal.
 			</description>
 		</operator>
 		<operator name="operator %">
@@ -120,94 +145,130 @@
 			<return type="Vector4i" />
 			<param index="0" name="right" type="Vector4i" />
 			<description>
+				Multiplies each component of the [Vector4i] by the components of the given [Vector4i].
+				[codeblock]
+				print(Vector4i(10, 20, 30, 40) * Vector4i(3, 4, 5, 6)) # Prints "(30, 80, 150, 240)"
+				[/codeblock]
 			</description>
 		</operator>
 		<operator name="operator *">
 			<return type="Vector4" />
 			<param index="0" name="right" type="float" />
 			<description>
+				Multiplies each component of the [Vector4i] by the given [float].
+				Returns a Vector4 value due to floating-point operations.
+				[codeblock]
+				print(Vector4i(10, 20, 30, 40) * 2) # Prints "(20, 40, 60, 80)"
+				[/codeblock]
 			</description>
 		</operator>
 		<operator name="operator *">
 			<return type="Vector4i" />
 			<param index="0" name="right" type="int" />
 			<description>
+				Multiplies each component of the [Vector4i] by the given [int].
 			</description>
 		</operator>
 		<operator name="operator +">
 			<return type="Vector4i" />
 			<param index="0" name="right" type="Vector4i" />
 			<description>
+				Adds each component of the [Vector4i] by the components of the given [Vector4i].
+				[codeblock]
+				print(Vector4i(10, 20, 30, 40) + Vector4i(3, 4, 5, 6)) # Prints "(13, 24, 35, 46)"
+				[/codeblock]
 			</description>
 		</operator>
 		<operator name="operator -">
 			<return type="Vector4i" />
 			<param index="0" name="right" type="Vector4i" />
 			<description>
+				Subtracts each component of the [Vector4i] by the components of the given [Vector4i].
+				[codeblock]
+				print(Vector4i(10, 20, 30, 40) - Vector4i(3, 4, 5, 6)) # Prints "(7, 16, 25, 34)"
+				[/codeblock]
 			</description>
 		</operator>
 		<operator name="operator /">
 			<return type="Vector4i" />
 			<param index="0" name="right" type="Vector4i" />
 			<description>
+				Divides each component of the [Vector4i] by the components of the given [Vector4i].
+				[codeblock]
+				print(Vector4i(10, 20, 30, 40) / Vector4i(2, 5, 3, 4)) # Prints "(5, 4, 10, 10)"
+				[/codeblock]
 			</description>
 		</operator>
 		<operator name="operator /">
 			<return type="Vector4" />
 			<param index="0" name="right" type="float" />
 			<description>
+				Divides each component of the [Vector4i] by the given [float].
+				Returns a Vector4 value due to floating-point operations.
+				[codeblock]
+				print(Vector4i(10, 20, 30, 40) / 2 # Prints "(5, 10, 15, 20)"
+				[/codeblock]
 			</description>
 		</operator>
 		<operator name="operator /">
 			<return type="Vector4i" />
 			<param index="0" name="right" type="int" />
 			<description>
+				Divides each component of the [Vector4i] by the given [int].
 			</description>
 		</operator>
 		<operator name="operator &lt;">
 			<return type="bool" />
 			<param index="0" name="right" type="Vector4i" />
 			<description>
+				Compares two [Vector4i] vectors by first checking if the X value of the left vector is less than the X value of the [param right] vector. If the X values are exactly equal, then it repeats this check with the Y values of the two vectors, Z values of the two vectors, and then with the W values. This operator is useful for sorting vectors.
 			</description>
 		</operator>
 		<operator name="operator &lt;=">
 			<return type="bool" />
 			<param index="0" name="right" type="Vector4i" />
 			<description>
+				Compares two [Vector4i] vectors by first checking if the X value of the left vector is less than or equal to the X value of the [param right] vector. If the X values are exactly equal, then it repeats this check with the Y values of the two vectors, Z values of the two vectors, and then with the W values. This operator is useful for sorting vectors.
 			</description>
 		</operator>
 		<operator name="operator ==">
 			<return type="bool" />
 			<param index="0" name="right" type="Vector4i" />
 			<description>
+				Returns [code]true[/code] if the vectors are exactly equal.
 			</description>
 		</operator>
 		<operator name="operator &gt;">
 			<return type="bool" />
 			<param index="0" name="right" type="Vector4i" />
 			<description>
+				Compares two [Vector4i] vectors by first checking if the X value of the left vector is greater than the X value of the [param right] vector. If the X values are exactly equal, then it repeats this check with the Y values of the two vectors, Z values of the two vectors, and then with the W values. This operator is useful for sorting vectors.
 			</description>
 		</operator>
 		<operator name="operator &gt;=">
 			<return type="bool" />
 			<param index="0" name="right" type="Vector4i" />
 			<description>
+				Compares two [Vector4i] vectors by first checking if the X value of the left vector is greater than or equal to the X value of the [param right] vector. If the X values are exactly equal, then it repeats this check with the Y values of the two vectors, Z values of the two vectors, and then with the W values. This operator is useful for sorting vectors.
 			</description>
 		</operator>
 		<operator name="operator []">
 			<return type="int" />
 			<param index="0" name="index" type="int" />
 			<description>
+				Access vector components using their [param index]. [code]v[0][/code] is equivalent to [code]v.x[/code], [code]v[1][/code] is equivalent to [code]v.y[/code], [code]v[2][/code] is equivalent to [code]v.z[/code], and [code]v[3][/code] is equivalent to [code]v.w[/code].
 			</description>
 		</operator>
 		<operator name="operator unary+">
 			<return type="Vector4i" />
 			<description>
+				Returns the same value as if the [code]+[/code] was not there. Unary [code]+[/code] does nothing, but sometimes it can make your code more readable.
 			</description>
 		</operator>
 		<operator name="operator unary-">
 			<return type="Vector4i" />
 			<description>
+				Returns the negative value of the [Vector4i]. This is the same as writing [code]Vector4i(-v.x, -v.y, -v.z, -v.w)[/code]. This operation flips the direction of the vector while keeping the same magnitude.
 			</description>
 		</operator>
 	</operators>