Document a few things

doc/classes/VoxelGeneratorWaves.xml

@@ -9,8 +9,10 @@
 	</tutorials>
 	<members>
 		<member name="pattern_offset" type="Vector2" setter="set_pattern_offset" getter="get_pattern_offset" default="Vector2(0, 0)">
+			Offset (or phase) of the waves.
 		</member>
 		<member name="pattern_size" type="Vector2" setter="set_pattern_size" getter="get_pattern_size" default="Vector2(30, 30)">
+			Length of the waves. Note that this only controls length across the X and Z axes. Height is controlled by [member VoxelGeneratorHeightmap.height_start] and [member VoxelGeneratorHeightmap.height_range].
 		</member>
 	</members>
 </class>

doc/classes/VoxelGraphFunction.xml

@@ -62,6 +62,7 @@
 			<return type="int" />
 			<param index="0" name="name" type="StringName" />
 			<description>
+				Finds a node with the specified name and returns its ID. If the node is not found, returns 0.
 			</description>
 		</method>
 		<method name="get_connections" qualifiers="const">
@@ -86,23 +87,27 @@
 			<return type="Vector2" />
 			<param index="0" name="node_id" type="int" />
 			<description>
+				Get the position of the node in the graph editor.
 			</description>
 		</method>
 		<method name="get_node_gui_size" qualifiers="const">
 			<return type="Vector2" />
 			<param index="0" name="node_id" type="int" />
 			<description>
+				Get the size of the node in the graph editor.
 			</description>
 		</method>
 		<method name="get_node_ids" qualifiers="const">
 			<return type="PackedInt32Array" />
 			<description>
+				Get a list of IDs of all the nodes in the graph.
 			</description>
 		</method>
 		<method name="get_node_name" qualifiers="const">
 			<return type="StringName" />
 			<param index="0" name="node_id" type="int" />
 			<description>
+				Gets the user-defined name of the node.
 			</description>
 		</method>
 		<method name="get_node_param" qualifiers="const">
@@ -222,6 +227,7 @@
 			<param index="0" name="node_id" type="int" />
 			<param index="1" name="size" type="Vector2" />
 			<description>
+				Sets the visual size of a node of the graph, as it will appear in the editor.
 			</description>
 		</method>
 		<method name="set_node_name">
@@ -238,13 +244,15 @@
 			<param index="1" name="param_index" type="int" />
 			<param index="2" name="value" type="Variant" />
 			<description>
+				Set a parameter of a node. The parameter index corresponds to the position that parameter comes in when seen in the editor.
 			</description>
 		</method>
 		<method name="set_node_param_null">
 			<return type="void" />
 			<param index="0" name="node_id" type="int" />
 			<param index="1" name="param_index" type="int" />
 			<description>
+				Set a parameter of a node to null. This method only exists to workaround an issue with Godot's UndoRedo system. Prefer using [method set_node_param].
 			</description>
 		</method>
 	</methods>

doc/classes/VoxelInstancer.xml

@@ -4,7 +4,7 @@
 		Spawns items on top of voxel surfaces.
 	</brief_description>
 	<description>
-		Add-on to voxel nodes, allowing to spawn elements on the surface. These elements are rendered with hardware instancing, can have collisions, and also be persistent. It must be child of a voxel node.
+		Add-on to voxel nodes, allowing to spawn static elements on the surface. These elements are rendered with hardware instancing, can have collisions, and also be persistent. It must be child of a voxel node.
 	</description>
 	<tutorials>
 	</tutorials>
@@ -52,16 +52,20 @@
 	</methods>
 	<members>
 		<member name="library" type="VoxelInstanceLibrary" setter="set_library" getter="get_library">
+			Library from which instances to spawn will be taken from.
 		</member>
 		<member name="up_mode" type="int" setter="set_up_mode" getter="get_up_mode" enum="VoxelInstancer.UpMode" default="0">
+			Where to consider the "up" direction is on the terrain when generating instances. See also [VoxelInstanceGenerator].
 		</member>
 	</members>
 	<constants>
 		<constant name="MAX_LOD" value="8">
 		</constant>
 		<constant name="UP_MODE_POSITIVE_Y" value="0" enum="UpMode">
+			Up is towards the positive Y axis. This is the default assumption in Godot.
 		</constant>
 		<constant name="UP_MODE_SPHERE" value="1" enum="UpMode">
+			Up is opposite from the direction where the terrain's origin is. May be used if your terrain is a planet for example.
 		</constant>
 		<constant name="DEBUG_DRAW_ALL_BLOCKS" value="0" enum="DebugDrawFlag">
 		</constant>