diff --git a/doc/classes/RenderingServer.xml b/doc/classes/RenderingServer.xml
index 6133a8ec16..8fd16a3dbf 100644
--- a/doc/classes/RenderingServer.xml
+++ b/doc/classes/RenderingServer.xml
@@ -3559,7 +3559,7 @@
 			<param index="0" name="generate" type="bool" />
 			<description>
 				If [param generate] is [code]true[/code], generates debug wireframes for all meshes that are loaded when using the Compatibility renderer. By default, the engine does not generate debug wireframes at runtime, since they slow down loading of assets and take up VRAM.
-				[b]Note:[/b] You must call this method before loading any meshes when using the Compatibility renderer, otherwise wireframes will not be used.
+				[b]Note:[/b] You must call this method before loading any meshes when using the Compatibility renderer. Otherwise, wireframes will not be used.
 			</description>
 		</method>
 		<method name="set_default_clear_color">
@@ -5447,6 +5447,7 @@
 		<constant name="VIEWPORT_DEBUG_DRAW_WIREFRAME" value="4" enum="ViewportDebugDraw">
 			Debug draw draws objects in wireframe.
 			[b]Note:[/b] [method set_debug_generate_wireframes] must be called before loading any meshes for wireframes to be visible when using the Compatibility renderer.
+			[b]Note:[/b] In the Compatibility renderer, backfaces are always visible when using wireframe rendering. In the Forward+ and Mobile renderers, wireframes follow the material's backface culling properties instead.
 		</constant>
 		<constant name="VIEWPORT_DEBUG_DRAW_NORMAL_BUFFER" value="5" enum="ViewportDebugDraw">
 			Normal buffer is drawn instead of regular scene so you can see the per-pixel normals that will be used by post-processing effects.
diff --git a/doc/classes/Viewport.xml b/doc/classes/Viewport.xml
index e244951537..b2c1836480 100644
--- a/doc/classes/Viewport.xml
+++ b/doc/classes/Viewport.xml
@@ -662,6 +662,7 @@
 		<constant name="DEBUG_DRAW_WIREFRAME" value="4" enum="DebugDraw">
 			Objects are displayed as wireframe models.
 			[b]Note:[/b] [method RenderingServer.set_debug_generate_wireframes] must be called before loading any meshes for wireframes to be visible when using the Compatibility renderer.
+			[b]Note:[/b] In the Compatibility renderer, backfaces are always visible when using wireframe rendering. In the Forward+ and Mobile renderers, wireframes follow the material's backface culling properties instead.
 		</constant>
 		<constant name="DEBUG_DRAW_NORMAL_BUFFER" value="5" enum="DebugDraw">
 			Objects are displayed without lighting information and their textures replaced by normal mapping.