Added to Sprite3D Documentation

(cherry picked from commit f8f665b03e2c2b2a10ffcaf815c511cd31a70887)

doc/classes/Sprite3D.xml

@@ -27,7 +27,7 @@
 			The region of the atlas texture to display. [member region_enabled] must be [code]true[/code].
 		</member>
 		<member name="texture" type="Texture" setter="set_texture" getter="get_texture">
-			[Texture] object to draw. If [member GeometryInstance.material_override] is used, this will be overridden.
+			[Texture] object to draw. If [member GeometryInstance.material_override] is used, this will be overridden. The size information is still used.
 		</member>
 		<member name="vframes" type="int" setter="set_vframes" getter="get_vframes" default="1">
 			The number of rows in the sprite sheet.