a bit more info for tonemap property Material.html (#27923)

Made tonemapped property a bit more informative.

docs/api/en/materials/Material.html

@@ -340,7 +340,7 @@
 		<h3>[property:Boolean toneMapped]</h3>
 		<p>
 			Defines whether this material is tone mapped according to the renderer's			
-			[page:WebGLRenderer.toneMapping toneMapping] setting. It is ignored when rendering to a render target.
+			[page:WebGLRenderer.toneMapping toneMapping] setting. It is ignored when rendering to a render target or using post processing.
 			Default is `true`.
 		</p>