--- ray/doc/ray.1	2003/03/11 19:29:04	1.2
+++ ray/doc/ray.1	2003/03/14 21:27:45	1.3
@@ -269,6 +269,9 @@ mod mesh id
 0
 0
 .DE
+If the modifier is "void", then surfaces will use the modifiers given
+in the original mesh description.
+Otherwise, the modifier specified is used in their place.
 The transform moves the mesh to the desired location in the scene.
 Multiple instances using the same meshfile take little extra memory,
 and the compiled mesh itself takes much less space than individual