[clutter] docs/cookbook: Point out that Cogl does not do AA drawing

[Emmanuele Bassi <ebassi src gnome org>]

commit a661191b4bdd0547810893d240c3a0cbd1b122f2
Author: Emmanuele Bassi <ebassi linux intel com>
Date:   Mon Aug 22 13:15:42 2011 +0100

    docs/cookbook: Point out that Cogl does not do AA drawing

 doc/cookbook/actors.xml |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/doc/cookbook/actors.xml b/doc/cookbook/actors.xml
index 4daff46..ce274b7 100644
--- a/doc/cookbook/actors.xml
+++ b/doc/cookbook/actors.xml
@@ -974,6 +974,12 @@ star_actor_pick (ClutterActor *actor,
           </listitem>
         </itemizedlist>
 
+        <para>One important drawback of using Cogl path primitives is that
+        they will not produce high quality results; more specifically,
+        Cogl does not draw anti-aliased primitives. It is recommended to use
+        the Cairo API to draw during the paint sequence, and the Cogl API
+        to draw during the pick sequence.</para>
+
         <para>If you need more flexibility than is available in the Cogl path
         API, you can make direct use of the <type>CoglVertexBuffer</type>
         API instead. This is a lower-level API, but could potentially