Add a note about libIndirectGL.

svn path=/trunk/KDE/kdebase/workspace/; revision=724554

COMPOSITE_TODO

@@ -93,6 +93,8 @@ KDE 4.0 TODO
 
 ? __GL_YIELD=NOTHING
 
+? libIndirectGL.so
+
 - check what works with XRender
 
 - more notification functions for effects
@@ -211,6 +213,9 @@ OpenGL TODO
 % __GL_YIELD=NOTHING for NVidia reportedly improves perceived performance
     - it needs to be set somehow (http://lists.kde.org/?l=kwin&m=117794153720348&w=2)
 
+% LD_PRELOAD=/usr/lib/libIndirectGL.so.1 seems to noticeably improve smoothness
+    - (http://lists.kde.org/?t=119186684900004&r=1&w=2)
+
 
 XRender TODO
 ==============================