--- a/ccdemos/spheres_shadow.cc	Sun Dec 09 10:45:26 2007 +0100
+++ b/ccdemos/spheres_shadow.cc	Sun Dec 09 13:31:38 2007 +0100
@@ -5,6 +5,8 @@
 {
 	Raytracer rt;
 	rt.setThreads(2);
+	rt.setOversample(0);
+	rt.setSubsample(8);
 
 	KdTree top;
 	rt.setTop(&top);