+ low="4" high="14" default="9"/>
+
+<!--
+ On a 2.93 gHz iMac i7, I get these rates with -delay 0:
+
+ detail 3: invisible
+ detail 4: barely visible
+ detail 5: 1000+ fps, looks like noise at -delay 0, ok at -delay 20000
+ detail 8: ~700+ fps
+ detail 9: ~400 fps
+ detail 10: ~300 fps
+ detail 11: ~100 fps
+ detail 12: ~50 fps
+ detail 13: ~17 fps
+ detail 14: ~8 fps
+ detail 15: ~2 fps