Take the 2-minute tour ×  I get a very poor Render in cycles.
Not just minor problems, but just a cloud of of black and white
dots and no contour at all. I read a lot about this now and
couldn't get it to work. Does anybody know how to get the
settings right. Or better what do I have to pay attention to get
better renders. I also tried external renderer like Lux, which
increased my CPU usage to 98 % (just the default cube and
clicking on Lux and load materials).  Is this normal and what
could i do to improve that.  I have various versions of Blender
(2.61,2.62,2.63) on Mac OS X.  Thanks for the time.
share|improve this question Any screenshots or .blend files? – 
Alex Yan Aug 28 '12 at 2:33 add comment  2 Answers  up vote 1
down vote accepted  Cycles is a brand new render system in
Blender and it is still under development. The first thing you
need to understand about Cycles is that it never stop to render
your image. So you need to tell it when to stop rendering. The
longer time, more passes, the better qua