Anyway, in doing some research on the Oren Nayar (note to self, it's not Nayer) I came across a great resource at Dimension3 - A poster about Advanced lighting and shading with Direct3D9.
Worth a look if you're interested in such things - it's pretty dense, but a nice summary of a whole bunch of advanced lighting goodness [grin]
Did a hole magically appear in your bed that took you 4 hours to climb out or what? Or, maybe the bed expanded for miles in every direction?
Just wondering why it took 3.5 hours to get out of bed. :p