thank you,

I will test with the addition of a light.

I have a problem for rendering picture.
I don't understand why there is no light on my picture.
I think all of my settings is correct.

I attach on this message 4 capture screen.

Thanks a lot for your help.

http://img4.hostingpics.net/pics/772613Capturedcran20131128161558.png

http://img4 ...