Why my cairo-dock no 3D plane??
 

My cairo-dock only has default 2D plane. There is no choice for 3D plane and carrousel.....

Do you have applets installed?

If so you need to enable rendering.

And I really hope someone's already told you that in a PM, because I can't believe such a simple question has gone unanswered for 4 months.

What applets do you mean and where do you enable rendering? I can't seem to find what you mean. I have the same question.

Found it. In between the different applets form which you can choose to show in the bar, there's a applet called rendering.

Thanks.