How to Delete an Attribute?
 

Hi.

Say I add.

NURBS Sphere to the grid.

Add a Lambert Material

Add a Bump Map


Now how do I delete the Lambert?

In the attributes editor, attributes -> delete attributes does nothing- it's blank.

Delete it in the hypershade.

First assign the default shader then delete the lambert in the hypershade...

Hypershade is a beast, for shaders just look around in it, it will solve a ton for you