Spherical Displacement direction I am having problems getting displacement mapping to extrude in the correct direction on all sides of a sphere.  I have been following this tutorial: https://www.youtube.com/watch?v=n0r0UnaIK_Y 



UPDATED
You need to use the Vector/Displacement node now - instead of feeding a value directly into the Displacement socket. This is due to how the Displacement socket functionality has changed at the more recent versions of Blender (it’s a vector now, rather than a scalar.

See here.