Reimagine Fx shows how to use the Arnold Utility to bake displacement maps to an object.
Long-time Maya users will know that you can convert displacements to geometry using the handy “Convert” under the Modify menu. There is another way too. With Arnold, you can also bake geometry; only it is even more convenient.
Check out this short walkthrough by Amar Shinde (Reimagine Fx) to show how you can bake displacement using Arnold’s Bake Selected Geometry utility.