How to Bake a Displacement / Height Map from a High Poly to a Low Poly Mesh? I have this mesh with 7.5 million vertices:



And I also have a low poly version of it with 5 thousand vertices:



I just want to bake the detailed height information of the high poly model into a displacement map that I can use on the low poly model. Baking a normal map works just fine, but there is not option for baking actual height information: 



I found out that I can enable "Experimental" feature set for Cycles and then I have a "Displacement" option under "Bake from Multires". But there is not option to bake from selected to active, what I need.



If this is not possible in Blender what are my options?

Update 1

As suggested by Manu Järvinen I have tried using Blender 2.7 to do the displacement baking, but after baking is done I get a single-colored texture:



Initially I though this is an issue with the "Distance" but changing it does not help.
You should be able to use Blender 2.79b for baking the displacement until it is available in 2.8x

https://download.blender.org/release/Blender2.79/

Thanks for sending the .blend - it seems that your model was too small



So, when I scaled it to be roughly dimensions x=15, y=12 and z=8 and then applied the scales for both objects CTRL+A, the baking was successful with the values Distance: 0 and Bias: 0

And, you get even greater results if you scale it then with 10 and apply the scales.