use displacement 3 times in mix material

[carterner]

does it possible use displacement 3 times in one mix material?
I found a web page
http://motionworks.net/pause-fest-2016-motion-response/

in his video show this node,but I didn't succeed

[aiven]

It is only the displacement map in the master Mix material which takes effect. The 2 displacement maps he has in the two first materials have no effect on the Mix material.

[RahiSan]

A workaround for this could be using the cinema 4d displacement modifier for the larger scale details and use the displacement material on top. I use this when making grass. Still, this is only two layers of displacement and you have to pretesselate.

[TonyBoy]

Is it true in Octane, that using displacement prevents the use of normal maps? A logical use to achieve what he wants is displacement for the greater details and a normal map for the finer ones.