Can anyone tell me how to export the displacement map and how to implement it in Redshift ?

Single frame render btw.

I'm a bit hesitant to recommend Saul's Patreon tutorials since he can be frustratingly slow with many minutes where you'll be yelling at the screen because he's overlooked something really obvious and he spends 15 minutes trying to figure out why his project isn't working.

Having said that, if you have the patience to sit through at least the first couple of hours of his Patreon Island course, you'll learn a great deal about rendering Houdini oceans in Redshift.

https://youtu.be/RVF2CcCw-1Y [youtu.be]

https://www.patreon.com/theartofsaul [www.patreon.com]

There is also this by Bubble Pins:

https://www.youtube.com/watch?v=zp4LDlIo1gU [www.youtube.com]