Sea / ocean material, bump and displacement not showing

[left_starboard]

OK - So I am trying to create a PBR material for seawater surface for a boat project.
As I am new to both Rhino7 native render and PBR materials, I am shortcutting the process, by following the excellent tutorial by Tom Budd:

Everything is OK up until adding bumpy texture to the material.
The viewport rendering mode shows a bumpy surface, but rendered preview show only flat surface.
I have tried dozens and dozens of variations of mapping size and -type, no difference.
Adding the same turbulence texture as displacement map is the same: Shows in rendered viewport, but not in rendered preview.
What am I missing?
Is there a bug? Where? GPU?

Viewport screendump:

Render preview screendump:

Thanks in advance for any suggestions

-L

[nathanletwory (Nathan 'jesterKing' Letwory)]

Here a couple of posts to look at

Rendering in V7

I’d use a PBR material with normal map on the ground plane. I gave the material that I created the name Deep Water on GP.rmtl (514.1 KB). Play with the size of the texture mapping on the ground plane to get the waves the size you want them to be. [Deep Water on GP with 95% opacity] Play with the material opacity to change the color action [Deep Water on GP with 2% opacity] I added further an environment using the tonemapped 8k jpeg for lakeside on HDRI haven for custom reflection and custo…

Underwater Render

I don’t know about V-Ray, but maybe something like this? View from inside a quick piped helix curve set to a glass material, and a water surface with displacement applied for waves. I didn’t do a complex set of surfaces for the helix pipe to go through, but the basin is a solid with a very light-blue-green color. Camera looks up. [image] To set up your perspective view such that it is inside your tube use _Camera with Perspective view active, and select to show it. Then in other views you ca…

Renders some glass weird

I am showing here backfaces in pink: [image] Glass doesn’t render properly when doing single surface, and especially not when seen from the backface. Select the surfaces you can see the backfaces from and use _Flip. After that it is a good idea to also select all the surfaces with your Glass materials and add the tiniest biit of thickness to them. 0.01 should do to keep them very thin - the glass will render correctly. Below I just used the material editor to select all objects with the gla…

The first and third linked posts have water materials available in them for your benefit.

addendum: what you see in the Rendered viewport is just the bump map. Displacement doesn’t work too well on the ground plane as displacement maps needs a lot of dense geometry to be useful. Anyway, the above linked posts should help you get good results using normal maps.