I don't know why this is causing any issue I must be doing something wrong but I have no idea what because this is first time I am using Karma for rendering flip. I made two Houdini ocean procedural nodes one for the sim one for the ocean, merged it. Texture is applied on the volume or the grid well but for it's not getting applied on the sim part as you can see in the image. The white part is the sim part and the textured part is of extended grid. Is this a UV issue?

I have tried rendering it with Mantra although output is good but even a low res render is taking around 12-20 mins per frame to render. So Please I need your help with this.

I think you have to apply another mtlx to this part because this is the default mtl with the procedural node.. or maybe you can assign the same mtlx ocean surface to the sim part.