i need to integrate mesh to ocean surface extended how can apply ocean surface on mesh and merge in ocean in vray any help

Hello
you can project vector with ray sop and for each primitive
simple way to do is export ocean surface to displacement
refer to oceanevaluate go to Export to Texture and change settings you want !
Also if you want rendering cusp in channel parameter choosing Displacement in RGB, Cuspin Alpha
Make sure Output be set to .exr format
and finally use exported displacement map in VRay Engine

Other ways are using VOP Sop for exporting Directly Mesh
Also you can export surface from oceansurface node woth .bgeo.ac format and
Use it inside vop with oceansample layer

Check my Screen Shots for Exported Displamenet :