Irrlicht Engine

I've a swimmingpool that is'nt rectangular.
I want to create a water surface with the texture of the water but it hasn't hills: how can I animate it as water?
I've searched for manipulating mesh but there'isnt' anything that can create hills on the mesh.

createWaterSurfaceSceneNode i think or addHillPlaneMesh

Hi GfxSyler!
Thank you for the suggest.
I've tried createaddwatersurfacescenenode and it' works.
I've lost a bit of time triyng the perfect setting for waves.
With big waves it's seems that there's an earthquake!

Now trying to get the best aspect for water.
Thank you a lot