Terrain tiles water mask extention

I have the high inset of costline that I want to use as terrain. How do I tell ceisum ion that which area is land and which area is water so that mesh that I download has watermask extention so that I can apply material and create water waves effect in unreal engine.

Thanks

Hi,

You can set options.waterMask :true when creating assets via the API. This will treat elevation values at sea level as water.

At this time there is no ability to set the value in the Cesium ion UI.

Please let us know if this works for you.