My final heightmap expresses the water at the borders of the map as pure white, see image:
I’m not using a drainage mask in my Flow Restructure device, and it is set to ‘Map Borders and Drainage Mask’. The map edges where this is occurring are more or less at zero / black. So my terrain sits on a flat base, and I guess that’s why this is happening.
Does anyone know how to avoid these white patches?