Got alpha to work. So sea is actually just transparent blue plane, cutting through terrain at right height. A lot of temptation to introduce tides, floods, global warming changes…must resist…keep focus… year is around 1600 and it’s about Pirates! Terrain is all dirt. As it turns out, green does note blend well apparently, I will add trees as objects later on. Right now time to enjoy the view of dreamy island of Crete on my Ipad!