[asheshouse]

one question m8, when you look at those small elevated islands from sea-level .... are they look ok? No transparency occur ?

thanks
Z

Looks ok to me.
I have found that map_h creates a transparency effect.
This has a temporary map_h with all land set to RGB=4
Skunkmeister is hopefully going to produce a refined map_h from SRTM data.
I don't know what effect map_R has. On the original Singapore map this would have been a sea area.