marhkimov,
When I was making the night environment I try this "white squiggly line" on the nigth sea texture and the result is like you said: the moon reflection appears - but - the "white squiggly line" was always visible even without moon. You obviously notice that for the day light SH3 have 4 or 5 textures, this way the sun reflection only appears when it's necessary...
And I tried the opposite too: I change the day light texture with that "white squiggly line" and use another without, the result is no sun reflection. I thought that this is why Sergei don't achieve to enable the moon reflection: the secret is on the sea texture, but SH3 only manage one texture for the night sea. I guess that we could never had a correct moon reflection...
Rubini.