@Jerry Tremble, Emrys & synchromesh - thanks for the comments, appreciate them
@Fendrik - thanks ... scripting's the easy part for me, texturing is another story
@Sativa Savant Thank you for the encouragement. You can find some cool modern submarine at synchromesh's site - http://www.gamegurufiles.co.uk/models.html. Don't think they are enterable though from what I remember. I was trying to go for that type of sub exploration type theme, but can't really do it with GG yet given only 500 units of depth under sea-level.
@Slaur3n - thank you!
@science boy - Heh, you don't want much
. I know what you mean ... I wish you hadn't said water world though ... got me thinking of something else now that could become a major distraction
. I'm giving up on submarine activity for a while but hope to come back to it.
@ Lee - thanks for the comments and encouragement. Yes being able to raise the water would achieve the same thing, that would be great. I tried to simulate this with a quad across the entire map, but couldn't get the water shader to hook into it properly (I'm clearly missing something on how the engine talks to that). I also replaced (hid) the GG terrain with an underwater model terrain across the level ... this works reasonably well (shown in the video), but of course the sub can only operate within 500 units even though the depth looks much much deeper. So have parked this particular level for now.
Cheers.