[Opensim-dev] Negative z values

[Ai Austin]

At 01:30 25/04/2014, opensim-dev-request at opensimulator.org wrote:
>Hi folks.  Historically, whether by accident or design, 
>OpenSimulator has allowed negative Z values for terrain, objects
>and avatars (e.g. <130, 50, -45>.  I have seen people use this 
>facility to build fully underwater or partially
>underwater structures (e.g. oil rigs, sunken ships, etc.) which are 
>conceptually far below the water line without having
>to set that water line at a level that may be way above that of 
>surrounding regions.
>... Thoughts?


I did not know this was possible..  but I think it would be a very 
useful thing to have since I have some entirely underwater based 
regions (e.g. see Marineville in OSGrid) where I had to space te 
region far away from other regions due to the different water 
heights, and regions where I could use more underwater areas (such as 
Vue-Rig in OSGrid

Does anyone have a terrain height image that sets the sea bed lower 
than 0m and has a water height of the default 20m to act as the basis 
for a test?

And if anyone has a nice simple test OAR where water level is 20m and 
there are objects and terrain below 0m it would be useful to act as 
the basis for experimentation.