[Opensim-users] Heightmap Grayscale % = ??? Meters?

[Len W. Brown]

Hi everyone! Google and OpenSimulator.org haven't provided me a
really clear direct answer to this question (yet)... 

I am attempting
to create a very crisp heightmap for a tech-based region I'm planning
where certain areas must be at precise elevations. I'm trying to choose
precise grayscale colors that result in precise elevations. 

I'm having
a hard time determining what settings to choose. 

I'm using GiMP and
have made multiple attempts this morning creating an image 256X256,
grayscale, set to total black and saved as a PNG with zero compression.
But when loading in the console ("terrain load 0.png" for example) while
it loads "successfully" what I wind up with is a flat terrain that is
approximately 12.25 meters in elevation. Not the 0 meters I expected.


Doing the same as above, but setting the grayscale to 20 on a new
image, I expected it to load at sealevel. Instead it loaded at about
25.75 meters elevation. 

I would sincerely appreciate a clear options
setting for elevation if this is actually supported with precision in
OpenSim 0.7.3.1... Thanks! 

-- 

- Len W. Brown
 len at lenwbrown.com
 
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