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

[R.Gunther]

Not sure if you found this one.  But here you can find lots of info 
about Secondlife heightmaps.
http://wiki.secondlife.com/wiki/Tips_for_Creating_Heightfields_and_Details_on_Terrain_RAW_Files

On 2012-05-06 15:04, Len W. Brown wrote:
>
> 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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