View source for Using L3DT

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== About L3DT ==
L3DT can be used to generate terrains. The program runs natively under Windows, and can be run under Linux using the Wine compatibility layer(Only the [http://www.bundysoft.com/L3DT/downloads/standard.php] development version!).
This is now L3DT Standard Edition - v13.01 dev build 0

== Quick intro on creating a terrain with L3DT ==

To create a terrain for a single region:

1. Create a NEW MAP by clicking on that icon in the title bar.<br />
2. Highlight Design/Inflate, and click Next.<br />
3. Make the size X=4, y=4. This will give you a 256x256 terrain, the same size as a region. Click Next.<br />
4. Play with the sliders in the parameters window. You can just leave the defaults to start with. Click Next.<br />
5. Check Design Map, and click OK.<br />
6. Now click the CALC icon in the menu bar, then click OK.<br />
7. You now have your terrain. If you don't like it, start over and play with the settings.<br />
8. To save it: File=>Export=>Export Map.<br />
9. Highlight Heightfield, and then click OK.<br />
10. Choose File Format RAW, then click the Options button.<br />
11. Double click "Mode", and select "float (meters)", then click OK, and OK again.<br />
12. Name the file whatever you want, and click OK to save it.<br />
*** UPDATE New Terrain system requires L3DT export files to have a file extension of .r32 *IMPORTANT*
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*** 2008.11.05 Update: With L3DT Standard Version 2.6, at the "Heightfield Size (2/5)" screen (step 3 above), you need to enter 256x256 and set the Horiz. scale to 1. The next screen "Design map size (3/5)" take the defaults. Now you are at step 4, above.
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*** 2008.11.05 Update: when exporting the raw file (step 11 above), chose 32-bit floating-point (meters)
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To load the terrain into opensim:<br />
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Assume your file is called "terrain.r32".At the region console, type:<br />
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terrain load terrain.r32<br />
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You now have your new terrain! You can at this point use the terrain add, terrain scale, or terrain multiply to rescale it to your liking.

=== Version 2.7 ===
Using version 2.7, (development as at 2009-02-14) the export process is simpler, in that you only need to choose a file type of "R32" and enter a filename.

== Using your new terrain files ==

You can now also create terrains in some multiple of 256x256 to load to multiple regions at one time with the <code>terrain load-tile</code> command.

For example, if you create a 768x768 terrain.r32 file, you can load it to a set of 9 regions centred on 1000,1000 as follows:

 terrain load-tile terrain.r32 3 3 999 999

The terrain generated by L3DT seems to use 0 as sea level (perhaps not surprising :-) but OpenSimulator uses 20 for the sea level, so after you have loaded your terrain you will probably want to adjust it's elevation:

 terrain elevate 20

See: http://opensimulator.wordpress.com/2008/03/31/new-terrain-commands/ for some more information.

[[Category:Users]]
[[Category:Getting Started]]