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GroundMaterial
GroundMaterial is an option for a Material that allows you to set the ground texture.
Code
To utilize GroundMaterial in your map, first it must be defined:
material name GroundMaterial texture <fileName or URL> end  | 
Valid parameters for groundmaterial are:
| Parameter | Description | 
| name | name GroundMaterial must be used as name for to work. | 
| texture | set the texture file, either a filename (without .png extension) or URL eg. http://server.name/path/to/file |