Node:New Graphics Installation, Next:Use of New Graphics, Up:New Graphics
Here's the executive summary:
newgrf in the TTD directory
.zip format, unzip them. Make sure the .grf files
go into the newgrf folder
.grf files to either newgrf.cfg (DOS) or
newgrfw.cfg (Windows) in the TTD folder. Create that file if it doesn't exist.
Here is an example of a newgrfw.cfg file, in this case for the Windows version of TTD.
For the DOS version, simply remove the "W" or "w" at the end of each name.
newgrf/newshipsw.grf newgrf/cargosetw.grf newgrf/dbsetw.grf newgrf/tempsetw.grf newgrf/signalsw.grf newgrf/elrailsw.grf newgrf/arcticsetw.grf newgrf/trkfoundw.grf
You can temporarily disable a graphics file by putting a hash mark, "#" in front of it in the configuration file. Also, some graphics files allow you to modify some of their options by putting numbers behind the graphics file. For more information, refer to the readme file that should have come with the specific graphics file.
For example, the DB set normally replaces all railway crossings with versions that have
gates instead of lights. If you don't want that, you can use the line
newgrf/dbsetw.grf 2
For other possibilities, refer to the readme files of each graphics file.