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(Explain how alpha channel is used to alter shininess (the 'spec' part of bumpspec ;)) |
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FlightGear 2.0.0 introduces Effects, a powerful way to use Shaders within FG without having to write C code. As of March 2010, FlightGear | FlightGear 2.0.0 introduces Effects, a powerful way to use Shaders within FG without having to write C code. As of March 2010, FlightGear Git has a Normal Map effect (Effects/bumpspec.eff), which provides both bump mapping and specular mapping. This Howto provides a tutorial on using this Effect for aircraft. Similar techniques can be used to use other Effects on aircraft. | ||
If you don't know how a Normal Map works, have a look [http://en.wikipedia.org/wiki/Normal_mapping here]. | If you don't know how a Normal Map works, have a look [http://en.wikipedia.org/wiki/Normal_mapping here]. | ||
The latest documentation on the FlightGear Effects system is to be found in [http:// | The latest documentation on the FlightGear Effects system is to be found in [http://gitorious.org/fg/fgdata/blobs/master/Docs/README.effects $FG_ROOT/Docs/README.effects] | ||
==Creating the Normal Map== | ==Creating the Normal Map== |