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c162577340
are now working. A runway light is defined by a point and a direction. The point and direction are combined with the local up vector to create a small triangle orthogonal to the direction. The two ficticous corners of the triangle are given an alpha value of zero, the orignal corner is given an alpha of one. The triangle is drawn in glPolygonMode(GL_FRONT, GL_POINT) mode which means only the corner points are drawn, and since two have alpha=0 only the original point is drawn. This is a long way to go to draw a point, but it ensures that the point is only visible within 90 degrees of the light direction, behind the light it is not visible. This is still a long way to get to drawing a point, but we use an environement map, with the direction vector as the normal to mimic a light that is brightest when viewed head on and dimmest when viewed perpendicularly or disappears when viewed from behind. - warning, there is a bug in how the current runway light direction vector is calculated which will adversely effect runway lighting. The airports should be regenerated in order to fix this problem. |
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| docs-mini | ||
| man | ||
| package/mandrake | ||
| scripts | ||
| src | ||
| tests | ||
| .cvsignore | ||
| acinclude.m4 | ||
| am2dsp.cfg | ||
| AUTHORS | ||
| autogen.sh | ||
| ChangeLog | ||
| configure.ac | ||
| FlightGear.dsp | ||
| FlightGear.dsw | ||
| Makefile.am | ||
| NEWS | ||
| README | ||
| Thanks | ||
Welcome to the FlightGear Flight Simulator project. =================================================== The primary web page for this project is: http://www.flightgear.org For basic installation instructions see the "INSTALL" file. Before you can run FlightGear you will also need to download and install the "base" package which is a collection of textures, sounds, sample scenery, and other data files need by the sim. For additional install help for specific platforms please browse the "docs-mini/" subdirectory. More complete documentation is available from our web page as a separate distribution. Please take a look at the "Thanks" file for a list of people who have contributed to this project. If you have contributed something but don't find your name in this file. Please send a polite reminder to curt@flightgear.org For a summary of changes/additions by version see the "NEWS" file. This project is GPL'd. For complete details on our licensing please see the "COPYING" file. For information on available mailing lists, mailing list archives, and other available source code and documenation, please visit our web site. FlightGear is a product of the collaboration of large international group of volunteers. FlightGear is a work in progress. FlightGear comes with no warrantee. We hope you enjoy FlightGear and/or find it of some value!