Norman Vine wrote: > For example the a4 behaves differently then the c172 in this > respect. Discover what is different and the lighting problem should > be 'illuminated'.
Curtis L. Olson wrote: > People who understand the opengl lighting model better than I do > might notice that I haven't mentioned the specular lighting > compenent, which opengl supports as a way to emulate 'reflective' > surfaces. If we are seeing some strange lighting effects perhaps > the models have some kind of specular component that isn't getting > turned off properly at night? Good catch, both of you. All of the materials in the a4-blue.ac file have a 50% specular coefficient, the c172 file has 0. While some specular probably isn't wrong for the A-4 (the Blue Angel's used glossy paint, of course), 50% is certainly way to high. It's also used for stuff like the cockpit panel, which is clearly not specular. I think perhaps the original author misunderstood what specular means -- even the lights (which are, by definition, 100% emissive) are listed at 100% specular. I changed all the specular components to zero, and things look much saner in my copy. Andy -- Andrew J. Ross NextBus Information Systems Senior Software Engineer Emeryville, CA [EMAIL PROTECTED] http://www.nextbus.com "Men go crazy in conflagrations. They only get better one by one." - Sting (misquoted) _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
