I dont understand how really to configure a plane to make Contrails?I cant find any good add ons for Flight gear besides the so does anyone have any good links?The B777 that I downloaded doesnt seem to be working the error message says the WGL_ARB_Extension String is not supported?I also downloaded some liverys for the 737 and I dont know how to installl it into the plane?Any help would be obliged greatly.

I can help with contrails. The contrails are submodels, and are defined in a submodels.xml file. They are usually set to be triggered by the property called "contrail-altitude". The contrail altitude is defined in preferences.xml, and you can set it to anything you like. I like to set it at a low altitude for testing purposes when making new contrails.BTW, the path to the submodels file must be specified in your *-set.xml file, and the AI system must be turned on (since submodels are just AI ballistic objects).

>The B777 that I downloaded doesnt seem to be working the error>message says the WGL_ARB_Extension String is not supported?Are you sure the same error doesn't occur with other aircrafts as well, because it sounds like FlightGear doesn't support your graphic card.

>>The B777 that I downloaded doesnt seem to be working the>error>>message says the WGL_ARB_Extension String is not supported?>>Are you sure the same error doesn't occur with other aircrafts>as well, because it sounds like FlightGear doesn't support>your graphic card. Yeah but it overides the others.