From sky-writing it's a short step to contrails. Here's a screenshot of a first stab at contrails. Of course it will look better with something besides my white boxes!
http://home.comcast.net/~davidculp2/contrail.jpg This contrail contains a bunch of submodels that have a life-span of four seconds, so the trail terminates itself at a "distance" of four seconds behind the airplane. The submodels, which use the puff.ac visual model, are released at 0.01 second intervals, however the real interval is limited to some larger amount due to frame rate. The contrail visual model will have to be tubular to avoid gaps between submodels. This isn't in the code base yet, but I'll send on later today. Next step is to define a <contrail-level> item for the environment system (with a default value of 30000 ?) to set the contrail level, and then have the environment system set a boolean property, like /environment/contrails, to true when the user is above the contrail level. The submodel can then use /environment/contrails as a trigger. Dave -- **************************** David Culp [EMAIL PROTECTED] **************************** _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
