--- "Curtis L. Olson" <[EMAIL PROTECTED]> wrote: > David Megginson writes: > > Interesting -- I won't promise to integrate this > into the 3D models > > this week, but it should show up eventually. > > > > How far should this go? For variable-pitch props, > we could something > > like > > > > /engines/engine[n]/prop-pitch-norm > > > > and you could see where the governor is keeping > the blades and whether > > they're feathered. That wouldn't be hard to do > from JSBSim (which > > actually knows the pitch angle), but it might be > trickier from YASim. > > > > I'm worried about how far this will all lead, > though. > > David, > > I think the gear compression is actually an > important one because it > should prevent the wheels from going partially > underground, or > floating above the surface as the plane taxis, > brakes, turns, etc. > These are quite obvious visual anamolies. If you > look at it from the > perspective of 'depth cues' and trying to make the > plane appear as if > it is on the runway, having the gear float or go > under ground gives > the brain conflicting information about where the > aircraft actually is > relative to the ground. In the absence of other > natural depth cues > (such as shadows) the brain is likely to make the > wrong conclusion. > If we do try to add shadows, it will be important > for the gear to be > rooted on the ground, otherwise the shadows will not > match the > aircraft.
I agree but keep in mind this will only get us so far as long as the gear models don't have some idea of the terrain height below each wheel. On a slope, the uphill wheel(s) will still appear to be underground and the downhill above it. Was anyone able to devise a way to get this information in a non-frame-rate killing way? IIRC, that was the big issue. > > Curt. > -- > Curtis Olson IVLab / HumanFIRST Program > FlightGear Project > Twin Cities [EMAIL PROTECTED] > [EMAIL PROTECTED] > Minnesota http://www.menet.umn.edu/~curt > http://www.flightgear.org > > _______________________________________________ > Flightgear-devel mailing list > [EMAIL PROTECTED] > http://mail.flightgear.org/mailman/listinfo/flightgear-devel > > __________________________________________________ Do You Yahoo!? Yahoo! Sports - sign up for Fantasy Baseball http://sports.yahoo.com _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
