* Jon S. Berndt -- Monday 19 December 2005 05:04:
> Would it be possible to change the visual appearance of wing flex during
> flight?
As Curt and Joacim have mentioned already, there are ways to do it:
(A) ornithopter method: several instances of the wing. This has the
disadvantage that you'd need a lot of them for smooth transitions.
No problem for the fast moving ornithopter, but one would probably
need a *lot* of such instances for a glider wing.
(B) bo105 method: wing/blade made of smaller parts that are each
animated with smaller rotations. Smooth movements, but the hinges
between them can look quite ugly. Not a big problem for the bo105,
because the blade is dull and black. Wouldn't work well for a shiny
white wing.
(C) tween method: this isn't implemented in fgfs yet, but plib offers
an ssgTweenController ("A morph controller") class. Maybe "we" should
make it available in fgfs for wings/blades. It interpolates between
two or more objects with the same number of vertices&faces, so one
would only need two instances of the wing and could smoothly
interpolate. Would probably work better than either (A) or (B).
(see http://plib.sourceforge.net/ssg/branches.html and the
test application: $PLIB/examples/src/ssg/tween_test/tween_test.cxx)
m.
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