Hi Gianni, Vincent,
isn't that problem the same as having a cross axes fixed in a corner of
the viewer and rotates accordingly to the scene? If so, after looking at
the osgautotransform example I don't think it would solve the problem,
but I hope someone can help us :)
Please search the archives, there was a discussion about this a few
months ago and from reading that discussion I was able to code up a
class that can do both (a compass and axes) depending on a setting
passed to the constructor. In one app (in a marine scenario) we display
a compass, and in another (kind of like a modeling app) we display axes.
In my case, I created an ortho camera that I put in the scene graph, and
that has a cull callback that will change its view matrix based on the
main camera's view direction (it's a slightly different calculation for
compass mode than for axes mode - I'll leave the exact calculations as
an exercise for the reader :-) ). Then the model you want (compass or
axes) is under that camera. It's as simple as that.
Hope this helps,
J-S
--
______________________________________________________
Jean-Sebastien Guay jean-sebastien.g...@cm-labs.com
http://www.cm-labs.com/
http://whitestar02.webhop.org/
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