I have set up a earth globe view where I have a trajectory line that "trails"
out of the end of a 3d aircraft model.
I have two slightly modified versions of a nodeTracker and Terrain manipulator
that I am using. (Both have
slightly modified up vector calculations). My problem is that depending on my
viewing angle the trajectory
line will disappear. I have set the culling mode on the viewer's camera to
NO_CULLING and have tried to
set all nodes to setCullingActive(false). The line itself is a primitive class
that I append points to as they
arrive (I get my data elsewhere).The model is placed at the same location as
the last point appended
to the line. The behavior seems as follows. If I view the model (which is the
node
currently attached to my nodeTracker) from ANYWHERE behind the model which is
the side the trajectory
line emminates from (back to the original point), the line disappears. The
model never disappears but the entire
line disappears. It is not clipping the line off at a near clip plane because
the entire line disappears, and I am far enough
away (and off to the side) that at least some if not all the line should be in
view.
_______________________________________________
osg-users mailing list
[email protected]
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org