Hello Garry,
Garry Hoberg wrote:
> I'm using the SimpleSceneManager with a walkNavigator. (I disabled the
> collision detection by setting a node with a group core and no children as
> world and ground.) The scene consists of the root node, two transform nodes
> (both translations) and one object from a VRML file in this order from top to
> bottom. So far everything's displayed fine. But when I move the object by
> changing the matrices of the transform node cores (on the push of a button)
> the object is only visible as long as I'm facing roughly the direction I was
> facing when the programme started (-z). When I move to a different position
> from which I have to turn about 50 degrees (which seems to coincide with the
> opening angle of the camera) to view the object I can make the object appear
> and disappear by turning a little (the object would still be about in the
> centre of the window). When viewing from a position that would require to
> turn more than 50 degrees to face the object it's invisible.
> I checked this with some more objects in the scene and found that this is not
> a near/far clipping plane issue.
> Has anyone else encountered this? Can anyone explain this?
could be a problem with the bounding volumes, i.e. the volumes are too
small and the frustum culler removes the objects because it thinks they
are not in view.
Does calling mgr->getAction()->setFrustumCulling(false) change anything?
You can see the bounding volumes with
mgr->getAction()->setVolumeDrawing(true), do these look correct ?
Hope it helps,
Carsten
-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
Opensg-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/opensg-users
