Hi Gianulca, If you want your subgaphs to respond to different traversals in different ways then it's best to use node->setNodeMask(mask) and nodevisitor->setTraversalMask(mask) in combination. In your case you could set your "invsible" subgraphs to 0x1, and pick these out with an intersect visitor a mask of 0xffffffff, and a cull mask of 0x2.
Robert. On Mon, Jul 7, 2008 at 1:22 PM, Gianluca Natale <[EMAIL PROTECTED]> wrote: > Hi Robert. > > What I mean is: > I have a scene made of 3 spheres, > each attached under a different switch node. > The first two spheres are visible (their switches > are turned on), while the third is not (so its > switch is turned off). > I would like to select also the third > sphere (imagine for example that I want > the third sphere to be visible only when the > mouse is over it), even when it is invisible. > > Thanks, > Gianluca > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Robert > Osfield > Sent: lunedì 7 luglio 2008 11.35 > To: OpenSceneGraph Users > Subject: Re: [osg-users] is there a way to select an invisible object? > > Hi Gianluca, > > What do you mean by "select" and object? > > What type of object? > > Robert. > > On Mon, Jul 7, 2008 at 10:24 AM, Gianluca Natale > <[EMAIL PROTECTED]> wrote: >> Hi All! >> >> I'm using OSG to implement my own scene graph >> to draw my scene on the screen. >> Sometimes I would need to select an object even if it >> is invisible (I mean that the switch node it is attached >> to is set to off). But this seems impossible to me, >> because I don't want to draw the object, so I have to >> disable that switch. >> On the other hand, if I disable the switch, how can I >> select it (with the standard OpenGL picking mechanism)? >> Do I have to duplicate the scene graph, one for >> selection and the other for drawing? >> >> Thank you in advance for your suggestions. >> Gianluca Natale >> >> >> >> _______________________________________________ >> osg-users mailing list >> [email protected] >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> >> > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.138 / Virus Database: 270.4.5/1536 - Release Date: 7/5/2008 > 10:15 AM > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
