2008/12/3 Tomlinson, Gordon <[EMAIL PROTECTED]> > To NOT render a node and all its children simply set is Node mask to 0x0 > to stop it being drawn, and set it 0xFFFFFFF and any value that results > in true when locial AND'ed cameras mask > > As to alsway being drawn > > 1) Turn OSG culling of on the node > > 2) Place the node and its children in a render bin with a high number > like 100 or higher than any other you may be using. > This will make sure it is rendered last > node->setRenderBinDetails( 100,"LastRenderBin"); > > 3) If you want all of the geometry to be drawn then turn OFF the depth > test of for node and its children as shown below >
Hmm, I use this code : *osg::ref_ptr<osg::StateSet> state = node->getOrCreateStateSet(); > node->setCullingActive(false); > state->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF); > state->setRenderBinDetails(1000, "RenderBin");* > and nothing happen... It is not my lucky day today... Thanks. Regards, Vincent. > Gordon > > __________________________________________________________ > Gordon Tomlinson > > Product Manager 3D > Email : gtomlinson @ overwatch.textron.com > __________________________________________________________ > (C): (+1) 571-265-2612 > (W): (+1) 703-437-7651 > > "Self defence is not a function of learning tricks > but is a function of how quickly and intensely one > can arouse one's instinct for survival" > - Master Tambo Tetsura > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Ulrich > Hertlein > Sent: Wednesday, December 03, 2008 12:53 AM > To: OpenSceneGraph Users > Subject: Re: [osg-users] Depth/Cull question > > Hi Vincent, > > Quoting Vincent Bourdier <[EMAIL PROTECTED]>: > > I just need to set a node to be always rendered (or not). > > It needs to not depend on the Zbuffer/culling. > >... > > *osg::ref_ptr<osg::StateSet> state = node->getOrCreateStateSet();* > > > * state->setMode(GL_CULL_FACE, osg::StateAttribute::ON);* > > > * osg::ref_ptr<osg::Depth> depth;* > > > * if(set){* > > > * depth = new osg::Depth(osg::Depth::ALWAYS, 0.0, 1.0);* > > > * state->setMode(GL_CULL_FACE, > osg::StateAttribute::OFF);* > > > * node->setCullingActive(false);* > > > * }else{* > > > * depth = new osg::Depth(osg::Depth::LEQUAL, 0.0, 1.0);* > > > * state->setMode(GL_CULL_FACE, osg::StateAttribute::ON);* > > > * node->setCullingActive(true);* > > > * }* > > > * * > > > * state->setAttributeAndModes(depth.get(), > > > osg::StateAttribute::ON);* > > Seems to me you're actually throwing different concepts into one bag: > - Zbuffer/depth test > - GL face culling > - OSG node culling > > If I understand you correctly then you want to make sure a node is > always drawn irrespective of any objects that might be in front of it. > Simply turn of the depth test: > state->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF) > > That might expose issues with the order in which objects are drawn - the > solution to that is RenderBins. > > When you say "always rendered *(or not)*" (my emphasis) do you want to > turn it off completely? > > Hope this helps, > Cheers, > /ulrich > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or > g<http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org> > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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