Hi Mca Mca?? If you are human I'd guess you have a name that other humans can use to communicate with you... so it'd be nice is you could sign with you name.
As for particle systems, ones that have dynamically moving emitters need to have the emitter under the transform that moves the model and the particle system that renders it under the root node in world coordinates. The osgparticleeffects example illustrates this in action so have a look at this example so see how it manages it. Robert. On 30 June 2012 10:43, Mca Mca <[email protected]> wrote: > I USE OSG IN QT (whith visual c++ 2010), BUT THE FIRE AND SMOKE (PARTICLE) > don't move with the model , i use this code to create these effects: > //to get the intersection with the terrin > osg::Vec3 posCallback::getCurrentPosition() > { > osg::Vec3d pos(0,0,0); > > mapNode->getTerrain()->getWorldCoordsUnderMouse(view,Xpos,Ypos,pos);//pos is > vector > return pos; > } > > //create the effect > osg::Node* createExplode(osg::Vec3 a) > { > osg::Group* explode = new osg::Group() ; > osg::Vec3 wind(1.0f,0.0f,0.0f); > osg::Vec3 position=a; > > osgParticle::ExplosionEffect* explosion = new > osgParticle::ExplosionEffect(position, 14.0f,11); > osgParticle::ExplosionDebrisEffect* explosionDebri = new > osgParticle::ExplosionDebrisEffect(position, 4.0f,11); > osgParticle::SmokeEffect* smoke = new osgParticle::SmokeEffect(position, > 100000.0f,7); > osgParticle::FireEffect* fire = new osgParticle::FireEffect(position, > 1000.0f,3); > > fire->setEmitterDuration(smoke->getEmitterDuration()); > fire->setParticleDuration(smoke->getParticleDuration()); > > explosion->setWind(wind); > explosionDebri->setWind(wind); > smoke->setWind(wind); > //fire->setWind(wind); > > explode->addChild(explosion); > explode->addChild(explosionDebri); > explode->addChild(smoke); > explode->addChild(fire); > > return explode ; > } > //add the model and the smoke+fire to the position transform to move theme > together: > post=new osg::PositionAttitudeTransform(); > root->addChild(post); > post->addChild( model3D ); //osg::Node at 0,0,0 > post->addChild(createExplode(osg::Vec3(0,0,0) );//at the center 0,0,0 > post->setPosition(getCurrentPosition()); > //I add some animation (of position) to the post > > //but when the model change its position the fire and smoke don't change > thiere position, they still in the center > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=48613#48613 > > > > > > _______________________________________________ > 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
