I suggest you to use just one primitive for all the point cloud, not a primitive for each point.
You can use primitive type DrawArrays, try this code: lasGeometry->addPrimitiveSet( new osg::DrawArrays(osg::PrimitiveSet::POINTS, 0, no_points) ); instead of the for loop you are using. It should consume much less memory and speed it up considerably. Cheers! Javier Taibo. On Thu, Oct 28, 2010 at 6:41 PM, Vipin Panwar <[email protected]> wrote: > Hi, > > I am reading the points from LAS file and rendering the data. The data is > not dynamically updated. I am pasting the subset fo code. So that you can > find out how I am rendering the points. > > for(unsigned long k = 1; k < no_points; k ++) > { > > > lasVertices->push_back( osg::Vec3( x_coord, y_coord, z_coord)); > } > free(buff); > } > > colors->push_back(osg::Vec4(1.0f, 0.0f, 0.0f, 1.0f) ); > lasGeometry->setVertexArray( lasVertices); > lasGeometry->setColorArray(colors); > lasGeometry->setColorBinding(osg::Geometry::BIND_OVERALL); > > for(prim = 0 ; prim < no_points-1; prim = prim + 1) > { > lasPrim = new > osg::DrawElementsUInt(osg::PrimitiveSet::POINTS); > lasPrim -> push_back(prim); > lasGeometry->addPrimitiveSet(lasPrim); > } > > //lasGeometry->addPrimitiveSet(lasPrim); > osg::ref_ptr<osg::StateSet> state = root->getOrCreateStateSet(); > state->setMode(GL_LIGHTING, osg::StateAttribute::OFF); > > //osg::PolygonMode* pm = new > osg::PolygonMode(osg::PolygonMode::FRONT_AND_BACK, osg::PolygonMode::LINE ); > // Force wireframe rendering. > //state->setAttributeAndModes( pm, osg::StateAttribute::ON | > osg::StateAttribute::OVERRIDE ); > > viewer.setSceneData( root ); > viewer.addEventHandler( new PickHandler ); > viewer.addEventHandler(new osgViewer::StatsHandler); > viewer.addEventHandler(new osgViewer::WindowSizeHandler); > viewer.run(); > viewer.realize(); > > while( !viewer.done() ) > { > viewer.frame(); > } > > > Thank you! > > Cheers, > Vipin > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=33194#33194 > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > -- Javier Taibo
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