Hi For such complex transparent models you need some proper order-independent transparency algorithm
Cheers. 09.10.2012, 23:22, "Tina Guo" <[email protected]>: > Hi, > > Thanks for reply. Now the code is like > > virtual void define_passes() > { > osg::ref_ptr<osg::StateSet> ss = new osg::StateSet; > ss->setAttributeAndModes( new osg::ColorMask(true, true, true, true) > ); > osg::Depth* depth = new osg::Depth; > depth->setWriteMask( false ); > ss->setAttributeAndModes( depth, osg::StateAttribute::ON ); > addPass( ss.get() ); > > ss = new osg::StateSet; > ss->setAttributeAndModes( new osg::ColorMask(false, false, > false, false) ); > depth->setWriteMask( true ); > ss->setAttributeAndModes( depth, osg::StateAttribute::ON ); > addPass( ss.get() ); > } > > However, it could not handle sel-intersection(the picture in the attached doc) > > Using: > transparency->setRenderingHint(osg::StateSet::TRANSPARENT_BIN); > transparency->setAttributeAndModes(new osg::BlendFunc(GL_SRC_ALPHA > ,GL_ONE_MINUS_SRC_ALPHA), osg::StateAttribute:ShockedN); > osg::Depth* depth = new osg::Depth; > depth->setWriteMask( false ); > transparency->setAttributeAndModes( depth, osg::StateAttribute::ON ); > _geom_solid->setStateSet(transparency); > > instead of > > transparency->setRenderingHint(osg::StateSet::TRANSPARENT_BIN); > transparency->setAttributeAndModes(new osg::BlendFunc(GL_SRC_ALPHA > ,GL_ONE_MINUS_SRC_ALPHA), osg::StateAttribute:ShockedN); > _geom_solid->setStateSet(transparency); > > self-intersection is correct. However, some transparent parts will disappear, > like the wheels of the car in the picture in the doc, the color seems to be > blended after the inner parts. > > ... > > Thank you! > > Cheers, > Tina[/img] > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=50533#50533 > > Attachments: > http://forum.openscenegraph.org//files/test_152.pdf > > _______________________________________________ > 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
