osg开启透明度

1. osg::StateSet* stateset = _geometryFeild->getOrCreateStateSet();  //Alpha混合开启  

   
   

2. stateset->setMode(GL_BLEND,osg::StateAttribute::ON);  //取消深度测试   

3. stateset->setMode( GL_DEPTH_TEST, osg::StateAttribute::OFF  ); 

5.  stateset->setMode( GL_LIGHTING, osg::StateAttribute::OFF | osg::StateAttribute::PROTECTED ); 

6.   stateset->setRenderBinDetails(11, "RenderBin");//设置渲染优先级------级别理论上来讲 比 背景的node 后就行，没设置过的是-1.