光照设置

osg::ref_ptr<osg::Light> light = new osg::Light;osg::Vec4 vec1(255 / 255.0f, 248 / 255.0f, 220 / 255.0f, 1.0f);osg::Vec4 vec2(156 / 255.0f, 156 / 255.0f, 156 / 255.0f, 1.0f);light->setDiffuse(vec2);light->setAmbient(vec1);light->setPosition(osg::Vec4(118.7487498, 31.969264, 2000, 1.0f));m_pEarthViewer->setLight(light);m_pEarthViewer->setLightingMode(osg::View::LightingMode::HEADLIGHT);