相关资料：
实例代表：
.pro
1 QT += core gui widgets 2 QT += opengl 3 TARGET = TestOsgQt 4 TEMPLATE = app 5 DEFINES += QT_DEPRECATED_WARNINGS 6 CONFIG += c++11 7 8 SOURCES += \ 9 main.cpp 10 11 HEADERS += 12 13 OsgDir = D:\\Gitee\\osg365R 14 CONFIG(release, debug|release) { 15 LIBS += -L$${OsgDir}/lib/ -losgDB -losgViewer -lOpenThreads -losgAnimation -losg \ 16 -losgEarth -losgEarthAnnotation -losgEarthFeatures -losgEarthSymbology -losgEarthUtil \ 17 -losgQOpenGL -losgUtil -losgText -losgTerrain -losgSim \ 18 -losgShadow -losgParticle -losgManipulator -losgGA -losgFX \ 19 -losgWidget 20 } else { 21 LIBS += -L$${OsgDir}/debug/lib/ -losgDBd -losgViewerd -lOpenThreadsd -losgAnimationd -losgd \ 22 -losgEarthd -losgEarthAnnotationd -losgEarthFeaturesd -losgEarthSymbologyd -losgEarthUtild \ 23 -losgQOpenGLd -losgUtild -losgTextd -losgTerraind -losgSimd \ 24 -losgShadowd -losgParticled -losgManipulatord -losgGAd -losgFXd \ 25 } 26 27 LIBS += -lOpenGL32 28 LIBS += -lGlU32 29 30 INCLUDEPATH += $${OsgDir}/include 31 DEPENDPATH += $${OsgDir}/include
main.cpp
1 #include <QApplication> 2 3 #include <osg/Node> 4 #include <osg/Group> 5 #include <osg/Geode> 6 #include <osg/Geometry> 7 #include <osg/Texture2D> 8 #include <osg/StateSet> 9 #include <osg/PositionAttitudeTransform> 10 #include <osgViewer/Viewer> 11 #include <osgDB/ReadFile> 12 #include <osgParticle/PrecipitationEffect> 13 // 雨雪效果 14 #include <osg/MatrixTransform> 15 // 粒子效果 16 #include <osgParticle/PrecipitationEffect> 17 #include <osgParticle/Particle> 18 #include <osgParticle/LinearInterpolator> 19 #include <osgParticle/ParticleSystem> 20 #include <osgParticle/RandomRateCounter> 21 #include <osgParticle/PointPlacer> 22 #include <osgParticle/RadialShooter> 23 #include <osgParticle/ModularEmitter> 24 #include <osgParticle/ParticleSystemUpdater> 25 #include <osgParticle/ModularProgram> 26 #include <osgUtil/Optimizer> 27 #include <osgUtil/Simplifier> 28 #include <osgParticle/FireEffect> 29 // 雾 30 #include <osg/Fog> 31 #include <osgDB/ReadFile> 32 #include <osgViewer/Viewer> 33 #include <osg/StateSet> 34 #include <osg/StateAttribute> 35 #include <osgViewer/ViewerEventHandlers> 36 #include <osgWidget/ViewerEventHandlers> 37 // 38 #include <QDebug> 39 40 class MyDrawCallback : public osg::Drawable::DrawCallback 41 { 42 public: 43 void drawImplementation(osg::RenderInfo &renderInfo, const osg::Drawable *drawable) const 44 { 45 qDebug() <<"draw call back - pre drawImplementation"<<drawable ; 46 drawable->drawImplementation(renderInfo); 47 qDebug() <<"draw call back - post drawImplementation"<<drawable ; 48 49 static double dColor = 0;//颜色 50 glColor3f(dColor, 0, 0); 51 glBegin(GL_TRIANGLES);//在OSG中画一个opengl三角形 52 glVertex3f(0.0, 0.0, -2.0); 53 glVertex3f(0.2, 0.0, -2.0); 54 glVertex3f(0.0, 0.4, -2.0); 55 glEnd(); 56 dColor += 0.01;//颜色渐变 57 if (dColor > 1.0) 58 { 59 dColor = 0.0; 60 } 61 } 62 }; 63 64 int main(int argc, char *argv[]) 65 { 66 osgViewer::Viewer viewer; 67 osg::ref_ptr<osg::Group> root=new osg::Group(); 68 osg::ref_ptr<osg::Node> osgcool=osgDB::readNodeFile("D:\\Gitee\\data\\cow.osg"); 69 70 osg::Group* ttt=osgcool->asGroup(); 71 osg::Geometry* geom = ttt->getChild(0)->asGeode()->getChild(0)->asGeometry(); 72 geom->setUseDisplayList(false); 73 geom->setDrawCallback(new MyDrawCallback()); 74 75 osg::ref_ptr<osg::MatrixTransform> trans=new osg::MatrixTransform(); 76 // osg::Matrix::scale(0.5,0.5,0.5)表示缩放的比例，也就是原来物体的一般大小 77 // *osg::Matrix::translate(0,-10,0)表示平移正前 78 trans->setMatrix(osg::Matrix::scale(0.5,0.5,0.5)*osg::Matrix::translate(0,-10,0)); 79 trans->addChild(osgcool.get()); 80 81 root->addChild(osgcool.get()); 82 root->addChild(trans.get()); 83 84 viewer.setUpViewInWindow(50,50,500,400); 85 viewer.setSceneData(root.get()); 86 viewer.realize(); 87 viewer.run(); 88 }
