Osg-Osg实例环境雪效果(Qt5.14.2+osgEarht3.6.5+win10)-No2-EnvironmentSnow

相关资料：

https://blog.csdn.net/wb175208/article/details/88376874   OSG粒子效果-雪

https://blog.csdn.net/chlk118/article/details/47009027?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-4.control&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-4.control

代码实例：

.pro

 1 QT       += core gui widgets
 2 TARGET = TestOsgQt
 3 TEMPLATE = app
 4 DEFINES += QT_DEPRECATED_WARNINGS
 5 CONFIG += c++11
 6 
 7 SOURCES += \
 8         main.cpp
 9 
10 HEADERS +=
11 
12 OsgDir = D:\\RuanJian\\osg365R
13 CONFIG(release, debug|release) {
14         LIBS += -L$${OsgDir}/lib/ -losgDB -losgViewer -lOpenThreads -losgAnimation -losg \
15                                   -losgEarth -losgEarthAnnotation -losgEarthFeatures -losgEarthSymbology -losgEarthUtil \
16                                   -losgQOpenGL -losgUtil -losgText -losgTerrain -losgSim \
17                                   -losgShadow -losgParticle -losgManipulator -losgGA -losgFX \
18                                   -losgWidget
19 } else {
20         LIBS += -L$${OsgDir}/debug/lib/ -losgDBd -losgViewerd -lOpenThreadsd -losgAnimationd -losgd \
21                                   -losgEarthd -losgEarthAnnotationd -losgEarthFeaturesd -losgEarthSymbologyd -losgEarthUtild \
22                                   -losgQOpenGLd -losgUtild -losgTextd -losgTerraind -losgSimd \
23                                   -losgShadowd -losgParticled -losgManipulatord -losgGAd -losgFXd \
24 }
25 
26 
27 INCLUDEPATH += $${OsgDir}/include
28 DEPENDPATH += $${OsgDir}/include
View Code

.main

 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 // 雾
29 #include <osg/Fog>
30 #include <osgDB/ReadFile>
31 #include <osgViewer/Viewer>
32 #include <osg/StateSet>
33 #include <osg/StateAttribute>
34 #include <osgViewer/ViewerEventHandlers>
35 #include <osgWidget/ViewerEventHandlers>
36 
37 int main(int argc, char *argv[])
38 {
39     osg::Group* root = new osg::Group();
40 
41     osg::Matrixd mat;
42     mat.makeTranslate(osg::Vec3d(0.0, 1.0, 0.0));
43 
44     osg::ref_ptr<osg::MatrixTransform> trans = new osg::MatrixTransform;
45     trans->setMatrix(mat * osg::Matrixd::scale(10, 10, 10));
46     // 雪花类
47     osg::ref_ptr<osgParticle::PrecipitationEffect> pe = new osgParticle::PrecipitationEffect;
48     // 设置雪花浓度
49     pe->snow(1);
50     int iLevel = 1;
51     pe->setParticleSize(iLevel / 10.0);
52     // 设置颜色
53     pe->setParticleColor(osg::Vec4(1, 1, 1, 1));
54     // 设置风向
55     pe->setWind(osg::Vec3(0, 0, 0));
56 
57     trans->addChild(pe);
58     root->addChild(trans);
59 
60     //最后，设置视窗类并进入仿真循环。
61     osgViewer::Viewer viewer;
62     //设置图形环境特性
63     osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits();
64     traits->x = 100;
65     traits->y = 200;
66     traits->width = 600;
67     traits->height = 500;
68     traits->windowDecoration = true;
69     traits->doubleBuffer = true;
70     traits->sharedContext = 0;
71     //创建图形环境特性
72     osg::ref_ptr<osg::GraphicsContext> gc = osg::GraphicsContext::createGraphicsContext(traits.get());
73     if (gc.valid())
74     {
75         osg::notify(osg::INFO)<<"  GraphicsWindow has been created successfully."<<std::endl;
76 
77         //清除窗口颜色及清除颜色和深度缓冲
78         gc->setClearColor(osg::Vec4f(0.2f,0.2f,0.6f,1.0f));
79         gc->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
80     }
81     else
82     {
83         osg::notify(osg::NOTICE)<<"  GraphicsWindow has not been created successfully."<<std::endl;
84     }
85     //设置视口
86     viewer.getCamera()->setViewport(new osg::Viewport(0,0, traits->width, traits->height));
87     //设置图形环境
88     viewer.getCamera()->setGraphicsContext(gc.get());
89     viewer.setSceneData( root );
90     return viewer.run();
91 }
View Code

 

posted on 2022-02-10 13:37  疯狂delphi  阅读(147)  评论(0)  编辑  收藏  举报

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