Osg-OsgShader着色器(Qt5.14.2+osgE3.6.5+win10)-No18-OsgShader

 

无着色器

 有着色器

 

相关资料：

https://blog.51cto.com/u_15127583/4054561   原文

实例代码：

.pro

 1 QT       += core gui widgets
 2 TARGET = TestOsgQt
 3 TEMPLATE = app
 4 DEFINES += QT_DEPRECATED_WARNINGS
 5 CONFIG += c++11
 6 
 7 QMAKE_CXXFLAGS_RELEASE = $$QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO
 8 QMAKE_LFLAGS_RELEASE = $$QMAKE_LFLAGS_RELEASE_WITH_DEBUGINFO
 9 
10 SOURCES += \
11         main.cpp
12 
13 HEADERS +=
14 
15 OsgDir = D:\\Gitee\\osg365R
16 CONFIG(release, debug|release) {
17         LIBS += -L$${OsgDir}/lib/ -losgDB -losgViewer -lOpenThreads -losgAnimation -losg \
18                                   -losgEarth -losgEarthAnnotation -losgEarthFeatures -losgEarthSymbology -losgEarthUtil \
19                                   -losgQOpenGL -losgUtil -losgText -losgTerrain -losgSim \
20                                   -losgShadow -losgParticle -losgManipulator -losgGA -losgFX \
21                                   -losgWidget
22 } else {
23         LIBS += -L$${OsgDir}/debug/lib/ -losgDBd -losgViewerd -lOpenThreadsd -losgAnimationd -losgd \
24                                   -losgEarthd -losgEarthAnnotationd -losgEarthFeaturesd -losgEarthSymbologyd -losgEarthUtild \
25                                   -losgQOpenGLd -losgUtild -losgTextd -losgTerraind -losgSimd \
26                                   -losgShadowd -losgParticled -losgManipulatord -losgGAd -losgFXd \
27 }
28 
29 
30 INCLUDEPATH += $${OsgDir}/include
31 DEPENDPATH += $${OsgDir}/include
View Code

main.cpp

 1 #ifdef _WIN32
 2 #include <Windows.h>
 3 #endif // _WIN32
 4 
 5 #include <osg/Group>
 6 #include <osg/Camera>
 7 #include <osgDB/ReadFile>
 8 #include <osg/Node>
 9 
10 #include <osg/Geometry>
11 #include <osg/Image>
12 #include <osg/ShapeDrawable>
13 #include <osg/Texture2D>
14 
15 #include <osg/MatrixTransform>
16 #include <osg/AnimationPath>
17 
18 #include <osgViewer/Viewer>
19 #include <osgViewer/ViewerEventHandlers>
20 
21 #include <osgGA/DriveManipulator>
22 #include <osgGA/GUIEventHandler>
23 #include <osgGA/GUIEventAdapter>
24 #include <osgGA/GUIActionAdapter>
25 
26 #include <osgGA/AnimationPathManipulator>
27 #include <osgGA/KeySwitchMatrixManipulator>
28 
29 #include <osgUtil/LineSegmentIntersector>
30 
31 #include <iostream>
32 using namespace std;
33 
34 //顶点着色器
35 static const char* vertShader = {
36     "varying vec4 color;\n"
37     "void main(void)\n"
38     "{\n"
39         "color = gl_Vertex;\n"
40         "gl_Position=gl_ModelViewProjectionMatrix*gl_Vertex;\n"
41     "}\n"
42 };
43 
44 //片元着色器
45 static const char* fragShader = {
46     "varying vec4 color;\n"
47     "void main(void)\n"
48     "{\n"
49     "    gl_FragColor = clamp(color,0.1,0.8);\n"
50     "}\n"
51 };
52 
53 int main()
54 {
55     osg::ref_ptr<osgViewer::Viewer> viewer1 = new osgViewer::Viewer;
56     osg::ref_ptr<osg::Group> group1 = new osg::Group;
57     osg::ref_ptr<osg::Program> program1 = new osg::Program;
58     osg::ref_ptr<osg::Node> node1 = osgDB::readNodeFile("D:/Gitee/OsgTestQt/src/No18-OsgShader/cessna.osgb");
59 
60     osg::ref_ptr<osg::StateSet> stateset1 = node1->getOrCreateStateSet();
61 
62     program1->addShader(new osg::Shader(osg::Shader::VERTEX, vertShader));
63     program1->addShader(new osg::Shader(osg::Shader::FRAGMENT, fragShader));
64 //    stateset1->setAttributeAndModes(program1, osg::StateAttribute::ON);
65 
66     group1->addChild(node1.get());
67     viewer1->setSceneData(group1);
68     viewer1->setUpViewInWindow(200, 200, 800, 600, 0);
69 
70     return viewer1->run();
71 }
View Code

 

posted on 2022-07-13 11:33  疯狂delphi  阅读(37)  评论(0)  编辑  收藏  举报

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