#ifdef _WIN32

#include <Windows.h>

#endif // _WIN32

#include <osg/Group>

#include <osg/Camera>

#include <osgDB/ReadFile>

#include <osg/Node>

#include <osg/Geometry>

#include <osg/Image>

#include <osg/ShapeDrawable>

#include <osg/Texture2D>

#include <osg/MatrixTransform>

#include <osg/AnimationPath>

#include <osgViewer/Viewer>

#include <osgViewer/ViewerEventHandlers>

#include <osgGA/DriveManipulator>

#include <osgGA/GUIEventHandler>

#include <osgGA/GUIEventAdapter>

#include <osgGA/GUIActionAdapter>

#include <osgGA/AnimationPathManipulator>

#include <osgGA/KeySwitchMatrixManipulator>

#include <osgUtil/LineSegmentIntersector>

#include <iostream>

using namespace std;

//顶点着色器

static const char* vertShader = {

    "varying vec4 color;\n"

    "void main(void)\n"

    "{\n"

        "color = gl_Vertex;\n"

        "gl_Position=gl_ModelViewProjectionMatrix*gl_Vertex;\n"

    "}\n"

};

//片元着色器

static const char* fragShader = {

    "varying vec4 color;\n"

    "void main(void)\n"

    "{\n"

    "    gl_FragColor = clamp(color,0.1,0.8);\n"

    "}\n"

};

int main()

{

    osg::ref_ptr<osgViewer::Viewer> viewer1 = new osgViewer::Viewer;

    osg::ref_ptr<osg::Group> group1 = new osg::Group;

    osg::ref_ptr<osg::Program> program1 = new osg::Program;

    //osg::ref_ptr<osg::Node> node1 = osgDB::readNodeFile("D:\\参考手册\\BIM\\osg\\四合院2019.osgb");

    osg::ref_ptr<osg::Node> node1 = osgDB::readNodeFile("D:\\参考手册\\BIM\\obj\\person1.obj");

    osg::ref_ptr<osg::StateSet> stateset1 = node1->getOrCreateStateSet();

    program1->addShader(new osg::Shader(osg::Shader::VERTEX, vertShader));

    program1->addShader(new osg::Shader(osg::Shader::FRAGMENT, fragShader));

    stateset1->setAttributeAndModes(program1, osg::StateAttribute::ON);

    group1->addChild(node1.get());

    viewer1->setSceneData(group1);

    viewer1->setUpViewInWindow(, , , , );

    return viewer1->run();

}