生成osg图像并保存

#include "osgViewer/Viewer"

#include "osgDB/WriteFile"

#include "osgDB/ReadFile"

#include "osgGA/TrackballManipulator"

#include <osgViewer/GraphicsWindow>

 

void main()

{

    //////////////////////////////////////////////////////////////////////////

    //得到屏幕分辨率

    osg::GraphicsContext::WindowingSystemInterface* wsi = osg::GraphicsContext::getWindowingSystemInterface();

    unsigned int width, height;

    wsi->getScreenResolution(osg::GraphicsContext::ScreenIdentifier(0), width, height);

    ///////////////////////////////////////////////////////////////////////////

    osgViewer::Viewer v;

    v.setSceneData(osgDB::readNodeFile("axes.osg"));

    v.setCameraManipulator(new osgGA::TrackballManipulator());

    v.frame();

    osg::ref_ptr<osg::Image> image = new osg::Image;

    image->readPixels(0,0,width,height, GL_RGB,GL_UNSIGNED_BYTE);

    osgDB::writeImageFile(*image,"abc.jpg");

}

 

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