[osg-users] Read frame buffer back into main memory

[Antoine Rennuit]

Hello Robert,

And thanks for you message. I am trying to write the image to a file using


Code:

class ReadPixelsCallback : public osg::Camera::DrawCallback
{
public:
    virtual void operator()( osg::RenderInfo& renderInfo ) const
    {
        osg::GraphicsContext* gc = renderInfo.getState()->getGraphicsContext();

        int width = gc->getTraits()->width;
        int height = gc->getTraits()->height;

        osg::ref_ptr<osg::Image> image = new osg::Image;
        image->readPixels(0, 0, gc->getTraits()->width, gc->getTraits()->height, GL_RGB, GL_UNSIGNED_BYTE);



        bool retValBmp = osgDB::writeImageFile(*image, "/home/enjyi/testImage.bmp");
        bool retValJpg = osgDB::writeImageFile(*image, "/home/enjyi/testImage.jpg");
    }
};




but all I get is 


Code:

Error writing file /home/arennuit/testImage.bmp: Warning: Could not find plugin to write image to file "/home/arennuit/testImage.bmp".
Error writing file /home/arennuit/testImage.jpg: Warning: Could not find plugin to write image to file "/home/arennuit/testImage.jpg".




Any idea why OSG cannot my plugins?

Regards,

Antoine.[/code]

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