FGFS-4.1/OpenSceneGraph
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Added --flip and --no-flip command line options to enable/disable a vertical flip of the captured image before writing out to disk.

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This commit is contained in:
Robert Osfield
2012-12-08 16:11:00 +00:00
parent 22868bce4f
commit 8d999a07cf
3 changed files with 18 additions and 4 deletions
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15
examples/osgframerenderer/osgframerenderer.cpp
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@@ -17,7 +17,8 @@
struct ScreenShot : public osg::Camera::DrawCallback
{
ScreenShot() {}
ScreenShot(bool flip):
_flip(flip) {}
virtual void operator () (osg::RenderInfo& renderInfo) const
{
@@ -48,6 +49,8 @@ struct ScreenShot : public osg::Camera::DrawCallback
image->readPixels(viewport->x(),viewport->y(),viewport->width(),viewport->height(),
GL_RGB, GL_UNSIGNED_BYTE, 1);
if (_flip) image->flipVertical();
osgDB::writeImageFile(*image, outputFileName);
}
@@ -55,8 +58,9 @@ struct ScreenShot : public osg::Camera::DrawCallback
typedef std::map<const osg::Camera*, unsigned int> CameraNumMap;
osg::ref_ptr<gsc::CaptureSettings> _frameCapture;
CameraNumMap _cameraNumMap;
bool _flip;
osg::ref_ptr<gsc::CaptureSettings> _frameCapture;
CameraNumMap _cameraNumMap;
};
int main( int argc, char **argv )
@@ -226,6 +230,9 @@ int main( int argc, char **argv )
if (arguments.read("--offscreen")) fc->setOffscreen(true);
if (arguments.read("--screen")) fc->setOffscreen(false);
if (arguments.read("--flip")) fc->setOutputImageFlip(true);
if (arguments.read("--no-flip")) fc->setOutputImageFlip(false);
unsigned int width = 1024;
if (arguments.read("--width",width)) fc->setWidth(width);
@@ -468,7 +475,7 @@ int main( int argc, char **argv )
viewer.realize();
// set up screen shot
osg::ref_ptr<ScreenShot> screenShot = new ScreenShot;
osg::ref_ptr<ScreenShot> screenShot = new ScreenShot(fc->getOutputImageFlip());;
{
osgViewer::Viewer::Cameras cameras;