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Use framebuffer object as fallback for off-screen rendering

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This commit is contained in:
wmayer
2013-06-19 17:42:28 +02:00
parent 371340221d
commit 561c117f2d
8 changed files with 111 additions and 34 deletions
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29
src/Gui/View3DInventor.cpp
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@@ -27,6 +27,7 @@
# include <QAction>
# include <QApplication>
# include <QFileInfo>
# include <QGLFramebufferObject>
# include <QKeyEvent>
# include <QEvent>
# include <QDropEvent>
@@ -483,12 +484,38 @@ void View3DInventor::print(QPrinter* printer)
QImage img;
QPainter p(printer);
QRect rect = printer->pageRect();
_viewer->savePicture(rect.width(), rect.height(), View3DInventorViewer::White, img);
if (App::GetApplication().GetParameterGroupByPath
("User parameter:BaseApp/Preferences/Document")->GetBool("DisablePBuffers",false)) {
previewFromFramebuffer(rect, img);
}
else {
try {
_viewer->savePicture(rect.width(), rect.height(), View3DInventorViewer::White, img);
}
catch (...) {
previewFromFramebuffer(rect, img);
}
}
p.drawImage(0,0,img);
p.end();
#endif
}
void View3DInventor::previewFromFramebuffer(const QRect& rect, QImage& img)
{
QGLFramebufferObject fbo(rect.width(), rect.height(), QGLFramebufferObject::Depth);
const SbColor col = _viewer->getBackgroundColor();
bool on = _viewer->hasGradientBackground();
_viewer->setBackgroundColor(SbColor(1.0f,1.0f,1.0f));
_viewer->setGradientBackground(false);
_viewer->renderToFramebuffer(&fbo);
_viewer->setBackgroundColor(col);
_viewer->setGradientBackground(on);
img = fbo.toImage();
}
// **********************************************************************************
bool View3DInventor::onMsg(const char* pMsg, const char** ppReturn)