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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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58
src/Gui/View3DPy.cpp
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@@ -26,6 +26,8 @@
#ifndef __InventorAll__
# include "InventorAll.h"
# include <sstream>
# include <QImage>
# include <QGLFramebufferObject>
#endif
@@ -556,6 +558,37 @@ Py::Object View3DInventorPy::isAnimationEnabled(const Py::Tuple& args)
return Py::Boolean(ok ? true : false);
}
void View3DInventorPy::createImageFromFramebuffer(int backgroundType, int width, int height, QImage& img)
{
QGLFramebufferObject fbo(width, height, QGLFramebufferObject::Depth);
const SbColor col = _view->getViewer()->getBackgroundColor();
bool on = _view->getViewer()->hasGradientBackground();
switch(backgroundType){
case 0: // Current
break;
case 1: // Black
_view->getViewer()->setBackgroundColor(SbColor(0.0f,0.0f,0.0f));
_view->getViewer()->setGradientBackground(false);
break;
case 2: // White
_view->getViewer()->setBackgroundColor(SbColor(1.0f,1.0f,1.0f));
_view->getViewer()->setGradientBackground(false);
break;
case 3: // Transparent
_view->getViewer()->setBackgroundColor(SbColor(1.0f,1.0f,1.0f));
_view->getViewer()->setGradientBackground(false);
break;
default:
break;
}
_view->getViewer()->renderToFramebuffer(&fbo);
_view->getViewer()->setBackgroundColor(col);
_view->getViewer()->setGradientBackground(on);
img = fbo.toImage();
}
Py::Object View3DInventorPy::saveImage(const Py::Tuple& args)
{
char *cFileName,*cImageType="Current",*cComment="$MIBA";
@@ -587,24 +620,23 @@ Py::Object View3DInventorPy::saveImage(const Py::Tuple& args)
else
throw Py::Exception("Parameter 4 have to be (Current|Black|White|Transparent)");
#endif
if (App::GetApplication().GetParameterGroupByPath
("User parameter:BaseApp/Preferences/Document")->GetBool("DisablePBuffers",false)) {
QImage img;
createImageFromFramebuffer(t, w, h, img);
img.save(QString::fromUtf8(cFileName));
return Py::None();
}
try {
QColor c;
_view->getViewer()->savePicture(cFileName,w,h,t,cComment);
return Py::None();
}
catch (const Base::Exception& e) {
Base::Console().Log("Try disabling the use of pbuffers, set the environment variables\n"
"COIN_GLXGLUE_NO_PBUFFERS=1\n"
"COIN_GLXGLUE_NO_GLX13_PBUFFERS=1\n"
"and re-run the application.\n");
throw Py::Exception(e.what());
}
catch (const std::exception& e) {
throw Py::Exception(e.what());
}
catch(...) {
throw Py::Exception("Unknown C++ exception");
catch (const Base::Exception&) {
QImage img;
createImageFromFramebuffer(t, w, h, img);
img.save(QString::fromUtf8(cFileName));
return Py::None();
}
}