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+ switch between old and new offscreen renderer

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This commit is contained in:
wmayer 2015-05-08 00:54:09 +02:00
parent 00438fffd2
commit f840f89922
1 changed files with 36 additions and 12 deletions
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48
src/Gui/View3DInventorViewer.cpp
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@ -76,6 +76,7 @@
# include <Inventor/VRMLnodes/SoVRMLGroup.h>
# include <QEventLoop>
# include <QGLFramebufferObject>
# include <QGLPixelBuffer>
# include <QKeyEvent>
# include <QWheelEvent>
# include <QMessageBox>
@ -862,6 +863,11 @@ void View3DInventorViewer::setSceneGraph(SoNode* root)
void View3DInventorViewer::savePicture(int w, int h, const QColor& bg, QImage& img) const
{
// If 'QGLPixelBuffer::hasOpenGLPbuffers()' returns false then
// SoQtOffscreenRenderer won't work. In this case we try to use
// Coin's implementation of the off-screen rendering.
bool useCoinOffscreenRenderer = !QGLPixelBuffer::hasOpenGLPbuffers();
// if no valid color use the current background
bool useBackground = false;
SbViewportRegion vp(getSoRenderManager()->getViewportRegion());
@ -873,15 +879,14 @@ void View3DInventorViewer::savePicture(int w, int h, const QColor& bg, QImage& i
//The default value is 72.0.
//If we need to support grayscale images with must either use SoOffscreenRenderer::LUMINANCE or
//SoOffscreenRenderer::LUMINANCE_TRANSPARENCY.
SoQtOffscreenRenderer renderer(vp);
renderer.setNumPasses(4);
SoCallback* cb = 0;
// for an invalid color use the viewer's current background color
QColor bgColor;
if (!bg.isValid()) {
if (backgroundroot->findChild(pcBackGround) == -1) {
const QColor col = this->backgroundColor();
renderer.setBackgroundColor(SbColor(col.redF(), col.greenF(), col.blueF()));
bgColor = this->backgroundColor();
}
else {
useBackground = true;
@ -890,7 +895,7 @@ void View3DInventorViewer::savePicture(int w, int h, const QColor& bg, QImage& i
}
}
else {
renderer.setBackgroundColor(SbColor(bg.redF(), bg.greenF(), bg.blueF()));
bgColor = bg;
}
SoSeparator* root = new SoSeparator;
@ -900,9 +905,11 @@ void View3DInventorViewer::savePicture(int w, int h, const QColor& bg, QImage& i
// The behaviour in Coin4 has changed so that when using the same instance of 'SoFCOffscreenRenderer'
// multiple times internally the biggest viewport size is stored and set to the SoGLRenderAction.
// The trick is to add a callback node and override the viewport size with what we want.
//SoCallback* cbvp = new SoCallback;
//cbvp->setCallback(setViewportCB);
//root->addChild(cbvp);
if (useCoinOffscreenRenderer) {
SoCallback* cbvp = new SoCallback;
cbvp->setCallback(setViewportCB);
root->addChild(cbvp);
}
#endif
SoCamera* camera = getSoRenderManager()->getCamera();
@ -926,11 +933,28 @@ void View3DInventorViewer::savePicture(int w, int h, const QColor& bg, QImage& i
try {
// render the scene
if (!renderer.render(root))
throw Base::Exception("Offscreen rendering failed");
if (!useCoinOffscreenRenderer) {
SoQtOffscreenRenderer renderer(vp);
renderer.setNumPasses(4);
if (bgColor.isValid())
renderer.setBackgroundColor(SbColor(bgColor.redF(), bgColor.greenF(), bgColor.blueF()));
if (!renderer.render(root))
throw Base::Exception("Offscreen rendering failed");
renderer.writeToImage(img);
root->unref();
renderer.writeToImage(img);
root->unref();
}
else {
SoFCOffscreenRenderer& renderer = SoFCOffscreenRenderer::instance();
renderer.setViewportRegion(vp);
if (bgColor.isValid())
renderer.setBackgroundColor(SbColor(bgColor.redF(), bgColor.greenF(), bgColor.blueF()));
if (!renderer.render(root))
throw Base::Exception("Offscreen rendering failed");
renderer.writeToImage(img);
root->unref();
}
}
catch (...) {
root->unref();