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code reduction w.r.t offscreen rendering

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This commit is contained in:
wmayer
2018-01-07 17:12:50 +01:00
parent 8eaee314ac
commit 22ed0bce51
9 changed files with 67 additions and 199 deletions
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46
src/Gui/View3DInventorViewer.cpp
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@@ -925,7 +925,7 @@ void View3DInventorViewer::setSceneGraph(SoNode* root)
}
}
void View3DInventorViewer::savePicture(int w, int h, const QColor& bg, QImage& img) const
void View3DInventorViewer::savePicture(int w, int h, int s, const QColor& bg, QImage& img) const
{
bool useCoinOffscreenRenderer = false;
useCoinOffscreenRenderer = App::GetApplication().GetParameterGroupByPath
@@ -1007,7 +1007,7 @@ void View3DInventorViewer::savePicture(int w, int h, const QColor& bg, QImage& i
// render the scene
if (!useCoinOffscreenRenderer) {
SoQtOffscreenRenderer renderer(vp);
renderer.setNumPasses(4);
renderer.setNumPasses(s);
if (bgColor.isValid())
renderer.setBackgroundColor(SbColor4f(bgColor.redF(), bgColor.greenF(), bgColor.blueF(), bgColor.alphaF()));
if (!renderer.render(root))
@@ -1020,7 +1020,7 @@ void View3DInventorViewer::savePicture(int w, int h, const QColor& bg, QImage& i
SoFCOffscreenRenderer& renderer = SoFCOffscreenRenderer::instance();
renderer.setViewportRegion(vp);
renderer.getGLRenderAction()->setSmoothing(true);
renderer.getGLRenderAction()->setNumPasses(4);
renderer.getGLRenderAction()->setNumPasses(s);
if (bgColor.isValid())
renderer.setBackgroundColor(SbColor(bgColor.redF(), bgColor.greenF(), bgColor.blueF()));
if (!renderer.render(root))
@@ -1405,6 +1405,46 @@ QImage View3DInventorViewer::grabFramebuffer()
return res;
}
void View3DInventorViewer::imageFromFramebuffer(int width, int height, int samples,
const QColor& bgcolor, QImage& img)
{
QtGLWidget* gl = static_cast<QtGLWidget*>(this->viewport());
gl->makeCurrent();
const QtGLContext* context = QtGLContext::currentContext();
if (!context) {
Base::Console().Warning("imageFromFramebuffer failed because no context is active\n");
return;
}
QtGLFramebufferObjectFormat fboFormat;
fboFormat.setSamples(samples);
fboFormat.setAttachment(QtGLFramebufferObject::Depth);
//With enabled alpha a transparent background is supported but
//at the same time breaks semi-transparent models
#if defined(HAVE_QT5_OPENGL)
//fboFormat.setInternalTextureFormat(GL_RGBA32F_ARB);
fboFormat.setInternalTextureFormat(GL_RGB32F_ARB);
#else
//fboFormat.setInternalTextureFormat(GL_RGBA);
fboFormat.setInternalTextureFormat(GL_RGB);
#endif
QtGLFramebufferObject fbo(width, height, fboFormat);
const QColor col = backgroundColor();
bool on = hasGradientBackground();
if (bgcolor.isValid()) {
setBackgroundColor(bgcolor);
setGradientBackground(false);
}
renderToFramebuffer(&fbo);
setBackgroundColor(col);
setGradientBackground(on);
img = fbo.toImage();
}
void View3DInventorViewer::renderToFramebuffer(QtGLFramebufferObject* fbo)
{
static_cast<QtGLWidget*>(this->viewport())->makeCurrent();