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Code Issues Releases Activity

LP-29 improve OSGViewport rendering loop

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update scene in the Renderer synchronize method
This commit is contained in:
Philippe Renon 2015-12-09 08:19:55 +01:00
parent f9694acfd1
commit 7461159c69
1 changed files with 32 additions and 9 deletions
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41
ground/gcs/src/libs/osgearth/osgQtQuick/OSGViewport.cpp
View File

@ -361,8 +361,9 @@ public:
// add the screen capture handler
// view->addEventHandler(new osgViewer::ScreenCaptureHandler);
osg::GraphicsContext *gc = createGraphicsContext();
// setup graphics context and camera
osg::Camera *camera = view->getCamera();
osg::GraphicsContext *gc = createGraphicsContext();
camera->setGraphicsContext(gc);
camera->setViewport(new osg::Viewport(0, 0, gc->getTraits()->width, gc->getTraits()->height));
@ -470,6 +471,9 @@ public:
osgQtQuick::openGLContextInfo(QOpenGLContext::currentContext(), "ViewportRenderer::ViewportRenderer");
h->initializeResources();
firstFrame = true;
needToDoFrame = false;
}
~ViewportRenderer()
@ -477,7 +481,6 @@ public:
qDebug() << "ViewportRenderer::~ViewportRenderer";
osgQtQuick::openGLContextInfo(QOpenGLContext::currentContext(), "ViewportRenderer::~ViewportRenderer");
h->releaseResources();
}
// This function is the only place when it is safe for the renderer and the item to read and write each others members.
@ -486,12 +489,29 @@ public:
// qDebug() << "ViewportRenderer::synchronize";
// osgQtQuick::openGLContextInfo(QOpenGLContext::currentContext(), "ViewportRenderer::synchronize");
if (!h->viewer.valid()) {
qWarning() << "ViewportRenderer::synchronize - invalid viewer";
return;
}
if (!h->view.valid()) {
qWarning() << "ViewportRenderer::synchronize - invalid view";
return;
}
// need to split frame() open and do the synchronization here (calling update callbacks, etc...)
needToDoFrame = h->viewer->checkNeedToDoFrame();
if (needToDoFrame) {
if (firstFrame) {
h->view->init();
if (!h->viewer->isRealized()) {
h->viewer->realize();
}
firstFrame = false;
}
h->viewer->advance();
h->viewer->eventTraversal();
h->viewer->updateTraversal();
}
}
// This function is called when the FBO should be rendered into.
@ -502,16 +522,16 @@ public:
// osgQtQuick::openGLContextInfo(QOpenGLContext::currentContext(), "ViewportRenderer::render");
if (!h->viewer.valid()) {
qWarning() << "ViewportRenderer::render - invalid viewport";
qWarning() << "ViewportRenderer::render - invalid viewer";
return;
}
// needed to properly render models without terrain (Qt bug?)
QOpenGLContext::currentContext()->functions()->glUseProgram(0);
if (h->viewer->checkNeedToDoFrame()) {
// TODO scene update should NOT be done here
h->viewer->frame();
if (needToDoFrame) {
// needed to properly render models without terrain (Qt bug?)
QOpenGLContext::currentContext()->functions()->glUseProgram(0);
h->viewer->renderingTraversals();
needToDoFrame = false;
}
if (h->updateMode == UpdateMode::Continuous) {
@ -544,6 +564,9 @@ public:
private:
OSGViewport::Hidden *h;
bool firstFrame;
bool needToDoFrame;
};
osg::ref_ptr<osg::GraphicsContext> OSGViewport::Hidden::dummy;