d9c1f45231
In Scene::updateSceneGraph(), change:
if (getSceneData())
{
updateVisitor.setImageRequestHandler(getImagePager());
getSceneData()->accept(updateVisitor);
}
if (getDatabasePager())
{
// synchronize changes required by the DatabasePager thread to the scene graph
getDatabasePager()->updateSceneGraph((*updateVisitor.getFrameStamp()));
}
to
if (getDatabasePager())
{
// synchronize changes required by the DatabasePager thread to the scene graph
getDatabasePager()->updateSceneGraph((*updateVisitor.getFrameStamp()));
}
if (getSceneData())
{
updateVisitor.setImageRequestHandler(getImagePager());
getSceneData()->accept(updateVisitor);
}
That is, just swap the positions of two 'if () {...}' segments.
While working on a paged terrain, I need to collect every newly allocated PagedLODs and make them temporarily unrenderable in the next frame, which are all done in a update callback. But I found that these PagedLODs will always be shown before collecting them, because of the unsuitable sequence in Scene::updateSceneGraph(). DatabasePager is synchronized AFTER the user updating traversal, that is, user cannot IMMEDIATELY find out changes made by DatabasePager.
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| .. | ||
| OpenThreads | ||
| osg | ||
| osgAnimation | ||
| osgDB | ||
| osgFX | ||
| osgGA | ||
| osgIntrospection | ||
| osgManipulator | ||
| osgParticle | ||
| osgPlugins | ||
| osgPresentation | ||
| osgShadow | ||
| osgSim | ||
| osgTerrain | ||
| osgText | ||
| osgUtil | ||
| osgViewer | ||
| osgVolume | ||
| osgWidget | ||
| osgWrappers | ||
| CMakeLists.txt | ||