FGFS-4.1/OpenSceneGraph
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Added set up of CulLVisitor::Identifier so that the double buffered SceneView/CullVisitor

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share the same Identifier.
This commit is contained in:
Robert Osfield 2011-03-17 13:54:54 +00:00
parent e28f9a7d32
commit 6e182e7c17
1 changed files with 18 additions and 0 deletions
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18
src/osgViewer/Renderer.cpp
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@ -409,6 +409,24 @@ Renderer::Renderer(osg::Camera* camera):
_sceneView[0]->setCamera(_camera.get(), false);
_sceneView[1]->setCamera(_camera.get(), false);
{
// assign CullVisitor::Identifier so that the double buffering of SceneView doesn't interfer
// with code that requires a consistent knowledge and which effective cull traversal to taking place
osg::ref_ptr<osgUtil::CullVisitor::Identifier> leftEyeIdentifier = _sceneView[0]->getCullVisitor()->getIdentifier();
osg::ref_ptr<osgUtil::CullVisitor::Identifier> rightEyeIdentifier = new osgUtil::CullVisitor::Identifier();
_sceneView[0]->setCullVisitorLeft(_sceneView[0]->getCullVisitor()->clone());
_sceneView[0]->getCullVisitorLeft()->setIdentifier(leftEyeIdentifier.get());
_sceneView[0]->setCullVisitorRight(_sceneView[0]->getCullVisitor()->clone());
_sceneView[0]->getCullVisitorRight()->setIdentifier(rightEyeIdentifier.get());
_sceneView[1]->getCullVisitor()->setIdentifier(leftEyeIdentifier.get());
_sceneView[1]->setCullVisitorLeft(_sceneView[1]->getCullVisitor()->clone());
_sceneView[1]->getCullVisitorLeft()->setIdentifier(leftEyeIdentifier.get());
_sceneView[1]->setCullVisitorRight(_sceneView[1]->getCullVisitor()->clone());
_sceneView[1]->getCullVisitorRight()->setIdentifier(rightEyeIdentifier.get());
}
// lock the mutex for the current cull SceneView to
// prevent the draw traversal from reading from it before the cull traversal has been completed.
_availableQueue.add(_sceneView[0].get());