FGFS-4.1/OpenSceneGraph
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From Jose Delport: "have been using the new VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY mode

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of the OverlayNode.

I change the overlay subgraph dynamically and when I remove all the
subgraph nodes that is inside the current main camera FOV (others
outside still exist), the overlay texture does not update because of the
early return in the traversal. I then get a kind of ghost texture moving
around the terrain.

The attached file fixed the problem for me, but I'm not sure if it is
the best way to address the problem."
This commit is contained in:
Robert Osfield
2007-09-24 09:35:59 +00:00
parent bd68958877
commit 0726624a86
1 changed files with 8 additions and 2 deletions
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10
src/osgSim/OverlayNode.cpp
View File

@@ -1501,8 +1501,14 @@ void OverlayNode::traverse_VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY(osg::NodeVis
#else
overlayPolytope.computeSilhoette(lookVector, corners);
#endif
if (corners.empty()) return;
if (corners.empty())
{
camera->setClearColor(_overlayClearColor);
//camera->setStateSet(overlayData._overlayStateSet.get());
camera->accept(*cv);
return;
}
if (overlayData._geode.valid())
{
overlayData._geode->addDrawable(overlayPolytope.createDrawable(osg::Vec4d(1.0f,1.0f,1.0f,1.0f)));