FGFS-4.1/OpenSceneGraph
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OcclusionQueryNode: reset the test result of the invalid geometry

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There're cases that the occlusion test result has been retrieved
after the query geometry has been changed, it's the result of the
geometry before the change.
This commit is contained in:
Daniel Trstenjak
2019-01-29 14:40:16 +01:00
committed by Robert Osfield
parent 5624a22fe4
commit 5770774e00
1 changed files with 7 additions and 1 deletions
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8
src/osg/OcclusionQueryNode.cpp
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@@ -483,8 +483,15 @@ bool OcclusionQueryNode::getPassed( const Camera* camera, NodeVisitor& nv )
return _passed;
}
QueryGeometry* qg = static_cast< QueryGeometry* >( _queryGeode->getDrawable( 0 ) );
if ( !_validQueryGeometry )
{
// There're cases that the occlusion test result has been retrieved
// after the query geometry has been changed, it's the result of the
// geometry before the change.
qg->reset();
// The box of the query geometry is invalid, return false to not traverse
// the subgraphs.
_passed = false;
@@ -513,7 +520,6 @@ bool OcclusionQueryNode::getPassed( const Camera* camera, NodeVisitor& nv )
_passed = true;
return _passed;
}
QueryGeometry* qg = static_cast< QueryGeometry* >( _queryGeode->getDrawable( 0 ) );
// Get the near plane for the upcoming distance calculation.
osg::Matrix::value_type nearPlane;