Method buildTree

src/IECoreScene/PointsPrimitiveEvaluator.cpp:253–269

}

void PointsPrimitiveEvaluator::buildTree()
{
	if( m_haveTree )
	{
		return;
	}

	std::lock_guard<TreeMutex> lock( m_treeMutex );
	if( m_haveTree )
	{
		// another thread may have built the tree while we waited for the mutex
		return;
	}

	m_tree.init( m_pVector->begin(), m_pVector->end() );
	m_haveTree = true;
}