Method VisibilityQuery

trinity/Interior/Tr2InteriorScene.cpp:511–557

-------------------------------------------------------------------------------------- Description: Issues a visibility query and stores the results in the given visibility results set. This function returns early and issues a log error message if the results set is NULL. The interior scene holds a pointer to the results set, so it can be reused elsewhere. Arguments: results - The results set pop

//   results - The results set populated by the visibility query
// --------------------------------------------------------------------------------------
void Tr2InteriorScene::VisibilityQuery( Tr2VisibilityResults* results, Tr2RenderContext& renderContext )
{
	CCP_STATS_ZONE( __FUNCTION__ );

	if( !results )
	{
		CCP_LOGERR( "Attempt to issue a visibility query on an interior scene with a NULL "
					"result set!" );
		return;
	}

	m_visibilityResults = results;
	m_visibilityResults->Clear();

	// Choose LOD for dynamics
	TriFrustum frustum;
	frustum.DeriveFrustum(
		&Tr2Renderer::GetViewTransform(),
		&Tr2Renderer::GetViewPosition(),
		&Tr2Renderer::GetProjectionTransform(),
		renderContext.m_esm.GetViewport() );

	//this is to assist in tracking down the crash that's been popping up in this function.
	//The bools are here just in case logging breaks during the crash
	const size_t dynamicsSize = m_dynamics.size();

	for( PITr2InteriorDynamicVector::iterator it = m_dynamics.begin(); it != m_dynamics.end(); ++it )
	{
		if( dynamicsSize != m_dynamics.size() )
		{
			CCP_LOGERR( "VisibilityQuery-m_dynamics changed size while we iterated over it! (before setlod)" );
		}
		if( !*it )
		{
			CCP_LOGERR( "VisibilityQuery-null pointer in m_dynamics" );
		}
		( *it )->SetLOD( &frustum );
		if( dynamicsSize != m_dynamics.size() )
		{
			CCP_LOGERR( "VisibilityQuery-m_dynamics changed size while we iterated over it! (after setlod)" );
		}
	}

	m_visibilityQueryType = PRIMARY_QUERY;

	ResolveVisibility( Tr2Renderer::GetViewTransform(), Tr2Renderer::GetProjectionTransform(), true );
}

void Tr2InteriorScene::ResolveVisibility( const Matrix& view, const Matrix& projection, size_t maxDepth )
{