Method PerformPicking

trinity/Eve/EveSpaceScene.cpp:3552–3761

}

void EveSpaceScene::PerformPicking( EvePickingContext* listener, bool immediate, int x, int y, TriProjection* proj, TriView* view, TriViewport* viewport, Tr2PickTypes pickTypes, Tr2PrimaryRenderContext& renderContext )
{
	if( !renderContext.IsValid() )
	{
		return;
	}

	float fx, fy;
	Vector3 startWorld;
	Vector3 dirWorld;
	gTriDev->ScreenToProjection( x, y, &fx, &fy, viewport );

	// Get view and projection transforms
	Matrix projTransform;
	proj->GetMatrixWithoutViewAdjustment( projTransform );
	const Matrix& viewTransform = view->GetTransform();

	ConvertProjectionCoordToWorldPickRay( fx, fy, &projTransform, &viewTransform, &startWorld, &dirWorld );

	EvePendingPickingReadback& readback = *listener->m_readbacks.emplace_back( std::make_unique<EvePendingPickingReadback>( x, y ) );



	// Backup current state
	Tr2Renderer::PushProjection();
	ON_BLOCK_EXIT( Tr2Renderer::PopProjection );
	Tr2Renderer::PushViewTransform();
	ON_BLOCK_EXIT( Tr2Renderer::PopViewTransform );
	renderContext.m_esm.PushViewport();
	ON_BLOCK_EXIT( [&] { renderContext.m_esm.PopViewport(); } );

	// Render for picking, limit our view to the pick ray
	SetupTransformsForPicking( fx, fy, proj, view, viewport, renderContext );


	if( m_debugRenderer )
	{
		m_debugRenderer->Pick( readback, immediate, renderContext );
	}

	std::vector<ITr2Renderable*> visibleObjects;
	GetPickingObjectsToRender( visibleObjects );


	std::vector<std::pair<ITr2PickablePtr, ITr2Renderable*>>& collisionSet = readback.m_collisionSet;
	collisionSet.reserve( visibleObjects.size() );

	for( std::vector<ITr2Renderable*>::const_iterator it = visibleObjects.begin(); it != visibleObjects.end(); ++it )
	{
		ITr2PickablePtr pickedObj( BlueCastPtr( *it ) );
		if( pickedObj )
		{
			collisionSet.push_back( std::make_pair( pickedObj, *it ) );
		}
	}

	// Get batches from shared instanced meshes
	{