FFL is an intuitive visual programming environment – a kit of reusable components, Flash units and filters - that can be wired together to build so-called scenes. Those can comprise complex visual filters, effects and interactive Flash movies. Using FFL, you create graphical flowcharts to model real-time effects. Effects are built as a model of nodes. Those are the basic functional units of FFL. They have connectors in order to communicate with each other. To attain a contact between two nodes you just drag-and-drop a line between the desired connectors.