Flash AS3 TUIO Client

The default transport method for TUIO is the delivery of binary OSC data by sending UDP packets via port 3333. This method ensures a compact, platform independent and low latency message delivery. Since Flash currently does not support TUIO/UDP we make use of an alternative TUIO/FLC (shared memory LocalConnection) method for Flash. There also exists an additional TUIO/TCP transport method, which can be used in conjunction with Flash.

The Flash/AS3 TUIO client reference implementation has been developed by Immanuel Bauer in collaboration with Dean North, Johannes Luderschmidt and Georg Kaindl. This library supports both TUIO/FLC and TUIO/TCP transport methods and implements the basic TUIO callback API. The library also provides a legacy API in order to support existing Flash examples, that have been based on the original touchlib API.

The current CVS version of the TUIO C++ reference implementation supports TUIO/FLC and TUIO/TCP in addition to the default TUIO/UDP transport and the next versions of reacTIVision and Touché will both support direct TUIO/FLC to be used with Flash.

Although many Flash examples are presently using a Flash/XML TUIO format, as delivered through Flosc or directly by the present version of CCV, this solution is not a direct representation of the TUIO protocol, since it encapsulates the TUIO data in rather large XML messages. Therefore we encourage the use of the TUIO/FLC gateway for trackers that only support standard TUIO/UDP.

Georg Kaindl explaining the technical background of TUIO/FLC and showing a brief demo

principal TUIO Flash Resources