Converting a “pluggo ready patch” into a “poly~ abstraction”

A common concern for many advanced Max users is the ability to load new sound modules into a running MSP patch without causing discontinuities in the sound. Many people worked around this by creating Pluggo plug-ins of their sound modules that could be loaded dynamically inside the vst~ object without breaking up the signal in the main patch. Another feature of the Pluggo engine was that it automatically generated the handy “egg-slider” GUI from the parameters specified in the patch. As exporting plug-ins is not currently available for Max 5, we will look at another alternative in this article based on a new feature of the poly~ object, which allows you to dynamically load new abstractions without recompiling the DSP. To help users explore this new alternative, we will demonstrate different ways to convert a Pluggo-ready patch made with MaxMSP 4.6 into a patch that you can load as a poly~ abstraction. Using the scripting capabilities of MaxMSP, we will also see how to automatically generate a Graphical User Interface for the newly converted poly~ abstraction. As this is a fairly advanced tutorial, you may need to consult the documentation browser for more details about the concepts and techniques involved.