I find it easier to control Reaktor with midi. The Reaktor implementation of OSC seems to be only a wrapper on its midi implementation anyway. In IanniX use messages of the form:

midi:///cc , or
midi:///bend

This is described in the documentation, along with the sending of note-on/note-off messages.

Here are some examples of the results of controlling other Native Instruments softsynths with midi:

https://www.youtube.com/user/chrisgr99

Reaktor can be controlled the same way.

I’ll be posting a few more demos soon and will include one with Reaktor.

– Chris