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