[Closed] 3ds max interactive renderer plugin

Hi,
Is there anyone who has experience building interactive renderers for 3ds max?

I’m trying to adapt existing render plugin to be interactive but could not make it work for 3ds max 2016.
I’m aware of changes in 2017 sdk and I’ve already checked samples provided with 2017. Nonetheless I’m curious what I’m doing wrong and why my 2016 version doesn’t work.

There’s not much of the documentation about it so I did what I thought was sufficient. Namely:

1. Implemented IInteractiveRender and IIRenderMgr interfaces.
2. Implemented GetInterface() method in Renderer class that returns a pointer to the IInteractiveRender class.
   All that makes renderer to show up in ActiveShade renderers list but Render button doesn’t trigger anything.
   What else should I do to make it work? Documentation mentions referenceManager.h file that contains reference implementation but I couldn’t find that file anywhere in sdk.

Thanks,
Sergo.