Hasta La Motion!

Hi Guys,
Just wondering if this is possible; i’m new to Nuke’s 3d but am itching to get more into it…
I’ve got a scene in 3dsMax with an animated camera and a sphere representing a sun. I have successfully exported these to Nuke via the ‘Nuke em 2.8.2’ script, and can see the camera moving around, the sun in it’s static position, but moving around the screen correctly through the scanline renderer.
What I want to do, is basically attach a flare to this sphere which represents the sun, the theory being that I can use the 3d camera and not have to worry about tracking anything or dealing with 2d coordinates… Now; is it possible to use a flare like this in a 3d environment?

At the moment, the sphere is textured with a solid colour – with my limited knowledge i’m trying to add the flare onto the sphere, but it is using the flare as a texture and wrapping it around the imported obj sphere – this isn’t what i’m after…

I would also want to extend this if I could, to have the sphere’s xyz coordinates as the centre for a volumerays or godrays node, and again view this through the scanline renderer with a 2d sequence for the alpha mask – I might be getting ahead of myself here and it might be that these 2d nodes can’t talk to the 3d nodes, but any advise would be much appreciated.

Many Thanks