3D objects have to be .x format I believe - can't tell you any more than that as I stay away from the 3D side of the engine. You should be able to load exported Spine files into 3D characters tab or into the 3D object path box thing in properties tab of scene objects - again unconfirmed as I don't own Spine. Too expensive for me.
I got it to work! I downloaded the free Spine viewer to test the exported spine file from the Esoteric Software site (
http://esotericsoftware.com/spine-skeleton-viewer) and loaded up the Spine file that I exported in Dragonbones.
At first the graphic elements wouldn't show up in there either, but after some quick testing I discovered I had to move the assets to the same folder as the JSON file, and it works!!!
Visionaire is a bit crash-prone when playing these animations in the editor - after changing the animation center, it seemed quite stable, though, and Visionaire plays all the animations in the editor as well.
It looks awesome. I have the giant fire demon from Dragonbones running absolutely smooth in the minimum test setup game (with the mars background). A small issue with the mouse offset remains at this point: at the right of this screen the position where the user clicks and the position the character moves to are off.
Spine test demo project files download:
http://estructor.altervista.org/Dragonbones_test.zip(updated the file: I uploaded the wrong one before.)
Anyway, it seems we now have a FREE option to import Spine-based cut-out animated characters into Visionaire!!! Dragonbones!
http://dragonbones.com/en/(With the caveat that Dragonbones must be online to export to Spine, and we have to login for this service.)