How to archieve similar particle effect While wathcing the trailer to the upcoming plugin "Stardust", at 00:13 mark of the video, there can be seen a particle effect that resembles a orb of power;



Since this plugin is not out yet, does anyone know how to archieve a similar effect as shown in the picture? To see it in motion click here.
It goes by pretty quickly! It looks to me like they've taken a frame of something that is white at the bottom and producing purple particles upwards, and then applied a rectangular to polar distortion to it, or possibly wrapped it into a 3D sphere.