This texture was generated in Filter Forge, a Photoshop plugin that allows you to create your own filters.
This filter simply makes black and white spheres, of a sort. the sort is, fuzzy ones, or more aptly put, spheres with a gradient across them.
The circle base is of my own design (I think. Forgive me if I've copied this from someone else. It's been a while.) The grid behind the sphere is from Uberzev's "sphere".
Crag Kraellin Walters circle sphere fuzzy gradient profile grid uberzev