While I’m playing with textures, I used a method similar to making grass to enhance my dimensional rift scene. These ray effects are pretty easy to make in Gimp and I doctored around with lumas and alpha channel/entity alpha to get some more or less interesting results.
Keep in mind this is only a first try. I’m pretty sure I want to animate both the effect and the models, i.e. have the bodies be sucked up into the anomaly slowly. All that isn’t very hard to do, but right now I probably should block out the rest of the level before I come back for stuff like that.