Long ago I created what is now my profile picture here and many other places. Back then I never saved my .psd files, just images. I am now trying to re-create it in higher resolution and other colors. However, I don't know how I made that radial effect.
It looks like it might have been radial blur, but it gets way to blurred when i use it. It feels like it some sort of radial effect, but sharper than blur. Any ideas?
Edit 1: I have tried to use polar coordinates to distort it, while it is similar, you don't get the same burst effect in the center as in the original picture.