fourier transform - How does Adobe After Effects generate its "audio spectrum" effect?

I'm trying to replicate the "audio spectrum" effect from Adobe After Effects. An example can be seen in this video:

Obviously, it has to be some variant of a fourier transform, but I've tried taking the fft of an audio sample in realtime and my implementation looks more like a big block of bars:

I imagine some kind of intermediate function is being applied to the fft, but I can't really figure out what it might be.