Interfering waves pinched into bright electric filaments.

Two sine waves running on different axes interfere with a noise term amplified four times over, giving a scalar field with dense, irregular contours. Taking the absolute sine of that field and raising it to the eighth power crushes everything except the narrow bands around each zero-crossing, so what survives is a web of thin filaments against black. Filament colour swings amber to lime along the wave. The fastest-moving pattern in the batch — use it where you want visible energy, not ambience.