Northern Lights 4

A dark, atmospheric shader effect featuring a predominantly black and dark blue gradient background occupying the upper 60% of the image. The lower portion displays a luminous aurora-like phenomenon with a curved, wave-like structure. The aurora features a vibrant gradient transitioning from green (#29ff8d) on the left side through cyan and purple (#8d54ff) tones in the center, with hints of deep blue (#1122d9) creating depth. The effect has a soft, glowing quality with feathered edges that fade into the dark background, creating a sense of atmospheric light bending around a curved horizon. The waviness parameter (193) creates undulating, organic ripples across the light band, giving it a fluid, dynamic appearance. A subtle film grain texture overlays the entire composition, adding a cinematic quality and slight noise throughout. The lighting uses a linear dodge blend mode, making the aurora appear to emit light rather than reflect it, creating an ethereal, otherworldly glow. The effect suggests a northern lights or bioluminescent phenomenon viewed against a night sky.