Renders 2-3 overlapping radial gradients in warm tones (orange, amber, white) that shift position and opacity over time using Math.sin(), simulating a film burn / light leak. The effect peaks mid-animation then fades — ideal for transition punctuation or vintage aesthetics.
Burn intensity, color warmth, and timing are configurable. The semi-transparent overlay composites on top of any scene content. Use between scenes or layered over footage for an organic, analog-film feel.