A full-frame rainfall effect composed of many small, uniform water streams falling vertically as if dripping from a roof edge, instantly filling the entire screen from the very first frame. Each stream is relatively small and consistent in thickness, with subtle natural variation but maintaining an overall similar size across the frame. The motion is continuous and already fully established at the start, with no buildup or initial dripping phase. The flow appears as countless fine water lines and micro-streams, closely spaced to create a dense curtain-like rainfall. Slight irregularities in spacing and timing prevent uniformity, creating a natural but controlled chaotic pattern. Occasional micro-droplet breakaways and soft splashes occur within the flow, adding realism without disrupting the consistent stream size. The background is pure black, with high contrast lighting that enhances the clarity and translucency of each stream. No visible roof or source, only the implied origin from the top edge. No fade-in, no transition — the rain is already fully active and filling the frame. Ultra-detailed, cinematic, non-repetitive, no symmetry, no looping.