Seedance 2.5 烟花在祭典上空绽放 旅行提示词

Create one continuous 15-second video in 16:9. Use the provided storyboard and festival reference images as visual guidance. The entire video must feel like ONE continuous real-life smartphone recording captured by a person attending a Japanese summer festival at night. Ultra-high-definition 4K photorealistic live-action footage with premium cinematic image quality, crisp natural details, high dynamic range, rich color depth, clean professional nighttime exposure, and realistic fine textures. The video should feel immersive, spontaneous, emotional, and believable, like an unexpectedly beautiful viral moment captured during a real local Japanese summer festival. Do not treat the storyboard panels as separate unrelated shots. Maintain strong spatial continuity, camera continuity, lighting continuity, and environmental consistency throughout the full 15-second sequence. The same festival location, same riverside, same crowd atmosphere, same night, same lighting, and same visual world must remain consistent. 0:00–0:02 — Walking through the summer festival Begin in first-person POV, naturally walking forward through a lively Japanese summer festival street. Use the provided festival reference image for the overall composition and atmosphere. On the left is a realistic yakisoba stall with a large hot metal griddle, noodles, cooking tools, rising steam, warm lighting, and vendors preparing food. On the right is a traditional Japanese goldfish scooping stall with a shallow blue water tank, many small orange goldfish, paper scoops, subtle water reflections, and festival visitors enjoying the game. Warm paper lanterns hang above the street. Many Japanese festival visitors naturally walk through the center of the frame, some wearing yukata and others wearing casual summer clothes. The camera moves gently up and down with realistic human footsteps. Natural handheld smartphone motion. No visible hands or arms in front of the camera. The image should be extremely clean and detailed. Clearly preserve: lantern paper texture, stall fabric texture, food surface detail, steam, goldfish, water reflections, yukata fabric, hair, skin, pavement texture, and background lights. The atmosphere is warm, busy, nostalgic, immersive, and realistic. 0:02–0:03 — The firework launch sound begins Continue walking through EXACTLY the same festival street. Do not cut. Do not change the stall arrangement. A distant firework launch sound begins: “whoooooosh…” The camera movement naturally slows slightly as the person notices the sound. The person has not yet fully turned toward the river. The yakisoba stall remains on the left. The goldfish scooping stall remains on the right. The crowd continues moving naturally. Build curiosity and anticipation. The sound indicates that a firework has already been launched somewhere behind or beside the viewer. 0:03–0:04 — Smoothly turn toward the firework Without cutting, smoothly turn the camera toward the direction of the firework sound. The movement must be one continuous and physically believable human reaction. Use a quick but controlled handheld pan. Avoid excessive motion blur. As the camera turns away from the stalls, gradually reveal: the edge of the festival crowd, the riverside, the distant city skyline, and the open dark night sky. The SAME firework is already visible in mid-flight, rising upward. Do not begin a new firework. Do not reset the firework. Do not make it suddenly appear at the bottom of the frame. The glowing shell should already be clearly above the launch point when the camera finishes turning. Crowd silhouettes remain naturally visible near the bottom of the frame. 0:04–0:07 — Follow the same firework upward Continue following the exact SAME firework. The camera naturally tilts upward while tracking it. The firework rises steadily higher into the night sky. It leaves one continuous golden-orange glowing trail with realistic fine sparks and a thin smoke trail. The trajectory must remain completely consistent. The same light source must remain visible throughout. Do not create another firework. Do not restart the launch animation. Do not suddenly change its direction. The camera keeps the firework close to the center of the frame. The upward tracking motion should remain smooth and realistic. The night sky should remain deep and clean, with detailed shadows and minimal image noise. Do not crush the blacks. Preserve subtle city lights and crowd silhouettes near the bottom of the frame. Build suspense. The viewer should feel: “What is this firework going to become?” 0:07–0:08 — The firework starts to burst The same firework reaches its highest point. Create a very short pause before the explosion. Then: BANG! The shell begins exploding outward. It initially opens into a realistic golden chrysanthemum-style firework. The explosion grows naturally from the center outward. Use physically realistic luminous particles, fine glowing trails, smoke, and sparks. The brightness should be powerful but well controlled. Do not completely blow out the highlights. Preserve detailed spark structure even in the brightest parts. The camera reacts with only a subtle natural handheld shake. Do not cut. 0:08–0:10 — Giant rainbow chrysanthemum firework The SAME golden firework naturally transforms into a huge rainbow-colored chrysanthemum firework. It continues expanding outward into a nearly perfect large circular bloom. Use vivid but believable colors: red, orange, yellow, green, cyan, blue, purple. The colors should remain richly separated and clearly visible without looking artificial. The firework fills a large portion of the night sky. This is the visual and emotional climax of the video. Make the firework feel massive, breathtaking, elegant, and realistic. Render extremely fine individual firework particles. Each glowing trail should have delicate sparkling detail. Preserve: particle separation, small glowing fragments, smoke texture, subtle color gradients, and realistic fading brightness. Do NOT form words. Do NOT form Japanese characters. Do NOT form symbols. Do NOT form logos. This must remain a pure, giant, realistic rainbow chrysanthemum firework. Hold the camera almost still for a brief moment so the viewer can fully appreciate the firework. 0:10–0:12 — Enjoy the afterglow The rainbow firework gradually fades. The colored trails break into hundreds of small glowing embers. Individual sparks slowly fall downward under gravity. Realistic smoke gently spreads across the dark sky. The city skyline and crowd silhouettes remain subtly visible near the bottom of the frame. The camera stays mostly still. Create a quiet emotional pause after the visual climax. Preserve fine detail in the fading sparks and smoke. Avoid muddy black areas. Avoid excessive noise. Avoid oversharpening. Do not immediately cut back to the festival. The audience should have time to enjoy the余韻. 0:12–0:15 — Smoothly return to the festival street While the last firework sparks are still fading, slowly tilt the camera downward. This must be a continuous physical camera movement. No hard cut. No teleportation. As the camera tilts down: first reveal the tops of the crowd, then more people, then warm lantern light, then the festival stalls. Gradually return to the exact SAME festival street from the beginning. The yakisoba stall is again on the left. The goldfish scooping stall is again on the right. Maintain the same general crowd density, stall arrangement, warm lighting, and festival atmosphere. The person naturally begins walking forward again. The lanterns glow warmly without clipping. The goldfish water tank reflects the lantern light. Steam from the yakisoba stall softly catches the warm lighting. The ending should f