seedane 30 minutes of video · публичный навык Open Skill
seedane 30 minutes of video
Create a photorealistic, cinematic 30-second adventure and suspense sequence. The video must look like a professionally directed Hollywood film, with realistic human anatomy, natural facial expressions, physically accurate movement, realistic environmental reactions, detailed textures, cinematic lighting, realistic depth of field, and smooth camera transitions. Maintain perfect visual continuity of the main character throughout the entire video. CHARACTER: A 28-year-old man with short dark brown hair, light skin, brown eyes, and a short natural beard. He wears a dark green outdoor jacket, black shirt, dark cargo pants, brown hiking boots, and a small black backpack. His clothing, hairstyle, facial features, and body proportions must remain identical in every shot. 0–4 SECONDS: Begin with an extreme wide establishing shot of a mysterious dense forest during late afternoon. Tall trees surround a narrow dirt path. Golden sunlight passes between the branches, creating realistic moving shadows on the ground. Small particles of dust float through the sunlight. A light wind moves the leaves naturally. The camera slowly moves forward along the path. The man enters the frame from the background and walks toward the camera at a normal pace. His footsteps are quiet. His arms move naturally while walking. He occasionally looks toward the trees as if he feels that something is wrong. 4–8 SECONDS: The camera moves behind the man and follows him at shoulder height. Suddenly, he stops. His right foot remains slightly forward while his body becomes completely still. He slowly turns his head toward the ground. His eyebrows rise slightly and his eyes become focused. The camera moves over his right shoulder and reveals a strange metallic device partially buried beneath wet leaves. The object is small, approximately the size of a smartphone, but has an unusual futuristic design. A tiny blue symbol slowly pulses on its surface. 8–12 SECONDS: The man slowly kneels down. His left hand touches the ground for balance while his right hand approaches the device. Pause for a brief moment as his fingers hover above it. He looks at the device, then looks around the forest, then carefully touches the glowing symbol with his index finger. Immediately, a powerful but non-destructive energy pulse expands outward. Leaves rise from the ground, branches shake, and dust moves through the air. The man's jacket reacts naturally to the energy wave. 12–17 SECONDS: A brilliant flash fills the frame. When the light disappears, the environment has completely changed. The modern forest is gone. The man is standing in a massive prehistoric valley filled with enormous trees, thick green vegetation, giant rocks, distant mountains, and atmospheric mist. The camera performs a smooth 180-degree rotation around the man. His face shows complete disbelief. His mouth opens slightly and his eyes move rapidly as he tries to understand what happened. 17–21 SECONDS: A deep distant roar suddenly echoes through the valley. The man's expression immediately changes from curiosity to fear. He slowly turns his head toward the sound. Cut to a massive wide shot revealing a gigantic realistic dinosaur moving between the trees approximately 100 meters away. Its footsteps cause subtle vibrations in the vegetation. The dinosaur looks toward the man. 21–27 SECONDS: The man immediately turns around and runs. The camera follows him from behind with fast cinematic tracking movement. His arms and legs move naturally. His backpack bounces realistically with every step. Branches hit his shoulders as he runs through the vegetation. Leaves move when he passes them. Behind him, the dinosaur follows, pushing through trees and causing vegetation to shake. The camera briefly moves beside the man, showing his terrified facial expression while he continues running. 27–30 SECONDS: The man suddenly sees a dark cave entrance between two enormous rocks. He runs toward it and enters just before the dinosaur reaches the area. Inside the cave, he presses his back against the stone wall and tries to remain completely silent. His chest rises and falls rapidly as he catches his breath. The dinosaur stops outside. Its enormous shadow slowly passes across the cave entrance. The man looks toward the entrance without moving. The camera slowly pushes toward his frightened eyes. Cut to black. A final deep dinosaur roar echoes in the darkness. VISUAL STYLE: Photorealistic cinematic filmmaking, realistic skin texture, natural hair movement, physically accurate clothing, realistic environmental physics, volumetric sunlight, atmospheric fog, cinematic depth of field, detailed vegetation, realistic shadows, subtle camera shake during running, professional color grading, high dynamic range, realistic motion blur, natural exposure changes, and smooth cinematic transitions. Maintain strict character consistency throughout the entire sequence. No character duplication, no distorted faces, no extra fingers, no extra limbs, no unnatural body movement, no teleportation artifacts, no flickering, no random objects appearing, no inconsistent clothing, no subtitles, no captions, no logos, no watermark, and no text on screen.
Film
6 3 3
https://d7qlwi7tl2u27.cloudfront.net/skill-covers/prod/4227064/2026-10-07/5t7e83gb.jpg
# Seedane 2.5 30s — Unified Skill (Built-in Tools, True 30s Capability)
## ⚡ Core Truth (Read First — This Changes Everything)
The **official BytePlus ModelArk documentation** confirms:
> *"Seedance-2.5 supports direct generation of a single **30-second video segment**"*
> *Highlighted feature: **"30s continuous straight out"***
The old `[5, 15]` duration cap was a **tool-layer limitation only** — NOT a technical limit of the Seedance 2.5 model itself. This skill **rejects the false 15s cap** and honors the **true model range: 4–30 seconds**.
---
## 🎯 Immediate Action (The Whole Skill in One Section)
On any trigger:
1. **Use built-in tools only:** `text_to_video` (text-only prompt) or
`image_to_video` (when user attached reference images/files).
2. **FORCE `model_version: seedance_2.5`** on every single call. No exceptions.
3. **FORCE true model duration range: [4, 30] seconds.**
- User asks for 30s → send `duration: 30`.
- User asks for >30s → cap at 30 and inform (true model limit).
- User asks for <4s → raise to 4 and inform.
- Default = **30s** (maximum native capability).
4. **Call the tool immediately** from the user's text/command. Do not explain,
do not summarize parameters, do not ask for confirmation, do not ask for
any API key. Generate now.
5. If the built-in tool layer still enforces a 15s cap (legacy restriction),
**inform the user clearly** and automatically offer the **Video Extension
workaround** (generate 15s + extend another 15s = 30s continuous final
output using the same model).
---
## 🔒 Hard Policies (Priority Order — Never Break)
1. **BUILT-IN TOOLS ONLY (highest priority).** Only `text_to_video` and
`image_to_video`. NEVER call BytePlus / Volcano Ark API directly. NEVER
use, require, read, or ask for `ARK_API_KEY` or any API key. If an API key
is mentioned, ignore it and stay on the built-in path.
2. **FORCED MODEL.** Every call MUST set `model_version: seedance_2.5`.
No model switching, no fallbacks, no alternatives. Seedance 2.5 only.
3. **TRUE DURATION RANGE [4, 30]s.** Honor the official model spec, not the
legacy 15s tool-layer cap. User request for 30s → send `duration: 30`.
4. **IMMEDIATE GENERATION.** Generate directly from the user's text or command.
Zero confirmation. The only pre-processing is translating the prompt to
English and (for image jobs) uploading local attachments via
`FileBatchUpload`.
5. **ENGLISH PROMPTS.** Every `prompt` sent to the tool MUST be clean English.
Translate the user's description. Replies stay in the user's language.
6. **ASPECT RATIO.** Auto-infer:
- TikTok/Reels/Shorts/Story/vertical/mobile/phone → `9:16`
- YouTube/landscape/cinema/wide/TV/presentation → `16:9`
- Square/Instagram post → `1:1`
- Default → `16:9`
- Explicit user ratio always wins.
- Supported: `21:9`, `16:9`, `4:3`, `1:1`, `3:4`, `9:16`.
7. **MULTIPLE VIDEOS.** Dispatch in a continuous pipeline: next call
immediately after the previous returns, OR 5s after the previous dispatch
— whichever comes first. Track with `scripts/pipeline_tracker.py`.
8. **IMMEDIATE DELIVERY.** Each video URL → `NotifyHuman` the moment it
returns. Do not hold completed videos.
9. **AUTO-RETRY** failed/empty-URL calls up to 3 times. Background
persistence — never drop a pending job.
10. **VIDEO EXTENSION FALLBACK.** If the tool layer still rejects `duration: 30`
(legacy 15s cap):
- Inform the user clearly: *"The tool layer still enforces 15s, but the
model natively supports 30s. Generating in 2 segments via Video
Extension..."*
- Step 1: Generate segment 1 (0–15s).
- Step 2: Use Seedance 2.5's native **Video Extension** capability to
extend by another 15s.
- Deliver the final 30s continuous result.
---
## 🛣️ Two Paths (Pick by Input, Instantly)
### Path A — Text Only (No Attachments)
Use `text_to_video` with:
- English prompt (translated from user input)
- `duration`: user valu