Canvas Timeline Seedance Video Prompt
This project-local skill adapts the external seedance-prompt-zh guide for Canvas Timeline's API-based generation path.
Core rule
不要原样照搬 @图片1 / @视频1 / @音频1 as if Canvas were the Jimeng web UI. Canvas sends media through Ark/Seedance API content parts, so prompts must describe the reference roles in natural language and keep the actual media routing in code.
Inputs
StoryboardRow: visual_description, storyboard_prompts, motion_prompts, character_actions, performance/emotion fields, dialogue, sound_effects, bgm.- Keyframe image: treated as 首帧 / first-frame composition anchor.
- Optional clean keyframe + storyboard grid: clean image is the visual anchor; grid is only director timing/blocking guidance.
- Context refs: 角色参考, 场景参考, 道具参考 from row slots or upstream canvas nodes.
- Global style / art direction node.
Output contract
A Canvas Seedance prompt should contain:
【Seedance 2.0 视频生成指令】 with shot id and duration.【参考素材用途】 mapping references to roles:
- 首帧: keyframe/image1 locks opening composition, character identity, costume, scene, lighting.
- 角色参考: character slot descriptions or approved avatar refs.
- 场景参考: scene slot/upstream scene description.
- 道具参考: prop slot/upstream prop description.
【主体 / 场景 / 风格】 from row description and global style.【表演与情绪】 grounded in visible performance: eyes, breath, hands, posture, gait rhythm.【分时段动作与运镜】; for clips over 8 seconds, use time segments.【导演分镜格信息】 when a multi-panel storyboard grid exists.【声音设计】 for dialogue, diegetic SFX, and explicit music/BGM constraints.【一致性约束】 preserving identity, costume, scene, lighting, and motion direction.
Multi-panel storyboard rule
If the reference image is a multi-panel director storyboard sheet/grid, explicitly say:
- Read the panels in order as motion, emotion, blocking, and camera progression.
- Do not render panel borders, arrows, captions, timecodes, UI, or grid layout.
- 不要理解为最终视频的分屏画面 / not a literal split-screen.
Duration and complexity
Seedance 2.0 supports roughly 4–15 秒 output. Canvas currently clamps Beat Video duration to 5–15 seconds. Match prompt complexity to duration: do not stuff four locations into a 5-second shot unless the desired result is chaos wearing a hat.
Media routing discipline
Default Beat Video should send the keyframe as the primary image reference and carry character/scene/prop information in text. Only use extra image references through an explicit, validated reference-pack mode; reject bad URLs, relative paths, stale node markers, malformed base64, and SVG data URLs before Seedance submission.
1---2name: canvas-seedance-video-prompt3description: Convert Canvas Timeline storyboard rows, keyframes, and upstream references into Seedance 2.0 / Ark video prompts. Use for Beat Video, cinematographer-agent, or Director Assistant video prompt generation.4---56# Canvas Timeline Seedance Video Prompt78This project-local skill adapts the external `seedance-prompt-zh` guide for Canvas Timeline's API-based generation path.910## Core rule1112不要原样照搬 @图片1 / @视频1 / @音频1 as if Canvas were the Jimeng web UI. Canvas sends media through Ark/Seedance API content parts, so prompts must describe the reference roles in natural language and keep the actual media routing in code.1314## Inputs1516- `StoryboardRow`: `visual_description`, `storyboard_prompts`, `motion_prompts`, `character_actions`, performance/emotion fields, `dialogue`, `sound_effects`, `bgm`.17- Keyframe image: treated as 首帧 / first-frame composition anchor.18- Optional clean keyframe + storyboard grid: clean image is the visual anchor; grid is only director timing/blocking guidance.19- Context refs: 角色参考, 场景参考, 道具参考 from row slots or upstream canvas nodes.20- Global style / art direction node.2122## Output contract2324A Canvas Seedance prompt should contain:25261. `【Seedance 2.0 视频生成指令】` with shot id and duration.272. `【参考素材用途】` mapping references to roles:28 - 首帧: keyframe/image1 locks opening composition, character identity, costume, scene, lighting.29 - 角色参考: character slot descriptions or approved avatar refs.30 - 场景参考: scene slot/upstream scene description.31 - 道具参考: prop slot/upstream prop description.323. `【主体 / 场景 / 风格】` from row description and global style.334. `【表演与情绪】` grounded in visible performance: eyes, breath, hands, posture, gait rhythm.345. `【分时段动作与运镜】`; for clips over 8 seconds, use time segments.356. `【导演分镜格信息】` when a multi-panel storyboard grid exists.367. `【声音设计】` for dialogue, diegetic SFX, and explicit music/BGM constraints.378. `【一致性约束】` preserving identity, costume, scene, lighting, and motion direction.3839## Multi-panel storyboard rule4041If the reference image is a multi-panel director storyboard sheet/grid, explicitly say:4243- Read the panels in order as motion, emotion, blocking, and camera progression.44- Do not render panel borders, arrows, captions, timecodes, UI, or grid layout.45- 不要理解为最终视频的分屏画面 / not a literal split-screen.4647## Duration and complexity4849Seedance 2.0 supports roughly 4–15 秒 output. Canvas currently clamps Beat Video duration to 5–15 seconds. Match prompt complexity to duration: do not stuff four locations into a 5-second shot unless the desired result is chaos wearing a hat.5051## Media routing discipline5253Default Beat Video should send the keyframe as the primary image reference and carry character/scene/prop information in text. Only use extra image references through an explicit, validated reference-pack mode; reject bad URLs, relative paths, stale node markers, malformed base64, and SVG data URLs before Seedance submission.
storyverse2025