仅限 Grok Build 使用。将 2D 角色静态图转化为流畅动画精灵，通过图像生成/编辑 → 图像转视频 (6s/10s 原地循环) → ffmpeg 抽帧 → magenta 色键抠图 → 密集采样精灵条/网格/GIF。
此技能专为 Grok Build 平台设计，利用其独有的 `image_to_video` 能力，将一张 2D 角色静态图转化为平滑的动画精灵。工作流程包括：先通过图像生成或编辑获得干净的角色图，然后生成 6 秒或 10 秒的原地奔跑循环视频，接着使用 ffmpeg 从视频中抽取密集帧，最后借助 magenta 库进行色键抠图，输出精灵条、精灵网格或 GIF 动画。这使得开发者能够从视频中提取动作数据，生成更自然的奔跑/行走循环动画。注意：该技能不适用于 Codex 或 Claude，因为只有 Grok Build 支持图像转视频。如果用户只需干净像素画板，建议使用 `generate2dsprite`。
npx skills add https://github.com/0x0funky/agent-sprite-forge/tree/main/skills/video2dsprite仅限 Grok Build 使用。将 2D 角色静态图转化为流畅动画精灵，通过 image_gen/image_edit 基础 → image_to_video（6秒/10秒原地循环）→ ffmpeg 抽帧 → magenta 色键抠图 → 密集采样精灵条/网格/GIF。
当用户需要视频转精灵、从生成视频中进行动作捕捉、通过密集帧获得更平滑的奔跑/行走循环，或执行 /video2dsprite 命令时使用。
不要在 Codex 或 Claude 上使用——只有 Grok Build 拥有 image_to_video。
对于不含视频的清晰像素画板，优先使用 generate2dsprite。
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