README.md

metadata

license: apache-2.0
language:
  - en

FastvideoWorldModel-MC

This dataset contains short Minecraft (MineDojo) episodes. Each episode is a folder with a video and optional JSON action annotations.

File layout

<dataset_root>/
  episode_<timestamp_utc>_w<worker_id>_<episode_index>_<run_name>/
    manifest.json
    video.mp4
    mg/
      mg_actions.json
    data.npz            # optional (advanced users)

video.mp4

• H.264 (libx264)
• FPS and resolution are recorded in manifest.json (fps, image_size_hw where image_size_hw = [H, W])
• The video has 96 frames

mg/mg_actions.json

Per-frame action annotations (one entry per timestep).

Format:

• Top-level: JSON object (dict)
• Keys: "0" ... "T-1" (string timestep)
• Value per timestep:
  • action: List[int] (raw MineDojo MultiDiscrete action vector)
  • move_action: str in { "", "W", "A", "S", "D", "WA", "WD", "SA", "SD" }
  • view_action: str in { "", "up", "down", "left", "right", "up_left", "up_right", "down_left", "down_right" }

Notes:

• view_action is derived from the per-frame yaw/pitch delta.
• Convention: dyaw > 0 => right; dpitch > 0 => down (common Minecraft convention).

Advanced (Pro): data.npz (optional)

Some episodes also include data.npz (created with numpy.savez_compressed). It contains per-frame aligned numpy arrays.

Keys (all aligned to the video frames; typically T = 96):

• actions: int64, shape (T, D)
  • raw MineDojo MultiDiscrete action vector per frame
  • D matches len(manifest["action_nvec"])
• positions: float32 (sometimes float64), shape (T, 3)
  • Minecraft world position (x, y, z)
• yaws: float32 (sometimes float64), shape (T,)
  • camera yaw in degrees
• pitches: float32 (sometimes float64), shape (T,)
  • camera pitch in degrees

If you only need video + mg_actions.json, you can ignore data.npz.