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An axe splits a log with a deep satisfying crack. The wood fibers separate with a warm thunking sound.

C1-1-09 Steady State · source_material principle: Wood sounds (Material)
Seedance 2.0ByteDance · proprietary
Kling 3.0 OmniKuaishou · proprietary
Veo 3.1Google · proprietary
LTX-2.3Lightricks · open
Ovi 1.1character.ai · open
JavisDiT++JavisDiT · open
MagiHumanGAIR-NLP · open
Per-prompt rubric

Basic standards

Visual presence

  • an axe
  • a log

Event: an axe strikes and splits a log

Audio presence

  • an axe
  • a log

Sound: axe splitting a log

Key standards

Visual physical commonsense (V-PC)

  • The axe swings, strikes, and splits the log with continuous motion, and the log separates along its length parallel to the grain.

Audio physical commonsense (A-PC)

  • The impact has a deep warm woody timbre with a fibrous cracking tail.

Cross-modal physical commonsense (AV-PC)

  • The cracking sound onset aligns in time with the visible moment the axe strikes the log.
  • The count of audible strikes matches the count of visible strikes.