← all videos

Rain pours onto a metal roof with loud sharp pattering. The scene cuts to the same rain on a thick thatched roof, barely audible from below.

C2-1-41 Event Transition · source_body principle: Material Comparison (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

  • rain
  • a metal roof
  • a thatched roof

Event: rain falls on a roof

Audio presence

  • rain

Sound: rain on a roof

Key standards

Visual physical commonsense (V-PC)

  • Both a metal roof scene and a thatched roof scene are visibly present with rainfall on each, with rain droplets following plausible downward trajectories.

Audio physical commonsense (A-PC)

  • The metal-roof rain has loud sharp pattering and the thatched-roof rain is distinctly quieter and barely audible.

Cross-modal physical commonsense (AV-PC)

  • The rain-sound character corresponds to the visible roof material shown in each scene.
  • The loud sharp pattering corresponds to the rain falling on the metal roof.
  • The quieter, barely-audible rain corresponds to the rain falling on the thatched roof.