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A person walks on dry concrete with steady taps. Then steps into a shallow puddle, and the footsteps turn into wet splashes with sloshing and dripping.

C2-1-34 Event Transition · source_body principle: Material Comparison (Material)
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Per-prompt rubric

Basic standards

Visual presence

  • a person
  • dry concrete
  • a shallow puddle

Event: a person walks across a surface

Audio presence

  • footsteps

Sound: footstep impacts

Key standards

Visual physical commonsense (V-PC)

  • The person walks with a natural gait on both a dry concrete surface and a shallow puddle, with visible water splashing when stepping into the puddle.

Audio physical commonsense (A-PC)

  • The concrete footsteps have steady dry hard taps and the puddle footsteps have distinctly wet splashes with sloshing.

Cross-modal physical commonsense (AV-PC)

  • Each footstep sound coincides in time with a visible foot landing on its corresponding surface.
  • The dry hard taps correspond to footsteps on the concrete surface.
  • The wet splashes with sloshing correspond to footsteps in the puddle.