A ball bounces on a hard floor, each impact softer and closer together than the last, until the ball settles to silence.
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
- a ball
- a hard floor
Event: a ball bounces on a hard floor
Audio presence
- a ball
Sound: ball impact on floor
Key standards
Visual physical commonsense (V-PC)
- Each successive bounce reaches a lower peak than the previous bounce, the intervals between bounces shorten, and the ball comes to rest on the floor.
- Only a single ball is present throughout the clip and it does not teleport, multiply, or phase through the floor.
Audio physical commonsense (A-PC)
- Successive impact sounds arrive closer together in time and the sequence ends in silence before the clip ends.
- Each successive impact sound is softer than the previous impact.
Cross-modal physical commonsense (AV-PC)
- Each audible impact coincides temporally with a visible contact between the ball and the floor.