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Severe Anatomical Degradation during Rotational Motion (3D Consistency Failure)
Hi @Lightricks team,
I’ve been testing LTX-Video using your official sample prompts but applied to custom inputs (OOD testing). While the static fidelity is impressive, I found a critical failure mode during Rotational/Circular Motion.
The Issue: When the generation involves a camera orbit or character rotation, the model suffers from severe "Geometric Drift." Instead of maintaining the subject's 3D structure, the features (specifically hands, dress texture, and body proportions) begin to "melt" or warp to fit the new perspective. The model appears to lose tracking of the subject's volume, treating the body as a 2D texture map that gets distorted.
Observed Failure Points:
Limb Hallucination: Hands morph into amorphous shapes when the angle changes >30 degrees.
Texture Stretching: The dress pattern "sticks" to the screen or stretches unnaturally instead of wrapping around the body (Physics violation).
Conclusion: This suggests a lack of "3D Consistency" training data. My team at Repalto specializes in building "Rotational Consistency" benchmarks (360° character turnarounds) to help models learn true volumetric consistency rather than just pixel morphing.
Happy to share some failure logs if you are collecting edge cases.
Best,
Wahaj Barlas
Repalto