H3 Video Generation Test: Why Does Character Control in Complex Scenes Rely on Luck?
Hdfjds · reddit · 2026-08-23
The author shares their experience using the H3 model for complex video generation, highlighting the difficulty of maintaining consistency and control.
Test Scenario:
Attempting to generate a scene with a 3D kitchen background and three specific characters, with precise control over each character's actions.
Issues Encountered:
- High Randomness: Six runs produced completely different results.
- Uncontrollable Actions: Characters might enter from the wrong location or perform unrequested extra actions.
- Seed Dependency: Changing only the seed (with the same prompt) leads to vastly different outputs.
Reflection:
The author feels that generation currently relies mostly on "luck" rather than precise control. They ask the community how they cope: is it by iteratively tweaking prompts, generating large volumes to select the best, or accepting imperfect results? This reflects the current technical bottleneck of video models in complex narrative and precise control.
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