Minimax H3 Ref2V Quality Issues: Parameter Tuning and Discussion
ShengrenR · reddit · 2026-08-06
The author discusses the quality degradation issues encountered when using Minimax H3's reference image workflows. While standard Image-to-Video (I2V) performs clearly, some reference generations suffer severe degradation resembling wrong VAE usage or JPEG artifacts.
The author found that changing the refimagesize parameter from 'match' to 'max' significantly improves clarity, albeit at a massive cost to generation time. Additionally, using the int8convrot workflow yields crisper I2V gens but sacrifices overall control and reference audio. The author calls on the community to share experiences regarding reference image sizing and trimming.
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