104 lines
4.1 KiB
Markdown
104 lines
4.1 KiB
Markdown
# MiniMax H3 R2V Master
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## Summary
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Best-current `MiniMax H3` reference-first generation master for Chris's actual
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priority: `reference-to-video` first, not generic `t2v`. This maintained
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version now promotes the quality features from the Chris working graph:
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second-pass enhancement enabled, `RTXVideoSuperResolution` enabled, and the
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non-Heretic `AWQ` text-encoder path.
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## Status
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- `best-current-r2v-master`
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## Workflow asset
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- `workflow.json`
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- `api-prompt.json`
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- `prompt-guide.md`
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- `prompt-template.md`
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- `references/default-character-reference.jpg`
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- `references/default-location-reference.jpg`
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- `references/default-location-reference.url`
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## This pass
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- Promoted the Chris working quality lane into the maintained master.
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- Enabled the built-in `2 Pass` path.
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- Enabled the built-in `HIGH QUALITY` path so `RTXVideoSuperResolution` runs.
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- Swapped away from the Heretic text encoder to the `AWQ` MiniMax encoder path.
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- Kept the prompt structure generic and reusable for the single-clip `ref2v` lane.
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## Built from
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- `custom/chris/minimax-h3-extender-working/`
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- current MiniMax Ref2VA prompt guidance in `optimized/notes/minimax-h3-ref2va-prompt-guidelines.md`
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- local MiniMax continuation lessons gathered from earlier optimized `ref2v` and `Contex Loop` experiments
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- official MiniMax H3 docs for prompt relationships, role labels, and limits
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## Key model stack
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- `minimax_h3_ref2va_pruned_int8_convrot.safetensors`
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- `qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors`
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- `minimax_h3_video_vae_int8_convrot.safetensors`
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- `minimax_h3_audio_vae_fp32.safetensors`
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- `minimax\minimax_h3_ref2v_turbo_4step_v0.1_comfyui_bf16.safetensors`
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## Main changes
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- keeps the safer `864x480` working canvas for the main `ref2v` lane
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- uses the `AWQ` MiniMax text encoder instead of the Heretic path
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- enables the graph's `2 Pass` lane
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- enables the graph's `HIGH QUALITY` lane so `RTXVideoSuperResolution` runs
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- sets the RTX upscale multiplier to `2x`
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- keeps `Sol Attn` enabled in the promoted working graph
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- keeps generic reusable prompt text in the single-clip lane
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- replaces the old Chris-specific continuation plan with a generic three-shot starter
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## Current working settings
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- main `ref2v` resolution: `864x480`
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- source timeline basis: `24 fps`
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- main scheduler lane: `simple`
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- standard sampler option present: `euler_ancestral`
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- high-quality sampler option present: `euler_ancestral_cfg_pp`
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- second-pass denoise in the promoted working graph: `0.4`
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- starter continuation plan defaults: `10s` clips, `8` plan steps
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- RTX upscale: `2x`, `ULTRA`
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## API submission
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- `workflow.json` is the maintained front-end graph and still includes helper
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nodes that ComfyUI rejects when you post the raw graph directly to `/prompt`.
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- `api-prompt.json` is the server-safe prompt-style export for direct API
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submission.
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- `scripts/queue-minimax-r2v-duration-sweep.mjs` uploads the bundled scene +
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character refs and queues the `2s/5s/8s/12s/15s/17s/20s` duration sweep with
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first-pass steps set to `8` by default.
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## When to use this
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- use this first when the goal is: keep one or more reference images stable and
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generate a higher-quality `MiniMax H3` `ref2v` clip with the current quality
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passes enabled
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- use `optimized/image-to-video/minimax-h3-extension-master/`
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instead when the main job is extending an already existing source video
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rather than generating a new reference-driven chain
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## Notes
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- This master is now heavier than the older lightweight `w4a8` / Heretic lane.
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- It is the quality-biased `ref2v` path, not the cheapest local-safe path.
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- The graph still carries extra continuation machinery from the promoted Chris
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working workflow, but the maintained `ref2v` lane is the generic single-clip
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starter built around the reusable prompt block and quality passes.
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- Use `prompt-guide.md` for the short authoring rules and `prompt-template.md`
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for a copy-ready starter block that matches this maintained workflow.
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- Default bundled `<Picture 1>` scene reference:
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`references/default-location-reference.jpg`
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- Source URL preserved for the scene reference:
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`references/default-location-reference.url`
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- Default bundled Subject 1 character reference:
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`references/default-character-reference.jpg`
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