Add Chris custom MiniMax H3 extender workflow

2026-08-15 09:38:37 +00:00
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+# MiniMax H3 Extender Working
+
+## Summary
+
+Chris's current working `MiniMax-H3` extension workflow for continuing an imported video with reference-driven follow-on scenes, review checkpoints, and recovery / re-assembly support.
+
+## Owner
+
+- `Chris`
+
+## Status
+
+- `working-custom`
+
+## Source
+
+- Personal workflow supplied by Chris via Discord attachment
+- Imported into repo: `2026-08-15`
+
+## What this workflow is
+
+- Starts from an imported source video and audio pair
+- Builds imported-video context for `H3` continuation rather than starting from a clean prompt-only clip
+- Uses a plan-driven extension loop for multiple follow-on scenes
+- Supports scene + character reference images, including a third character lane
+- Includes a review gate and checkpoint save after each generated scene
+- Includes muted-by-default recovery nodes for re-assembling a finished extension without re-rendering
+
+## Key working settings captured from the graph
+
+- Input video placeholder: `1.mp4`
+- Input audio placeholder: `リアルもエーアイもこんなんばっか(ソウル).wav`
+- Source timeline basis: `24 fps`
+- Base scene resolution node: `1152x640`
+- Main loop `H3 REF2VA` node resolution: `864x480`
+- Clip length on the H3 generation nodes: `124` frames
+- Steps constant: `8`
+- `Boolean - Distilled`: `true`
+- `Boolean 2 Pass`: `false`
+- `HIGH QUALITY`: `false`
+- Optional RTX VSR upscale branches are present but disabled behind switches
+- Primary preview / loader override references `taeh3.safetensors`
+
+## Reference structure in this graph
+
+- `Picture 1`: environment / master scene
+- `Picture 2-3`: Bill body + face
+- `Picture 4-5`: Nancy body + face
+- `Picture 6-7`: Becca body + face
+- Imported source video and its audio are also fed back in as continuity references
+
+## Notable workflow sections
+
+- Imported media ingest via `LoadVideoUI` and `LoadAudioUI`
+- Shared set/get lanes for `CLIP`, `VAE_Vid`, `VAE_Audio`, prompt, dimensions, and media assets
+- Initial `MiniMaxH3ReferenceToVideo` block for reference-to-video generation from scene and character stills
+- `MiniMaxH3ChainPlan` plus `MiniMaxH3ChainLoopStart` / `Current` / `Context` / `LoopEnd`
+- `MiniMaxH3ChainReview` gate set to checkpointed review before continuing
+- `MiniMaxH3ChainSegmentSave` for resume checkpoints
+- `MiniMaxH3ChainManifestLoad` and alternate `MiniMaxH3ChainAssemble` for recovery / assemble-later flow
+
+## Embedded project assumptions
+
+- The prompt text is authored around named characters `Bill`, `Nancy`, and `Becca`
+- The embedded example dialogue and action are tailored to a specific rooftop / shop continuation scene
+- The graph expects local reference image filenames such as `Scn037.png`, `Char256_Turnaround.png`, `Char093_Headshots.png`, and related assets
+
+## Why this lives under `custom/`
+
+- This is not an untouched external import
+- This is not yet a cleaned general-purpose master
+- The graph contains Chris-specific prompt language, asset names, and workflow assumptions that are worth preserving exactly as a working baseline
+
+## Likely required custom nodes
+
+- `kijai/ComfyUI-KJNodes`
+- `ethanfel/ComfyUI-MiniMaxH3-Contex-Loop`
+- `WhatDreamsCost-ComfyUI`
+- `DumasNodes.git`
+- `comfyui-kjnodes`
+- `comfyui_fearnworksnodes`
+
+## Notes for future cleanup
+
+- A future generalized version could move into `optimized/image-to-video/` after stripping Chris-specific prompts, filenames, and scene assumptions
+- If this evolves further, keep the raw working graph here and promote only a cleaned derivative to the optimized layer