Hermes Nodes

Hermes Nodes

Custom nodes for ComfyUI: WAN 2.2 dual-model (HIGH/LOW noise) LoRA loading and sampling, image prep helpers, and in-graph video preview/compare.

Feature requests and bug reports are welcome - please open an issue on GitHub.

Installation

• ComfyUI Manager / Registry: search for "Hermes Nodes".
• Manual: clone into ComfyUI/custom_nodes and restart ComfyUI:

  git clone https://github.com/Lannister34/ComfyUI-HermesNodes custom_nodes/hermes-nodes
  

No extra Python dependencies - everything used ships with ComfyUI.

Nodes

| Node | Category | What it does | |------|----------|--------------| | WAN Dual LoRA Loader | loaders/wan | Separate LoRA stacks for the HIGH and LOW models, presets, wildcard prompt | | WAN Dual KSampler | sampling | HIGH model for the first switch_step steps, LOW model for the rest; separate CFG per phase | | WAN Dual KSampler (Boundary) | sampling | Same, but switches where the timestep crosses boundary (0.875 T2V / 0.9 I2V) | | Image Scale To | hermes/image | Scale so the shorter/longer side hits a size, keep aspect, snap to a multiple (e.g. 16) | | Pad Image to Square | hermes/image | Scale longest side to size and center on a square canvas of a fill color | | Random Image Loader | hermes/image | Seeded random image from a folder, with a folder picker and in-node preview | | Video Preview | hermes/video | Encode frames (+ audio) to mp4 and play in the node: autoplay, sound on hover, click to pause | | Video Player | hermes/video | Same encoding, native player controls for scrubbing | | Video Compare (Side-by-Side) | hermes/video | Tile up to 6 videos into one grid clip for A/B comparisons |

Node ids (for API-format workflows): WANDualLoraLoader, WANDualKSampler, WANDualKSamplerBeta, and Hermes + the node name for the rest (HermesImageResize, HermesVideoPreview, ...).

Video nodes save to temp/ by default (preview only); enable save_output to write to output/. Saved mp4 files embed the workflow, so they can be dragged back into ComfyUI.

WAN Dual LoRA Loader

LoRAs are read from a dedicated folder tree (created on first start):

models/loras/wan/
├── I2V/          <- LoRAs here appear in both HIGH and LOW lists
│   ├── HIGH/
│   └── LOW/
└── T2V/
    ├── HIGH/
    └── LOW/

• Auto-match - adding x_HIGH to one column also adds its x_LOW twin to the other
• Presets - save/load prompt + both LoRA stacks, grouped into lists (stored in ComfyUI/user/hermes_presets/wan_lora_presets.json)
• Wildcards in the prompt:
  • {option1|option2|option3} - random choice
  • __filename__ - random line from ComfyUI/user/wildcards/filename.txt
  • <random:0.5:1.0> - random float in range

Outputs: model_high, model_low, prompt (wildcards resolved).

License

MIT