⚡ Illustrious Workflow as of version 18g
🛠️ Purpose & Design Philosophy
This workflow is a high-fidelity environment built for Illustrious XL. It prioritizes stability and professional texture over generation speed. It follows an "all-in-one" philosophy: configure your prompts, hit queue, and let the workflow handle the multi-stage refinement from start to finish.
Not for Speed: This is a heavy-duty refinement tool. If you want 2-second previews, use a basic SDXL workflow.
Personal Use: Built for my specific production needs. It is shared as-is for those who want a "set-and-forget" pipeline for Illustrious. Adjust the settings and models to fit your needs.
All-in-One Logic: The workflow handles generation, detailing, and upscaling in one continuous pass.
If you're needing all the bells and whistles: Try checking out ComfyUI Image Workflows by Legendaer here on CivitAI.
🚀 Key Features & 2026 Logic
Global Model Patching (RescaleCFG): Includes a pre-configured RescaleCFG patch (Multiplier: 0.7) applied globally. This acts as "HDR Insurance," preventing the "deep-fried" or over-saturated look common in high-CFG Illustrious runs.
Detail Daemon Sampler: Integrated to enhance structural depth. In this version, it is tuned to start at 0.4 to preserve the core Illustrious character proportions while sharpening hair and eye details.
Hybrid Upscale Strategy: * Group Bypass Switch: Easily toggle between a RTX VSR path for flat anime styles and an Upscale-Model path for 2.5D/highly detailed renders.
Ultimate SD Upscale: Re-draws the upscaled canvas at a 0.2 to 0.35 denoise to lock in fine textures.
Power LoRA Loader: Manage multiple Illustrious-specific LoRAs without messy wiring.
Triple Detailer Groups: 3-stage targeted refinement for faces, hands, and clothing using standard detection models.
CivitAI Meta-Sync: Images are saved with full metadata (Model, LoRAs, Sampler info) for automatic site parsing.
⚠️ Disclaimer & Compatibility
Install at Your Own Risk: Custom nodes can break your environment. I am not responsible for troubleshooting your specific installation.
ComfyUI Portable: Built and tested on the Portable version. Desktop app users may face additional hurdles.
The "Your Version" Factor: Your node versions and environment are 99.9% likely to differ from mine.
Nodes 2.0: I do not recommend using Nodes 2.0. It creates unpredictable UI behavior; I will not provide support for issues involving this feature.
🤝 Support & Boundaries
No DMs: DMs are disabled due to repeat spam. Please check the Discussions tab below; most questions have already been answered.
Modifications: You are free to hack this workflow apart. However, you are responsible for fixing it if it breaks.
Custom Requests: I do not make private workflows. If you need a custom solution, post a Bounty on CivitAI. There are many talented creators ready to help you for a fee.
🛠️ Other Related Info
ComfyUI version: v0.19.3
ComfyUI frontend: v.1.43.1
Custom node links for manual install:
Description
Update Notes: v18g
This update focuses on expanding the high-resolution pipeline for those who want to push their outputs to the absolute limit. We are re-introducing a refined multi-stage upscaling logic that I’ve been testing to solve the "muddiness" often found in massive upscales.
New Feature: Secondary USDU Refinement Pipeline
In v18g, I have added an optional secondary set of groups designed to "double-down" on detail and texture. This is a complex chain that includes:
Image Downscaling: To reset the pixel grid.
Pre-USDU2 Upscale: To prepare the canvas.
CFG Zero Star USDU2 & Ultimate SD Upscale 2: For the final detail injection.
⚠️ The "Double-Edged Sword" Warning
This new pipeline is powerful but can be temperamental. While it excels at creating incredible skin textures and cinematic lighting, it can struggle with high-frequency micro-patterns.
Best For: Portraits, skin-heavy shots, and dramatic low-key lighting.
Avoid For: Fine lace, intricate embroidery, or extremely dense mechanical greebles.
Note: If your image starts looking "over-processed" or you lose the crispness of fine threads, simply Bypass the 2nd USDU groups.
Recommended Settings (TL;DR)
To get the best out of the dual-pass system, the goal is "High Precision, Low Impact" on the second pass:
Pass 1: Use your standard settings to build the structure.
Pass 2: Increase the Step Count but Lower the Denoise (suggested range: 0.20–0.35 depending on your sampler/scheduler combo).
The Logic: This allows the sampler more time to refine the image without having enough "permission" to radically change or blur your existing details.
Other Changes
Legacy Support: The simple Image-to-Image option introduced in v18f remains fully integrated.
Workflow Optimization: General cleanup to accommodate the new node groups without sacrificing the overall speed of the Illustrious base.