Extensions/ComfyUI Mohseni Kit
ComfyUI Extension

ComfyUI Mohseni Kit

A collection of useful nodes for ComfyUI, including Float Preview for live image visualization.

By mohsenicreative·Created about a year ago·Updated 2 months ago· 1
mohseni-mr/ComfyUI-Mohseni-Kit
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On cloudLocal install
Category⚡ Mohseni Kit/Image, ⚡ Mohseni Kit/Sampling
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Updated2 months ago

Nodes (2)

🖼️ Float Preview
⚡ Mohseni Kit/Image
📈 Mohseni Scheduler
⚡ Mohseni Kit/Sampling
Readme

⚡ ComfyUI Mohseni Kit

A collection of professional custom nodes for ComfyUI, focused on precise sampling control and a smoother preview workflow.

Nodes

| Node | Category | Purpose | |---|---|---| | 📈 Mohseni Scheduler | ⚡ Mohseni Kit / Sampling | Karras polynomial sigma scheduler tuned for two-stage sampling | | 🖼️ Float Preview | ⚡ Mohseni Kit / Image | Floating, always-on-top image preview window |

📈 Mohseni Scheduler

A custom sigma scheduler that outputs a SIGMAS curve using Karras polynomial spacing with a tunable shape. It is built for two-stage sampling — a composition/color pass followed by a detailing pass — letting the same formula bias steps toward either end of the noise range.

Output: SIGMAS — connect it to SamplerCustom / SamplerCustomAdvanced (with a KSamplerSelect), not the standard KSampler.

Parameters

| Parameter | Description | Typical | |---|---|---| | scheduler | Spacing formula. Currently karras_polynomial (extensible). | — | | steps | Sampling steps for this stage. | 15–30 | | denoise | 1.0 starts from pure noise; lower values start partway down the curve. | detail: 0.35–0.5 | | rho | Curve shape. < 1 = composition (steps held high), 1 = linear, > 1 = detail (steps packed low). | compose 0.4–0.8 / detail 7–15 | | shift | Adds high-noise step density on top of rho (resolution-aware). 1.0 = off. | compose 2–4 / detail 1.0 | | sigma_max | Top of the noise range. 0 = auto from model. | 0 | | sigma_min | Bottom of the noise range. 0 = auto from model. | 0 |

Why polynomial spacing

Composition and color form at high noise; fine detail forms at low noise. rho decides where the steps are spent:

  • Composition — rho below 1 (e.g. 0.6) holds steps in the high-noise band; add shift 2–4 for more resolution there.
  • Detail — rho of 7–15 concentrates steps in the low-noise band, which adds detail far more cleanly than exponential spacing.

Two-stage detailing recipe

| | Pass 1 — composition | Pass 2 — detail | |---|---|---| | steps | 24 | 18 | | denoise | 1.0 | 0.45 | | rho | 0.6 | 10.0 | | shift | 3.0 | 1.0 | | sigma_max / sigma_min | 0 / 0 | 0 / 0 |

Per pass, wire Mohseni Scheduler → SamplerCustom (sigmas) and KSamplerSelect → SamplerCustom (sampler). Pass 1 runs on an empty latent (add_noise on); feed its LATENT into Pass 2 (add_noise on), then VAE Decode.

Tip: for a detail pass without splitting, use denoise 1.0 with sigma_max ≈ 2.5 and sigma_min 0 to keep the whole schedule in the low-noise band.

KSampler dropdown presets

Two fixed presets are added to the standard KSampler scheduler dropdown automatically:

  • mohseni_compose — composition-weighted (rho 0.5, shift 3)
  • mohseni_detail — detail-weighted (rho 7)

They are fixed-value (no live controls) — use the node to tune, the presets for speed. On an incompatible ComfyUI build they are skipped without affecting the rest of the kit.

🖼️ Float Preview

A floating, resizable, always-on-top image preview window that lives outside the ComfyUI interface — ideal for multi-monitor setups.

Features

  • Live preview that updates as the workflow runs
  • Batch support — scroll through multiple images
  • Save to disk or copy to clipboard
  • Always-on-top toggle and free window dragging
  • Persistent window size, position, and state across sessions
  • Keyboard shortcuts and a right-click menu

Controls

| Action | Description | |---|---| | ← / ↑ | Previous image | | → / ↓ | Next image | | Ctrl + T | Toggle always on top | | Ctrl + C | Copy current image to clipboard | | Ctrl + S | Save current image (PNG / JPEG) | | Esc | Close the window | | Right click | Open the context menu |

Connect any IMAGE output to the node and run the workflow; the window appears and tracks new outputs.

📥 Installation

ComfyUI Manager

Search for ComfyUI Mohseni Kit in ComfyUI Manager, click Install, then restart ComfyUI.

Manual

cd ComfyUI/custom_nodes
git clone https://github.com/mohsenicreative/ComfyUI-Mohseni-Kit

Restart ComfyUI. Dependencies are installed automatically; if needed, install them manually:

pip install PyQt6 ftfy psutil

📜 License

Licensed under Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0).

  • Credit the original author: Mohammadreza Mohseni.
  • Modifications must be shared under the same license.
  • Commercial use is allowed with attribution.

Full text: CC BY-SA 4.0

📬 Contact

Mohammadreza Mohseni