KSampler DF (with 2 samplers and Refiner)

A custom ComfyUI node that splits sampling steps between a main sampler and a refiner sampler, with independent denoise control for each phase.

Features

• Split Steps: Divide total steps between main sampler and refiner sampler
• Dual Sampler Support: Use different samplers/schedulers for main and refiner phases
• Independent Denoise Control: Separate denoise parameters for main and refiner phases
• Refiner Intensity: Control how much the refiner affects the final result (0.0 to 1.0)

Installation

Method 1: Comfyui Manager (Recommended)

1- Search KsamplerDF in Comfyui Manager and install

Method 2: Git Clone

1. Open a terminal/command prompt
2. Navigate to your ComfyUI custom nodes folder:

   cd ComfyUI/custom_nodes

3. Clone this repository:

   git clone https://github.com/DevDuckFace/KsamplerDF.git

4. Restart ComfyUI

Method 3: Manual Installation

1. Download this repository as a ZIP file
2. Extract the contents to ComfyUI/custom_nodes/KsamplerDF/
3. Restart ComfyUI

Usage

Find the node in the Add Node menu under: sampling → KSampler DF (with Refiner)

Parameters

Parameter	Description
model	The model used for denoising
positive	Positive conditioning (prompt)
negative	Negative conditioning (negative prompt)
latent_image	The latent image to denoise
seed	Random seed for noise generation
steps	Total number of steps (split between main and refiner)
cfg	Classifier-Free Guidance scale
sampler_name	Sampler algorithm for the main phase
scheduler	Scheduler for the main phase
denoise	Denoise amount for the main phase (0.0 to 1.0)
refiner_at_step	Step at which to switch from main to refiner
sampler_refiner	Sampler algorithm for the refiner phase
scheduler_refiner	Scheduler for the refiner phase
denoise_refiner	Denoise amount for the refiner phase (0.0 to 1.0)

Example

With these settings:

• steps: 20
• refiner_at_step: 12

The node will:

1. Run 12 steps with the main sampler/scheduler
2. Run 8 steps with the refiner sampler/scheduler

Refiner Denoise Control

The denoise_refiner parameter controls how much the refiner phase affects the image:

Value	Effect
0.0	Refiner is skipped (only main sampler runs)
0.5	Refiner applies 50% denoising
1.0	Refiner applies full denoising

File Structure

KsamplerDF/
├── __init__.py
├── nodes.py
└── README.md

Requirements

• ComfyUI (latest version recommended)
• No additional dependencies required

License

MIT License - Feel free to use and modify as needed.