ComfyUI Node: K

Class Name

SimpleKnobNode

Category
CRT/Utils/UI
Author
CRT (Account age: 1707days)
Extension
CRT-Nodes
Latest Updated
2026-03-16
Github Stars
0.1K

How to Install CRT-Nodes

Install this extension via the ComfyUI Manager by searching for CRT-Nodes
  • 1. Click the Manager button in the main menu
  • 2. Select Custom Nodes Manager button
  • 3. Enter CRT-Nodes in the search bar
After installation, click the Restart button to restart ComfyUI. Then, manually refresh your browser to clear the cache and access the updated list of nodes.

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K Description

SimpleKnobNode: A utility node for intuitive floating-point value adjustment via a knob widget.

K:

The SimpleKnobNode is a versatile utility node designed to provide a user-friendly interface for adjusting a floating-point value within a specified range. This node is particularly useful in scenarios where precise control over a numerical parameter is required, such as fine-tuning effects or settings in a creative workflow. By offering a simple knob widget, it allows you to intuitively manipulate values, making it easier to achieve the desired outcome without needing to input numbers manually. The node's primary function is to return the adjusted value, which can then be used in subsequent nodes or processes. Its inclusion in the CRT/Utils/UI category highlights its role in enhancing user interaction and control within the node-based environment.

K Input Parameters:

value

The value parameter is a floating-point number that you can adjust using a simple knob widget. This parameter allows you to set a specific numerical value within a defined range, which is crucial for tasks that require precision. The value parameter has a default setting of 0, with a minimum allowable value of -10000.0 and a maximum of 10000.0. The step size for adjustments is 0.01, enabling fine-grained control over the value. This parameter's primary function is to provide a flexible and intuitive way to input a numerical value, which can significantly impact the node's execution and the results of any connected processes.

K Output Parameters:

FLOAT

The output of the SimpleKnobNode is a single floating-point number, denoted as FLOAT. This output represents the value that has been adjusted using the knob widget. The importance of this output lies in its ability to be used as an input for other nodes or processes, allowing for dynamic and responsive adjustments in your workflow. The output value is directly influenced by the input parameter, making it a crucial component for achieving the desired effects or settings in your creative projects.

K Usage Tips:

  • Use the SimpleKnobNode when you need precise control over a numerical parameter, as the knob widget allows for easy and intuitive adjustments.
  • Take advantage of the wide range of values (-10000.0 to 10000.0) to explore different settings and effects, especially in scenarios where extreme values might yield interesting results.

K Common Errors and Solutions:

Value Out of Range

  • Explanation: This error occurs when the input value exceeds the specified range of -10000.0 to 10000.0.
  • Solution: Ensure that the value you input or adjust using the knob widget falls within the allowed range. If necessary, reset the value to the default of 0 and adjust from there.

Invalid Step Size

  • Explanation: This error might occur if the step size for adjustments is not adhered to, potentially due to manual input.
  • Solution: Use the knob widget to adjust the value, ensuring that changes are made in increments of 0.01 to maintain precision and avoid errors.

K Related Nodes

Go back to the extension to check out more related nodes.
CRT-Nodes
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