BOOL Constant(BOOLConstant)

From a technical implementation perspective, the BOOL Constant node belongs to the KJNodes/constants category. Its core mechanism is to receive a user-defined boolean value as input and output it unchanged.

BOOL Constant is a node used to generate a boolean constant, allowing users to create a fixed boolean value (True or False) within a ComfyUI workflow. The primary function of this node is to provide a static logical switch to control the behavior of other nodes in the flow.

Node Function

From a technical implementation perspective, this node belongs to the KJNodes/constants category. Its core mechanism is to receive a user-defined boolean value as input and output it unchanged. It supports the standard BOOLEAN data type. Internally, it directly returns the input parameter value via the get_value function, making it simple and efficient.

Node Parameter Description - BOOL Constant

Control Parameters (Parameters)

Output

Usage Scenarios

In practical applications, this node is often used as the starting point for logical control flows. For example, in a conditional image generation workflow, the output of the BOOL Constant node can be connected to the "enable" or "skip" parameters of other nodes to determine whether to execute steps such as image upscaling or specific filter processing.

Notes

This node has a single function and has no special usage restrictions or considerations. It only outputs a boolean value and does not involve complex calculations or data transformations.

BOOL Constant Node Source Code Link

The BOOL Constant node is from the ComfyUI-KJNodes node package.