> ## Documentation Index
> Fetch the complete documentation index at: https://dripart-feat-openapi-i18n.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# PerpNegGuider - ComfyUI Built-in Node Documentation

> Complete documentation for the PerpNegGuider node in ComfyUI. Learn its inputs, outputs, parameters and usage.

The PerpNegGuider node creates a guidance system for controlling image generation using perpendicular negative conditioning. It takes positive, negative, and empty conditioning inputs and applies a specialized guidance algorithm that computes all three noise predictions in a single batch for efficiency. This node is designed for experimental testing and provides fine control over the guidance strength and negative scaling.

## Inputs

| Parameter            | Description                                                                                                             | Data Type    | Required | Range       |
| -------------------- | ----------------------------------------------------------------------------------------------------------------------- | ------------ | -------- | ----------- |
| `model`              | The model to use for guidance generation                                                                                | MODEL        | Yes      | -           |
| `positive`           | The positive conditioning that guides the generation toward desired content                                             | CONDITIONING | Yes      | -           |
| `negative`           | The negative conditioning that guides the generation away from unwanted content                                         | CONDITIONING | Yes      | -           |
| `empty_conditioning` | The empty or neutral conditioning used as a baseline reference for perpendicular negative guidance                      | CONDITIONING | Yes      | -           |
| `cfg`                | The classifier-free guidance scale that controls how strongly the conditioning influences the generation (default: 8.0) | FLOAT        | Yes      | 0.0 - 100.0 |
| `neg_scale`          | The negative scaling factor that adjusts the strength of the perpendicular negative effect (default: 1.0)               | FLOAT        | Yes      | 0.0 - 100.0 |

## Outputs

| Output Name | Description                                                           | Data Type |
| ----------- | --------------------------------------------------------------------- | --------- |
| `guider`    | A configured guidance system ready for use in the generation pipeline | GUIDER    |

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/PerpNegGuider/en.md)

***

**Source fingerprint (SHA-256):** `02e4b4e0ea413da31c280cb1e510bdf5caa7b5187eb6de94632e45a91e881820`