> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# WanUni3CControlnetApply - ComfyUI Built-in Node Documentation

> Documentation for WanUni3CControlnetApply node.

## Overview

This node applies a Uni3C ControlNet to a Wan video diffusion model, using a rendered guidance video (e.g., warped point cloud renders) to influence the model's output. It injects control signals at specific block layers, enabling camera-trajectory-based guidance during video generation.

## Inputs

| Parameter | Description | Data Type | Required | Range |
| - | - | - | - | - |
| `model` | The Wan diffusion model to patch. | MODEL | Yes | – |
| `model_patch` | A Uni3C ControlNet patch (must be an instance of `comfy.ldm.wan.uni3c.WanUni3CControlnet`). | MODEL\_PATCH | Yes | – |
| `vae` | The VAE used to encode the guidance video into latents. | VAE | Yes | – |
| `render_video` | The guidance video rendered from the camera trajectory, most commonly warped point cloud renders of the input image. | IMAGE | Yes | – |
| `strength` | The strength of the control signal applied. | FLOAT | Yes | -10.0 to 10.0 (default: 1.0) |
| `start_percent` | The percentage of the denoising process at which the control starts. | FLOAT | Yes | 0.0 to 1.0 (default: 0.0) |
| `end_percent` | The percentage of the denoising process at which the control ends. | FLOAT | Yes | 0.0 to 1.0 (default: 1.0) |

**Notes:**

* The `model_patch` must be a Uni3C ControlNet; otherwise the node raises an error.
* The Uni3C ControlNet only works with Wan models; an error is raised if the model is not Wan-based.
* The controlnet's internal dimension must match the Wan model's dimension – an error is raised if they differ.
* The `render_video` input image is expected to be in RGB format (only the first 3 channels are used).
* This node is experimental.

## Outputs

| Output Name | Description | Data Type |
| - | - | - |
| `MODEL` | The patched Wan model with the Uni3C ControlNet applied. | MODEL |

> 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/WanUni3CControlnetApply/en.md)

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