> ## Documentation Index
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# WanDancerVideo - ComfyUI Built-in Node Documentation

> The WanDancerVideo node prepares conditioning data and an empty latent tensor for video generation with the WanDancer model.

The WanDancerVideo node prepares conditioning data and an empty latent tensor for video generation with the WanDancer model. It attaches optional starting images, masks, CLIP vision embeddings, and audio features to the positive and negative conditioning so they can guide the generated video.

## Inputs

| Parameter                | Description                                                                                                                                      | Data Type              | Required | Range                            |
| ------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------- | -------- | -------------------------------- |
| `positive`               | The positive conditioning to guide video generation.                                                                                             | CONDITIONING           | Yes      |                                  |
| `negative`               | The negative conditioning to guide video generation.                                                                                             | CONDITIONING           | Yes      |                                  |
| `vae`                    | The VAE used to encode the start image into the latent space.                                                                                    | VAE                    | Yes      |                                  |
| `width`                  | The width of the generated video in pixels (default: 480).                                                                                       | INT                    | Yes      | 16 to MAX\_RESOLUTION (step: 16) |
| `height`                 | The height of the generated video in pixels (default: 832).                                                                                      | INT                    | Yes      | 16 to MAX\_RESOLUTION (step: 16) |
| `length`                 | The number of frames in the generated video. Should stay 149 for WanDancer (default: 149).                                                       | INT                    | Yes      | 1 to MAX\_RESOLUTION (step: 4)   |
| `clip_vision_output`     | The CLIP vision embeds for the first frame.                                                                                                      | CLIP\_VISION\_OUTPUT   | No       |                                  |
| `clip_vision_output_ref` | The CLIP vision embeds for the reference image.                                                                                                  | CLIP\_VISION\_OUTPUT   | No       |                                  |
| `start_image`            | The initial image(s) to be encoded, can be any number of frames.                                                                                 | IMAGE                  | No       |                                  |
| `mask`                   | Image conditioning mask for the start image(s). White is kept, black is generated. Used for the local generations.                               | MASK                   | No       |                                  |
| `audio_encoder_output`   | An audio encoder output that provides audio features, frame rate, and inject scale values, which are attached to the conditioning when provided. | AUDIO\_ENCODER\_OUTPUT | No       |                                  |

### Notes on Parameter Behavior

* `start_image` is optional. When provided, it is resized to `width` and `height`, encoded by the `vae`, and attached to both the positive and negative conditioning. If `start_image` has more frames than `length`, the extra frames are dropped. If it has fewer frames, the missing frames are filled with zero values.
* `mask` only has an effect when `start_image` is also provided. White areas are kept, and black areas are generated.
* `clip_vision_output_ref` only has an effect when `clip_vision_output` is also provided.
* `audio_encoder_output`, when provided, attaches audio embeddings, frame rate, and injection scale to both the positive and negative conditioning.

## Outputs

| Output Name | Description                                                                                       | Data Type    |
| ----------- | ------------------------------------------------------------------------------------------------- | ------------ |
| `positive`  | The positive conditioning with any attached start-image latent, mask, CLIP vision, or audio data. | CONDITIONING |
| `negative`  | The negative conditioning with any attached start-image latent, mask, CLIP vision, or audio data. | CONDITIONING |
| `latent`    | An empty latent tensor sized for the requested video length, height, and width.                   | LATENT       |

> 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/WanDancerVideo/en.md)

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