> ## 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.

# LTXVContextWindows - ComfyUI Built-in Node Documentation

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

This node sets context windows for LTXV-like models during sampling. It divides the video generation process into overlapping windows to manage memory usage and improve temporal coherence.

## Inputs

| Parameter                | Description                                                                                                                  | Data Type | Required | Range                                                                          |
| ------------------------ | ---------------------------------------------------------------------------------------------------------------------------- | --------- | -------- | ------------------------------------------------------------------------------ |
| `model`                  | The model to apply context windows to during sampling.                                                                       | MODEL     | Yes      | -                                                                              |
| `context_length`         | The length of the context window in real frames. Must be 8\*n + 1. (default: 145)                                            | INT       | Yes      | Minimum: 1<br />Maximum: nodes.MAX\_RESOLUTION<br />Step: 8                    |
| `context_overlap`        | The overlap of the context window in real frames. (default: 40)                                                              | INT       | Yes      | Minimum: 0<br />Step: 8                                                        |
| `context_schedule`       | Step-dependent scheduling algorithm for context windows. (default: UNIFORM\_STANDARD)                                        | COMBO     | Yes      | `STATIC_STANDARD`<br />`UNIFORM_STANDARD`<br />`UNIFORM_LOOPED`<br />`BATCHED` |
| `context_stride`         | The stride of the context window; only applicable to uniform schedules. (default: 1)                                         | INT       | No       | Minimum: 1                                                                     |
| `closed_loop`            | Whether to close the context window loop; only applicable to looped schedules. (default: False)                              | BOOLEAN   | No       | True<br />False                                                                |
| `fuse_method`            | The method to use to fuse the context windows. (default: PYRAMID)                                                            | COMBO     | Yes      | Options from comfy.context\_windows.ContextFuseMethods.LIST\_STATIC            |
| `freenoise`              | Whether to apply FreeNoise noise shuffling, improves window blending. (default: True)                                        | BOOLEAN   | No       | True<br />False                                                                |
| `retain_first_frame`     | Retain the first latent frame in every context window (may help retain initial reference). (default: False)                  | BOOLEAN   | No       | True<br />False                                                                |
| `split_conds_to_windows` | Whether to split multiple conditionings (created by ConditionCombine) to each window based on region index. (default: False) | BOOLEAN   | No       | True<br />False                                                                |

**Note:** The `context_length` parameter must follow the formula 8\*n + 1, where n is a positive integer. The node automatically adjusts the value to meet this requirement by converting real frames to latent frames. The `context_overlap` is also converted from real frames to latent frames (divided by 8).

## Outputs

| Output Name | Description                                          | Data Type |
| ----------- | ---------------------------------------------------- | --------- |
| `MODEL`     | The model with context windows applied for sampling. | 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/LTXVContextWindows/en.md)

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