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

# LTXVContextWindows - ComfyUI Built-in Node Documentation

> This node sets context windows for LTXV-like models during sampling.

This node sets context windows for LTXV-like models during sampling. It divides generation into overlapping windows to help 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       | Yes      | Minimum: 1                                                                             |
| `closed_loop`            | Whether to close the context window loop; only applicable to looped schedules. (default: False)                                        | BOOLEAN   | Yes      | True<br />False                                                                        |
| `fuse_method`            | The method to use to fuse the context windows. Available options are defined by `ContextFuseMethods.LIST_STATIC`. (default: "PYRAMID") | COMBO     | Yes      | Defined by `ContextFuseMethods.LIST_STATIC`                                            |
| `freenoise`              | Whether to apply FreeNoise noise shuffling, improves window blending. (default: True)                                                  | BOOLEAN   | Yes      | True<br />False                                                                        |
| `retain_first_frame`     | Retain the first latent frame in every context window (may help retain initial reference). (default: False)                            | BOOLEAN   | Yes      | 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   | Yes      | True<br />False                                                                        |

**Note:** The `context_length` value is provided in real frames and is internally converted to latent frames using the formula `((context_length - 1) // 8) + 1`, with a minimum of 1. The `context_overlap` value is also provided in real frames and is converted to latent frames using integer division by 8, with a minimum of 0. The tooltip for `context_length` indicates it must follow the pattern 8\*n + 1.

## 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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