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

# Old Film

> Full aged-film simulation — dust, scratches, brightness flicker, uneven development, and frame weave, like footage run through a worn projector.

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## What this node does

**Old Film** layers several classic film-damage artifacts onto a clip: random dust and vertical scratch lines, brightness flicker, uneven "development" density, and physical frame weave (shake). Each artifact type has its own controls, so you can dial from a subtle vintage feel to heavily distressed archive footage.

This is a rendered stage — it needs a **▶ Run**. It uses a torch (GPU) backend. In goes `COMFYTV_VIDEO`, out comes `COMFYTV_VIDEO`.

To hand the result to a native ComfyUI node, insert a **Bridge**. See [bridges.md](https://github.com/jtydhr88/ComfyTV/blob/main/docs/bridges.md).

## When to use it

* Turn a clean render into vintage / archive-style footage.
* Add flicker and scratches to a "found footage" or flashback sequence.
* Sell an old-projector or Super-8 aesthetic.

## Parameters

Values are integers unless noted. Higher generally means more/stronger of that artifact.

### Dust and scratches

* **delta** `0`–`400`, default `14` — intensity/amount of dust and speckle damage.
* **every** `0`–`100`, default `20` — how often dust appears over time (frame interval / frequency).

### Brightness flicker

* **brightness\_up** `0`–`100`, default `20` — how far brightness can rise on a flicker.
* **brightness\_down** `0`–`100`, default `30` — how far brightness can drop on a flicker.
* **brightness\_every** `0`–`100`, default `70` — how frequently the flicker occurs.

### Development (density unevenness)

* **develop\_up** `0`–`100`, default `60` — upper range of the development density variation.
* **develop\_down** `0`–`100`, default `20` — lower range of the development density variation.
* **develop\_duration** `0`–`10000`, default `70` — how long each development variation lasts.

### Scratch lines

* **lines\_num** `0`–`100`, default `5` — number of vertical scratch lines.
* **line\_width** `0`–`100`, default `2` — thickness of each scratch line.
* **lines\_darker** `0`–`100`, default `40` — how dark the darkening scratches get.
* **lines\_lighter** `0`–`100`, default `40` — how bright the lightening scratches get.

### Frame weave (shake)

* **weave\_x** `0.0`–`32.0` (step `0.5`), default `0.0` — horizontal frame jitter amount.
* **weave\_y** `0.0`–`32.0` (step `0.5`), default `0.0` — vertical frame jitter amount.
* **weave\_interval** `0.05`–`5.0` (step `0.05`), default `0.6` — how often the weave shifts.

### seed

`0`–`99999`, default `7`. Random seed for the damage pattern. Change it to get a different distribution of dust/scratches/flicker; keep it fixed for a repeatable look.

## Outputs

| Output    | Type            | Meaning             |
| --------- | --------------- | ------------------- |
| **video** | `COMFYTV_VIDEO` | The distressed clip |

## Tips

* Start with `weave_x`/`weave_y` at `0` and add just a little (1–3) for a realistic gate weave — large values look like a shaky handheld shot.
* Set the `0` values to disable a whole artifact group (e.g. `lines_num=0` removes scratch lines).
* For grain alone with tonal control, use **Regrain** instead; for a lighter, faster vintage combo, the `old_film` preset in **Video Stylize** is enough.

## Related nodes

* **Regrain** — physically-modeled film grain with per-tonal-range control.
* **Video Stylize** — lighter `old_film` preset plus other one-click looks.