# Previews, outputs, and retention

> Distinguish web previews from original render output, download safely through Blender, and plan around current retention.

- Canonical HTML: https://superlumin.al/docs/web-ui/outputs
- Markdown endpoint: https://superlumin.al/docs/web-ui/outputs.md
- Structured page data: https://superlumin.al/docs/web-ui/outputs.json
- Last updated: 2026-08-04
- Author: Superluminal Engineering

## Related Superluminal Research

- [Live Blender render previews](https://superlumin.al/live-previews): Inspect finished Blender frames, play available proxies, open original EXR layers, and read frame logs while later frames still render.
- [The Superluminal render interface](https://superlumin.al/interface): A visual tour of Superluminal's Blender add-on, file checks, live job page, previews, and output downloads.
- [Cycles on a render farm](https://superlumin.al/cycles-render-farm): Cycles animations can split across render nodes. Measured jobs show how node count, startup time, GPU memory, and settings affect the result.

## Complete documentation

Superluminal shows two kinds of image: fast web previews for review, and the original render files you deliver. This page explains the difference, what multilayer scenes produce, and how long output stays on the farm.

## Preview versus original

| Place | Purpose | Use for final delivery? |
| --- | --- | --- |
| Web frame grid and player | Fast status, composition, motion, layer, and error review. | No. Previews are optimized derivatives. |
| Blender **Manage & Download** | Transfer the original completed render objects. | Yes, after local validation. |

The web preview can show one selected layer, pass, camera, or output, and it can arrive after the full render object. A missing preview does not prove the original file is missing. Check job state and logs.

## Multilayer and additional outputs

Multilayer OpenEXR, multiple view layers, cameras, and compositor file-output nodes can produce more than one reviewable or downloadable item per frame. In the web app, choose the expected layer. After download, inspect the original files in software that understands the intended format and layer structure.

## Download from Blender

![Manage & Download with the job list, download path, and the Download job output action](https://superlumin.al/docs/images/blender/addon-manage-downloads.png)

*Manage & Download in the add-on: pick the job, pick a folder, download the original frames.*

- [Annotation 1: Job list with status and progress](/docs/blender-addon/manage-and-download#refresh-and-select-a-job)

- [Annotation 2: Download path and job output](/docs/blender-addon/manage-and-download#download-output)

You download originals through the add-on's **Manage & Download** section. The transfer can start before the job finishes, resumes safely, and picks up re-rendered frames. The step-by-step walkthrough, [the download terminal](/docs/blender-addon/manage-and-download#the-download-terminal), resume behavior, and safe download habits live in [Manage & Download](/docs/blender-addon/manage-and-download#download-output).

## Seven-day render-object retention

The farm currently keeps render objects for seven days. Treat it as a render and transfer service, not an archive.

### Keep a durable copy

Download, verify, and back up production output before the retention window expires. A future Storage product is visible as a preview, but do not use it as the archive for render output yet.

## Verification checklist

- Expected frame numbers and step are present.
- Image dimensions, format, channels, layers, and color interpretation are correct.
- File-output-node and multi-camera results are accounted for.
- Rerendered frames replaced the intended local versions.
- A checksum, asset-management system, or spot review confirms the durable copy.
- The production backup is separate from the add-on's download folder when the workstation is not itself backed up.

- [Manage & Download](/docs/blender-addon/manage-and-download): Use the add-on's live polling and resume behavior.
- [Job details](/docs/web-ui/job-details): Review layers, frame state, settings, and logs before transfer.
- [Availability](/docs/availability): Understand the current Storage preview boundary.