---
title: "Rendering"
description: "Quality settings, IBL lighting and saving the result."
canonical_url: "https://www.softellion.com/en/docs/spectrum/rendering"
---

> Index of every page on this site: [llms.txt](https://www.softellion.com/llms.txt)

<section-md>

## Settings

Open the **Settings** panel (left sidebar) before rendering. Settings are grouped into tabs; each tab offers quality presets — pick a preset, then fine-tune individual values if the preset is editable. All changes are saved automatically and applied to the active render.

## Rendering

1. Choose **Start/Stop rendering** in the viewport context menu — the render pass begins.
2. Frame the camera — the render uses the current view direction.
3. Choose **Start/Stop rendering** again to stop.

## Lighting

By default the scene is lit by the built-in environment. **Load image for IBL** in the context menu replaces it with an image-based lighting environment (for example, an HDR panorama), which changes both lighting and reflections.

![Video: the same scene before and after loading an IBL environment image — lighting and reflections change](https://www.softellion.com/video/docs/spectrum/ibl.webm)

## Saving the result

![A comparison of different render times](https://www.softellion.com/img/docs/spectrum/noise-samples.png)

Due to the nature of ray tracing, the image improves over time: the accumulated render gradually converges and the noise clears away. Any change — orbiting the camera, moving objects, changing a material or the lighting — resets the accumulation, and convergence starts over. So for the best saved-image quality give the render time: do not move the camera or make other changes until the image quality stops improving, and only then run **Save rendered image** from the context menu.

</section-md>

## Sitemap

See the full [sitemap](https://www.softellion.com/sitemap.md) for all pages.