---
title: "Interface"
description: "Header, sidebars, viewport and the context menu."
canonical_url: "https://www.softellion.com/en/docs/spectrum/interface"
---

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

<section-md>

The window is split into three areas: the header, the sidebars and the viewport.

## Header

- **Left tabs** — Outliner and Settings panels of the left sidebar.
- **Right tabs** — Materials and Properties panels of the right sidebar.
- **Edge buttons** — collapse or expand the corresponding sidebar.
- **Help button** — opens the built-in help window (also <kbd>

F1

</kbd>

).

## Sidebars

- **Outliner** — the scene hierarchy loaded from KOMPAS-3D. Click items to select objects; <kbd>

Delete

</kbd>

 removes the selected objects from Spectrum — the objects in KOMPAS-3D are not affected. Removed objects come back if you run the export again.
- **Settings** — rendering settings organized in tabs with quality presets. Changes are saved automatically.
- **Materials** — the material library with search, category filter and custom material files.
- **Properties** — properties of the currently selected object.

## Viewport

The central area shows the 3D scene with an interactive preview. When exactly one object is selected, a transform gizmo appears on it (see [Camera & Viewport](https://www.softellion.com/en/docs/spectrum/viewport)).

## Context menu

![Screenshot: viewport context menu open, showing Start/Stop rendering, Load image for IBL, Save rendered image and Clear scene](https://www.softellion.com/img/docs/spectrum/context-menu.png)

Right-click the viewport to open the context menu:

- **Start/Stop rendering** — turn rendering on or off. When rendering is off, the image does not react to camera moves or other changes.
- **Load image for IBL** — set an environment map for image-based lighting.
- **Save rendered image** — save the current render to a file.
- **Clear scene** — remove all objects from the scene.

</section-md>

## Sitemap

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