Viewport Realtime Idle Pause Documentation

Automatically pauses Realtime in inactive editor viewports and resumes on interaction. Editor-only.

Installation

1. Edit → Plugins
2. Search Viewport Realtime Idle Pause → Enable
3. Restart the Unreal Editor

Basic Usage

Configure

• Edit → Editor Preferences → Plugins → Viewport Realtime Idle Pause
• Set IdleTimeSeconds and optional focus/viewport behavior.

Quick toggle

• Level Viewport → Performance & Scalability flyout → Enable Auto Pause (toolbar toggle).
• The menu also exposes a numeric control: Idle After (seconds).

Functionality

Stop interacting with a viewport → after IdleTimeSeconds, that viewport’s Realtime becomes Off. Each viewport has its own timer like this.

Press Ctrl-R, click an object or navigate the camera in that viewport → Realtime becomes On.

If bPauseOnEditorUnfocused is enabled, switching to another app pauses immediately.

With bPauseInactiveViewports, any unused viewport pauses.