Intel XeSS 3.1 Plugin Adds Support for Unreal Engine 5.8

Intel has released version 3. 1. 0 of its XeSS plugin for Unreal Engine, bringing support for Unreal Engine 5. 8 and updating the bundled XeSS SDK to version 3. 0. 2. The plugin provides access to XeSS Super Resolution, XeSS Multi-Frame Generation, and Xe Low Latency, with separate packages available for Unreal Engine versions from 4. 26 up to 5. 8.

Key Improvements and Fixes

This update follows the recent release of the standalone XeSS SDK 3. 0. 2. As part of the plugin update, the XeLL version has been bumped to 1. 3. 2. 10, and a memory leak affecting non-Intel GPUs has been fixed. The leak could occur when a game stopped calling the Present function while XeLL remained active and continued recording markers.

Intel also addressed a crash related to NVIDIA Streamline proxy objects and corrected the value reported by the xellGetSleepMode function. Additionally, the plugin now handles logging levels correctly and adjusts the configuration of XeSS-SR view families when no view requires temporal scaling.

The developer guide has been updated, and parts of the plugin code have been reworked. However, there is a known issue with the new Unreal Engine 5. 8 package: XeLL does not work correctly with Unreal Engine 5. 8. 0 or 5. 8. 1. Developers will need to wait for an Unreal Engine update or apply a related source code patch from Epic Games. Despite this, XeSS Super Resolution and Multi-Frame Generation remain functional in the UE 5. 8 plugin package. Intel continues to refine its upscaling technology, ensuring compatibility with the latest game engines.