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Unreal Engine 5.1 Preview 1 is available for download

Epic Games has released the first preview build of Unreal Engine 5.1 to the public. Developers and enthusiasts can download this preview build for free via the Epic Games Launcher.

According to Epic, Unreal Engine 5.1 offers performance improvements with Lumen, Nanite, and Virtual Shadow Maps (VSM), allowing games to run at 60 fps on current-gen consoles and PCs.

“Build expansive worlds using new functionality and improved workflows for World Partition, including support for Large World Coordinates. And enjoy significant improvements to cinematic pipelines, such as performance and usability improvements for ICVFX.”

Now what’s also interesting about Unreal Engine 5.1 is its new Automated PSO Gathering. Automated PSO Gathering will attempt to resolve the shader stuttering issues we’ve witnessed in Unreal Engine 4-powered games. This is huge, and we’re looking forward to seeing some examples of this.

As Epic Games has stated:

“With the increasing emphasis in UE5 on DX12 and Vulkan, we’re focusing attention on solving the problem of runtime hitches caused by Pipeline State Object creation, which is inherent to those RHIs. The previous solution required a PSO pre-caching process, which could be burdensome for large projects, and still leave gaps in the cache leading to hitches.

Automated PSO Gathering replaces the manual work required to collect all possible PSO combinations for a project, while at the same time keeping the number of PSOs as small as possible.”

Stay tuned for more!