UE5 represents the future of gaming graphics - but there’s still work to be done.

Let’s start with what Unreal announced in the beginning: those much-lauded Unreal Engine 5 graphical features.

How are Lumen, Nanite, and Virtual Shadow Maps on PC?

a graphic with five unreal engine 5 game characters shown, including immortals of aveum, robocop and others

In The Talos Principle 2 for example, we see Croteam heavily leveraging all three technologies to great effect.

Lumen looks great here.

Fort Solis is a good example of the difference that hardware Lumen can make.

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Desordre therefore offers scaling all the way from console-level software RT to super-high-end path tracing.

Nearly every UE5 title I tested offered DLSS, FSR2, XeSS and Unreal Engine TSR.

What about Unreal Engine’s classic bugbear: shader compilation stutter?

comparison between medium and ultra global illumination in UE5

Here I can report both great and not-so-great things.

This works well, but isn’t perfect - nearly every title I tested still hadsomeshader compilation stutters.

Unfortunately, UE5 also exhibits the traversal stutter seen in nearly every single UE4 game.

Exposing multiple RT quality levels allows games to scale beyond the capabilities of current hardware. This comparison shows software Lumen (108fps), hardware Lumen (100fps), hardware Lumen plus RT Hit Lighting (93fps), hardware Lumen plus RT Hit Lighting and RTXDI (51fps) and path tracing (41fps).

Here, only two CPU cores are fully loaded, while the rest remain underutilised.

With the right artwork and direction, these games can look absolutely stunning.

Of these, shader compilation stutter and traversal stutter were the most common complaints.

A comparison between Nanite being enabled and disabled in Lords of the Fallen.

As-is, most games tested used software Lumen only and had very basic menu options beyond that.

A comparison between Nanite being enabled and disabled in Remnant 2.

shader compilation stutter shown in Remnant 2

shader compilation stutter shown in The Talos Principle 2

a screenshot of Jusant with DF tools showing a frame-time spike

Cover image for YouTube video