Category: Rendering

New Course: Complete Game Optimization for Unreal Engine 5

It’s finally here! My new course about Game Performance & Optimization has launched! It’s called: Complete Game Optimization for Unreal Engine 5 What’s included? We cover everything you need to optimize your game, from deep dives with the profiling...

Setting up PSO Precaching & Bundled PSOs for Unreal Engine

Unreal Engine titles have faced stutter issues on PC with DirectX 12. These hitches primarily stem from inefficient handling of Pipeline State Objects (PSOs), which preconfigure GPU states but suffer from on-demand compilation delays. Unreal Engine 5.1 introduced PSO Precaching to preemptively compile PSOs, but issues persist with partial coverage. The article details implementing PSO Precaching alongside the older Bundled PSOs approach for better frame pacing.

Unreal Engine Game Optimization on a Budget

Companion text version of the Unreal Engine Game Optimization talk I presented during JetBrains GameDev Days 2022.

Exploring DLSS 2.0 in Unreal Engine

Last year Nvidia announced DLSS 2.0 with the ability to open this new anti-aliasing solution for all games. The game-specific deep learning is no longer required as it was with prior iterations. For an indie...

Auto-detect Optimal Graphics Settings for Unreal

Unreal Engine can auto-detect ‘optimal’ (graphical) settings per player based on a quick CPU and GPU benchmark. The functions are available in Blueprint to hook up into your game’s options menu. Behind the scenes, the...

Moving Unreal Engine Camera While Game Is Paused

You can enable camera movement while the game is paused by setting a few simple options: bShouldPerformFullTickWhenPaused and bIsCameraMoveableWhenPaused.

Optimize Shader Compilation & Package Sizes

Unreal Engine Project Settings allow a major reduction (up to 50%) of shader permutations affecting shader compile times, package size, and load times. You can find the options under the Engine > Rendering > Shader...

Rotating meshes using Vertex Shaders

Rotating (ambient) meshes in your world adds a dynamic element, but doing this on the CPU and having to pass it to the GPU each frame is a relatively slow operation. Without realizing you may...

Mesh Outlines Without Post-Processing in Unreal Engine

Some time ago I saw a neat solution by Cory Spooner on outlining meshes using particle sprites. The concept has been done before – but it’s interesting enough to cover it regardless for Unreal Engine...

Adding Stat Traces (Stat Commands) in Unreal Engine

The only sane way to optimize your game is by having good profiling metrics. Unreal Engine comes packed with several good profiling tools and “stat commands” is one such feature. It allows us to measure...

Tom Looman