Epic Games has officially documented Microsoft’s DirectX 12 Advanced Shader Delivery (ASD) integration for Unreal Engine 5.8, marking an important step toward addressing one of the most persistent problems affecting modern PC games: Pipeline State Object (PSO)/shader compilation stutter.
According to Epic Games’ newly published documentation, Unreal Engine 5.8 now includes a dedicated ASD Tool that allows developers to generate a State Object Database (SODB) directly from a cooked (i.e., a game build whose assets have been converted and optimized for the target platform) Windows Direct3D12 game build. This database can then be submitted to supported game storefronts, where its shaders are precompiled for specific GPU architectures and drivers before being downloaded alongside the game.
For those unfamiliar with the technology, Advanced Shader Delivery essentially moves shader compilation away from the player’s PC, allowing supported games to launch faster and significantly reducing the likelihood of encountering shader compilation stutter during gameplay.
We’ve previously reported on Microsoft’s Advanced Shader Delivery implementation for Unreal Engine 5, which was spotted in development back in April 2026. Originally introduced alongside the ROG Xbox Ally handhelds in 2025, the technology has since expanded considerably, with Microsoft recently confirming broader availability across Windows 11 PCs equipped with supported NVIDIA, AMD, Intel, and Qualcomm GPUs.
This development is particularly important for Unreal Engine 5 games, which have become somewhat notorious for shader compilation stutter on PC. Modern UE5 titles can feature an enormous number of shader and PSO permutations, resulting from different materials, rendering techniques, graphics settings, and other combinations of rendering states.
The sheer number of possible permutations makes it extremely difficult for developers to discover, collect, and precompile every required PSO before gameplay. Consequently, some PSOs inevitably end up being compiled on demand as players encounter new effects or environments, potentially causing noticeable spikes in frame time and stuttering even on otherwise powerful hardware.
Microsoft itself has acknowledged this challenge, explaining that certain games contain so many PSO combinations that fully enumerating and compiling them becomes impractical. Its Partial Graphics Programs technology is intended to alle to be compiled once and reused across multiple graphics pipelines
Epic’s implementation makes the process more straightforward for UE5 developers. The new ASD Tool can gather all compute shaders from cooked shader archives, alongside graphics and compute PSOs from bundled pipeline caches, before generating the SODB required for Advanced Shader Delivery. The resulting data can then be compiled into hardware-specific Precompiled Shader Databases (PSDBs) and distributed through supporting storefronts.
There are, however, some important limitations. Advanced Shader Delivery does not replace Unreal Engine 5’s existing PSO precaching mechanisms, and Epic explicitly recommends keeping them enabled. Graphics PSOs must still be collected through pipeline caches, meaning that any missing permutations may require conventional runtime compilation. Ray tracing PSOs are also currently unsupported, while older GPU drivers and unsupported hardware may not benefit from the technology.
Nevertheless, this is a potentially significant development for PC gaming. With Advanced Shader Delivery already supported through the Microsoft Store and Xbox PC App, and Microsoft confirming that the technology is coming to Steam and Epic Games Store, the infrastructure for widespread adoption is steadily taking shape. Epic’s documentation specifically targets early 2027 for Epic Games Store support.
Hopefully, broader integration into Unreal Engine 5, combined with support across Microsoft Store, Steam, Epic Games Store, and eventually other PC game launchers, will finally help bring shader compilation stutter under control. Given just how frequently the problem has plagued Unreal Engine 5 releases, any technology that can substantially reduce it would represent a major quality-of-life improvement for PC gamers.
About the author: Sebastian Castellanos is a data scientist by education and training. He’s also deeply passionate about PC gaming hardware and software. He has recently started writing technical articles and guides on Wccftech about PC hardware, games and mods.
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