Posts about Pipeline State Object (PSO) caching in Unreal

PSO Caching

Modern 3D APIs use pipeline state objects to reflect the state of the pipeline at a shader invocation. Managing these is a core part of reducing hitches in gameplay. I hadn't intended to make this a series, but it's unsolved, and I'm in a position to discuss how I've tried to deal with it.

Unreal Engine

PSO Caching Update: UE5

An update to the state of PSO caching and to the tools I was making to ease PSO collection headaches.

Unreal Engine Featured

PSO Caching in Unreal Engine

Pipeline State Object (PSO) caching in Unreal Engine 5 for Windows (DirectX 12 SM5/6) and Linux (Vulkan SM5). PSO caching enables developer control over shader precompilation and reduces stutter linked to just-in-time shader compilation.