This is the primary caching method built into modern versions of Yuzu. When a shader is compiled, it is written to your computer's storage drive for future use. The next time you encounter that same visual effect, Yuzu can instantly load and reuse it from the disk, eliminating stuttering entirely.
Optimizing Switch Emulation: The Ultimate Guide to Yuzu Shader Caches
However, the concept of the Shader Cache lives on in two ways:
For Vulkan, Yuzu includes a feature that stores all pipelines in a VkPipelineCache object, dumping them to disk for reuse. This was implemented specifically to circumvent issues with certain drivers (especially older AMD drivers) that would otherwise invalidate or delete the native driver cache. yuzu shader cache
Additionally, Mesa’s driver cache may be stored at:
When you play a game in Yuzu, the emulator translates the original Switch shaders into a format your PC hardware understands. Transferable Cache:
) is a collection of pre-compiled instructions that tell your GPU how to render specific visual effects, like explosions or textures. Without a cache, your computer has to "learn" these effects in real-time, causing annoying stutters every time a new animation occurs. 1. How Shader Caches Work Compilation: This is the primary caching method built into
Emulation turns your PC into a universal gaming console. However, stuttering and sudden frame drops can easily ruin the experience. When simulating modern consoles like the Nintendo Switch, the primary culprit behind performance hiccups is shader compilation.
Shaders are highly sensitive to hardware configurations. A pipeline cache built on an AMD graphics card using old drivers may cause graphical artifacts, crashes, or outright instability if loaded onto an Nvidia system.
Yuzu has implemented environment variables to prevent other software from interfering with the driver's shader cache. By setting __GL_SHADER_DISK_CACHE_PATH , Yuzu forces the cache directory to be inside its own user directory, protecting it from malware. Setting __GL_SHADER_DISK_CACHE_SKIP_CLEANUP prevents the driver from automatically cleaning up older cache entries, creating an unbounded cache size. This implementation is currently available mainly on Windows. Optimizing Switch Emulation: The Ultimate Guide to Yuzu
: For Nvidia users, enabling the "Fast GPU Time" or specific NVN texture hacks in the advanced settings can accelerate how quickly shaders are processed. Where to Find the Shader Cache Folder
As of early 2024, the standard Yuzu shader version is . Older builds (version 1659 and below) use version 10. If you download a cache and it doesn't seem to be loading, check the version of Yuzu you are using compared to the version the cache was built for.
This is where the proves invaluable. Yuzu saves the compiled shader to a cache on your disk after it’s built for the first time. The next time that same visual effect appears, the emulator can instantly load the pre-compiled shader from the cache instead of rebuilding it from scratch. This eliminates stuttering and provides a buttery-smooth experience after the initial compilation is complete.
This is normal behavior. Endure the first few minutes of gameplay, or manually clear the old cache to let yuzu build a clean one tailored to your new driver. 3. Texture Popping and Missing Geometry
: Vulkan handles asynchronous shader compilation much better than OpenGL, especially on AMD and Intel graphics cards.
