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Other platforms, such as consoles or systems relying on an OpenGL rendering backend need to have the shaders pre-compiled or be able to access a Remote Shader Compiler (for development only).īecause the number of possible shader configurations in abstract is huge, the possibilities for a given game need to be calculated into a list, so that they can be pre-compiled and packed into a shader cache.Ī Shader Cache is necessary in any platform in order for the game to run smoothly without noticeable freezes or visual glitches. Since all shader code is written in HLSL and cross compiled to other platforms, shader compilation is only possible on a Windows PC. If a shader is not found in the Shader Cache, it will have to be compiled locally or via a Remote Shader Compiler. This avoids tearing and reduces input latency compared to previous methods.The Shader Cache is a collection of parsed and pre-compiled shaders.ĭuring the play of a level, at runtime, necessary shaders will be requested with all the variables defined, such as lighting configuration and the usage of techniques like fog or transparency. Vulkan also allows us to use a new experimental VSync technique which allows Cemu to use the game's built-in frame-pacing instead. Shader caches work on each game regardless of its region, while pipeline caches are locked to the region of the game that they were generated on. If you're using Vulkan, you will need to download both the shader cache and pipeline cache.

If you're using OpenGL, you will only need to download the shader cache. If another user has previously compiled the shaders, they can upload them for other users to import into Cemu. # Importing shader cachesĪsynchronous shader compilation goes a long way to speed up running games for the first time, however we can also simply download the shaders needed to run each game from the internet. More recent builds can do this in under 1/10th of a second, depending on the CPU. Currently, this feature does not work on macOS at all.Īsynchronous shader compilation in an older, slower Cemu version.

You may need to update your graphics drivers to use this feature.