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Mesa (computer graphics)
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==== Tungsten Graphics Shader Infrastructure ==== Tungsten Graphics Shader Infrastructure ([[TGSI]]) is an [[Intermediate representation]] like [[LLVM Intermediate Representation]] or the new [[Standard Portable Intermediate Representation]] (SPIR) to be used by the [[Vulkan API]] and OpenCL 2.1. Shaders written in [[OpenGL Shading Language]] are to be translated/compiled into TGSI, then optimizations are made, and then the TGSI shaders are being compiled into shaders for the [[instruction set]] of the used GPU. NIR is the new Layer representation in Mesa with full SPIR-V support and since 2019 main development area of all newer drivers with OpenGL 4.6 support.
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