Mesh shaders, introduced back in 2018 as an NVidia Turing and later as an AMD RDNA2 feature, is an evolution of the geometry pipeline which removes a number of fixed function units like the Input Assembler and Tessellator as well as the Vertex shader/Domain Shader/Geometry Shader stages and replaces them with a simpler, programmable pipeline…

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Mesh shaders, introduced in NVidia Turing and AMD RDNA2, enhance the GPU geometry pipeline by replacing several fixed function units and shaders with a more flexible, programmable system. This allows for finer control over geometry processing and culling. Mesh shaders, working with smaller meshlets, can improve rendering efficiency and reduce pipeline bottlenecks. This post explores their performance benefits and potential, showing how they can outperform vertex shaders in specific scenarios.

Meshlets and Mesh Shaders