AnKi always had its shaders written in GLSL because it started as an OpenGL engine. Recently I decided to start rewriting them from GLSL to HLSL with one of the main motivations be

TL;DR: If using per-primitive in/out in mesh shaders in Vulkan and in HLSL/DXC you need to manually decorate variables and struct members using SPIR-V intrinsics. See how at the bo