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 bottom.
This is going to be a quick post to raise awareness to a difficult to track bug with mesh shaders in Vulkan when using HLSL. Hopefully this will save some time to the next poor soul that bumps into this.
Continue reading “Workarounds for issues with mesh shaders + Vulkan + HLSL”