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Metal 3 (in 2022) added mesh shaders, which can be used to emulate geometry shaders.

We (CodeWeavers) are doing this in (a fork of) MoltenVK, and Apple’s D3DMetal is as well.

Hi, is there a plan to submit these changes back up to MoltenVK?

We would still like the changes to be upstream but they may need more polish, and it spawned a conversation about the division of responsibilities between SPIRV-Cross and MoltenVK:

https://github.com/KhronosGroup/SPIRV-Cross/pull/2200 https://github.com/KhronosGroup/SPIRV-Cross/pull/2204

Thanks for your efforts in this space!

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