I would imagine the details are platform specific. I doubt that anyone is using OpenGL, as WebGPU is intended to bring the benefits of the Vulkan/Metal/DX12 ge

I would imagine the details are platform specific. I doubt that anyone is using OpenGL, as WebGPU is intended to bring the benefits of the Vulkan/Metal/DX12 generation of graphics APIs to the web. On platforms supporting Vulkan, WebGPU implementations are probably compiling WGSL to SPIRV before handing it to the driver, and a DX12 implementation would probably compile it to DXIL. I'm not aware of any intermediate representation on Apple platforms, so it's probably transpiled to MSL there.