Vulkan

[IntegratedQuantum]

While it probably won't make the game any faster since it's not API bound, I think Vulkan does offer some advantages:

• better tooling (there is a GPU profiler from AMD that only works with Vulkan)
• better platform support: with MoltenVK there is apple support. And Vulkan also supports mobile GPUs, which at the moment would require OpenGL ES
• better error detection with validation layers. OpenGL is really inconsistent with errors and warnings, which appear to be driver dependant.
• Vulkan does provide more consistent performance. For example on my intel laptop the OpenGL driver creates a copy of a given buffer when doing glBufferSubData.
• Vulkan is probably more future-proof at this point.
• Vulkan allows for larger buffers (SSBOs can be up to 4GB instead of 2 GB like in OpenGL)

But all that comes at a heavy development cost.

I heard that this guide should be useful: https://vkguide.dev There is an official documentation now: https://docs.vulkan.org/spec/latest/index.html

Prerequisites:

• #101 would make porting easier

[ghost]

https://github.com/ashpil/moonshine A general purpose ray traced renderer built with Zig + Vulkan

[Argmaster]

There is also https://vulkan.gpuinfo.org/ page which is very handy for querying for how widely are different Vulkan features available.