[MacPorts] #57005: Add MoltenVK

[MacPorts]

#57005: Add MoltenVK
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  Reporter:  MaddTheSane  |      Owner:  ryandesign
      Type:  request      |     Status:  accepted
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  MoltenVK     |
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Comment (by MaddTheSane):

 I was able to see it work on my own Wine build by playing
 [https://github.com/Novum/vkQuake vkQuake]. Make sure you use the 64-bit
 version: Metal, and thus MotalVK and Vulkan, isn't available for 32-bit
 apps. A simpler (and less flashy) test can be found here:
 https://github.com/skeeto/vulkan-test

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Ticket URL: <https://trac.macports.org/ticket/57005#comment:4>
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