Any instructions on setting up for MacOS

[rongcuid]

I am trying to make my code work on Mac, but there are some additional steps:

1. Detect if portability enumeration layer is present. If so, enable it and the portability enumeration flag
2. Allow portability devices

An additional issue is that LWJGL bundles MoltenVK by default, which does not contain any validation layer. I added -Dorg.lwjgl.vulkan.libname=/opt/homebrew/Cellar/vulkan-loader/1.3.257/lib/libvulkan.1.3.257.dylib to make it use system vulkan loader, but I still can't enable validation layer, getting errors like:

09:12:00.026 [ERROR] - [eng.graph.vk.Instance$Companion] - VkDebugUtilsCallback, dlopen(libVkLayer_khronos_validation.dylib, 0x0005): tried: 'libVkLayer_khronos_validation.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OSlibVkLayer_khronos_validation.dylib' (no such file), '/Library/Java/JavaVirtualMachines/jdk-17.0.4.1.jdk/Contents/Home/bin/./libVkLayer_khronos_validation.dylib' (no such file), '/Library/Java/JavaVirtualMachines/jdk-17.0.4.1.jdk/Contents/Home/bin/../lib/libVkLayer_khronos_validation.dylib' (no such file), '/usr/lib/libVkLayer_khronos_validation.dylib' (no s
09:12:00.026 [ERROR] - [eng.graph.vk.Instance$Companion] - VkDebugUtilsCallback, Requested layer "VK_LAYER_KHRONOS_validation" failed to load!
Exception in thread "main" java.lang.RuntimeException: Error creating instance: -6

However, it seems like at least part of the validation is working... otherwise I wouldn't even see these message. I'd love to have some guideline of setting up on Mac

[lwjglgamedev]

Hi,

No Mac here, so just guessing, maybe you could try to add a symbolic link in any ofther dirs listed about to the library (wthout the version)?

[rongcuid]

I changed to the LunarG SDK and it seems to work. I suspect it is because homebrew installs two different versions of vulkan.

I suggest adding the handling of portability subset in the initialization code, though

[lwjglgamedev]

Glad to hear that. You need Lunar SDK also in other platforms to use validation layers. Could you please describe the missing steps you needed to perform in odrer t omake it work? I do not get what you mean by hombrew. If you can helpf me in describening the list of steps iI can include them

[rongcuid]

I have not finished converting yet (just finished porting the Instance, not device), and I am using Kotlin instead of Java. I also break down the instance creation process a bit more than the provided code, but I can show you the steps

[rongcuid]

Basically, if the instance supports VK_KHR_portability_enumeration (or VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME), you need to enable this extension as well as the flag VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR during instance creation. Devices that don't have portability subset would not have this extension available.

[rongcuid]

I think that's all it requires

[rongcuid]

An additional thing is when creating device, if physical device contains VK_KHR_portability_subset, this extension must be enabled

[lwjglgamedev]

Can you check if this class fixes the issue with the instance Creation?
Instance.zip

[lwjglgamedev]

Sorry, use this version instead, an please paste the value of os name logged.
Instance.zip

[lwjglgamedev]

Just uploaded a fix-. If you see something that does not work, please fill a bug. Thanks for reporting this.