Rémi Verschelde 54e6338c9b Vulkan: Make validation layers optional ...

They're now disabled by default, and can be enabled with the command line
argument `--vk-layers`.

When enabled, the errors about them being missing are now warnings, as
users were confused and thought this meant Vulkan is broken for them.

Fix crash in `~VulkanContext` when validation layers are disabled (exposed by
this PR since before they could not be disabled without source modification).

Also moved VulkanContext member initializations to header.

Fixes #37102.

2020-10-27 16:19:15 +01:00

3.1 KiB

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