Solving the issue that "VK_LAYER_KHRONOS_validation" does not appear in the enumerated InstanceLayer

Issue

Though the latest graphics driver is installed, vkEnumerateInstanceLayerProperties does not return "VK_LAYER_KHRONOS_validation", and the layer is not available.
Instead, "VK_LAYER_LUNARG_standard_validation" is available, but it should be already deprecated in Vulkan 1.2.

My environment

Solution

1. Start "(VulkanSDK Path)/VulkanSDK/1.2.141.2/Tools/vkconfig.exe"
2. Open "Layer Manager" tab. This pane shows the available layers. It would look like this:

f:id:sle:20200725151218p:plain
vulkan layer manager

3. Tick "Use custom layer paths" in "Layer Locations" (It enables the custom setting of layers by a json file, probably.)
4. Click "Add" in "Layer Locaations".
5. Select "(VulkanSDK Path)/VulkanSDK/1.2.141.2/Bin" by the dialog. (This makes Vulkan recognize "VkLayer_khronos_validation.json" in the directory.) Layers are added and it would look like this:
f:id:sle:20200725152423p:plain
6. Move "Khronos: validation" from "Unset Explicit Layers" to "Application Side".
7. Click "Save"
8. Done. You can check that the layer became available by "Vulkan Info" (in the start menu):

Layers: count = 10
==================
VK_LAYER_KHRONOS_validation (Khronos Validation Layer) Vulkan version 1.2.141, layer version 1:
        Layer Extensions: count = 3
                VK_EXT_debug_report        : extension revision 9
                VK_EXT_debug_utils         : extension revision 1
                VK_EXT_validation_features : extension revision 2
        Devices: count = 2
                GPU id = 0 (GeForce GTX 1050 Ti)
                Layer-Device Extensions: count = 3
                        VK_EXT_debug_marker     : extension revision 4
                        VK_EXT_tooling_info     : extension revision 1
                        VK_EXT_validation_cache : extension revision 1

                GPU id = 1 (Intel(R) HD Graphics 630)
                Layer-Device Extensions: count = 3
                        VK_EXT_debug_marker     : extension revision 4
                        VK_EXT_tooling_info     : extension revision 1
                        VK_EXT_validation_cache : extension revision 1

VK_LAYER_LUNARG_api_dump (LunarG API dump layer) Vulkan version 1.2.141, layer version 2:
        Layer Extensions: count = 0
        Devices: count = 2
                GPU id = 0 (GeForce GTX 1050 Ti)
                Layer-Device Extensions: count = 1
                        VK_EXT_tooling_info : extension revision 1

                GPU id = 1 (Intel(R) HD Graphics 630)
                Layer-Device Extensions: count = 1
                        VK_EXT_tooling_info : extension revision 1

References