The purpose of these files is to allow Filament developers to avoid installing the LunarG SDK. However, to enable validation you must install the SDK.

Enabling validation on macOS

If you wish to enable validation or use a newer version of MoltenVK than what is included in the Filament repo, please do the following.

Download the latest tarball from https://vulkan.lunarg.com/sdk/home
Unpack the tarball and run ./install_vulkan.py
- If you see a complaint about /usr/local/lib/cmake, do a force install.
- It might complain about permissions, in which case you could do sudo chown -R $(whoami) /usr/local/bin.
To set environment variables such as VK_ICD_FILENAMES etc, do source MY_SDK/setup-env.sh.
If you see a dialog like "Apple cannot check it for malicious software..." then you might need enable the dylib by ctrl-clicking it in Finder, clicking open, then clicking open again.