Debugging Vulkan
Enable Validation Logs
Simply install the LunarG SDK (it's fast and easy), then make sure you've got the following environment variables set up in your bashrc file. For example:
export VULKAN_SDK='/path_to_home/VulkanSDK/1.3.216.0/x86_64'
export VK_LAYER_PATH="$VULKAN_SDK/etc/explicit_layer.d"
export PATH="$VULKAN_SDK/bin:$PATH"
As long as you're running a debug build of Filament, you should now see extra debugging spew in your console if there are any errors or performance issues being caught by validation.