Validation layers

[Josh]

You can control which validation layers get used for debug and release (probably none) builds by modifying Ultra.json:

{
    "project":
    {
        "name": "$PROJECT_NAME",
        "validationLayers":
        {
            "debug":
            [
                "VK_LAYER_LUNARG_standard_validation",
                "VK_LAYER_KHRONOS_validation"
            ],
            "release":
            []
        }
    }
}

I don't know how redundant it is to have both the LunarG and Khronos validation layers. They do reduce framerate quite a lot in debug mode. I'm guessing we probably just need the Khronos one, but I don't know for sure yet.

[reepblue]

Ok, it seems that the Ultra.json file is gonna be used outside the project manager. I was experimenting with loading packages and plugins from a json file, but now it makes sense to just put that information here.

Can you explain the reason for supporting multiple layers? Will one cause problems on one type of hardware? 

[Josh]

There are many validation layers out there, and they can be used for a lot of different things, not just debugging.

I think I started with the LunarG one and then added the Khronos one when it became available.

When the editor re-saves the project file (ultra.json) it loads, inserts, and saves the info, so it should be fine to store your own info there too.