Constant vulkanalia::vk::NV_FRAGMENT_SHADING_RATE_ENUMS_EXTENSION

pub const NV_FRAGMENT_SHADING_RATE_ENUMS_EXTENSION: [i8; 256];

https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/VK_NV_fragment_shading_rate_enums.html