Nicely spotted actually, in that specific case leaving it blank will get you the exact same result. That's because the enum has VK_COMPONENT_SWIZZLE_IDENTITY =

Nicely spotted actually, in that specific case leaving it blank will get you the exact same result. That's because the enum has VK_COMPONENT_SWIZZLE_IDENTITY = 0, and setting everything to IDENTITY is defined to result in exactly what you expect. (r = r, g = g, ...). You can read the spec here if you want to: https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VkComponentSwizzle.html https://registry.khronos.org/vulkan/specs/1.3-extensions/man... Most things in Vulkan have reasonable defaults, fortunately. Still, it's best to code with the spec open on another monitor.