Description: An external semaphore in Vulkan is a synchronization mechanism that is created outside the Vulkan context but can be used within it. Its main function is to coordinate access to shared resources between different parts of a system, such as between the CPU and GPU, or between different execution threads. Unlike internal semaphores that are fully managed by Vulkan, external semaphores allow for greater flexibility as they are created and managed by other APIs or systems. This is particularly useful in applications that require integration with other system components, such as graphics applications or general computing environments. External semaphores are essential for ensuring that rendering and computation operations occur in the correct order, avoiding race conditions and ensuring data consistency. Their use has become increasingly relevant in the development of modern applications, where efficiency and synchronization are crucial for overall system performance.