Book Image

Vulkan Cookbook

By : Pawel Lapinski
Book Image

Vulkan Cookbook

By: Pawel Lapinski

Overview of this book

Vulkan is the next generation graphics API released by the Khronos group. It is expected to be the successor to OpenGL and OpenGL ES, which it shares some similarities with such as its cross-platform capabilities, programmed pipeline stages, or nomenclature. Vulkan is a low-level API that gives developers much more control over the hardware, but also adds new responsibilities such as explicit memory and resources management. With it, though, Vulkan is expected to be much faster. This book is your guide to understanding Vulkan through a series of recipes. We start off by teaching you how to create instances in Vulkan and choose the device on which operations will be performed. You will then explore more complex topics such as command buffers, resources and memory management, pipelines, GLSL shaders, render passes, and more. Gradually, the book moves on to teach you advanced rendering techniques, how to draw 3D scenes, and how to improve the performance of your applications. By the end of the book, you will be familiar with the latest advanced techniques implemented with the Vulkan API, which can be used on a wide range of platforms.
Table of Contents (13 chapters)

Creating a semaphore

Before we can submit commands and utilize the device's processing power, we need to know how to synchronize operations. Semaphores are one of the primitives used for synchronization. They allow us to coordinate operations submitted to queues, not only within one queue, but also between different queues in one logical device.

Semaphores are used when we submit commands to queues. So before we can use them during the submission of command buffers, we need to create them.

How to do it...

  1. Take the handle of a created logical device. Store the handle in a variable of type VkDevice named logical_device.
  2. Create a variable of type VkSemaphoreCreateInfo named semaphore_create_info. Use the following values to initialize its members:
    • VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO...