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)

Checking if processing of a submitted command buffer has finished

When we use semaphores, the application is not involved in the process of synchronizing the command buffers. It doesn't know when the processing of submitted commands has finished and when other commands start being processed. It all takes place "behind the stage", and is transparent to the application.

But, when we want to know when the processing of a given command buffer has ended, we need to use fences. This way, we can check when a submitted command buffer is fully processed by the device.

How to do it...

  1. Create an un-signaled fence and store it in a variable of type VkFence named fence.
  2. Prepare a batch of command buffers, semaphores to wait on submission and semaphores to signal...