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)

Resetting fences

Semaphores are automatically reset. But when a fence becomes signaled, it is the application's responsibility to reset the fence back to the un-signaled state.

How to do it...

  1. Store the handle of a created logical device in a variable of type VkDevice named logical_device.
  1. Create a vector variable named fences. It should contain elements of type VkFence. In the variable, store the handles of all fences that should be reset.
  2. Call vkResetFences( logical_device, static_cast<uint32_t>(fences.size()), &fences[0] ) and provide the logical_device variable, the number of elements in the fences vector and a pointer to the first element of the fences vector.
  3. Make sure the function succeeded by checking if the value returned by the call was...