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)

Allocating descriptor sets

Descriptor sets gather shader resources (descriptors) in one container object. Its contents, types, and number of resources are defined by a descriptor set layout; storage is taken from pools, from which we can allocate descriptor sets.

How to do it...

  1. Take the logical device and store its handle in a variable of type VkDevice named logical_device.
  2. Prepare a descriptor pool from which descriptor sets should be allocated. Use the pool's handle to initialize a variable of type VkDescriptorPool named descriptor_pool.
  3. Create a variable of type std::vector<VkDescriptorSetLayout> named descriptor_set_layouts. For each descriptor set that should be allocated from the pool, add a handle of a descriptor set layout that defines the structure...