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)

Preparing an orthographic projection matrix

Orthographic projection is another type of operation that transforms vertices from their local coordinate system to a clip space. But opposed to a perspective projection, it doesn't take a perspective division into account (doesn't simulate the way we perceive our surroundings). But similarly to a perspective projection, it is also represented by a 4x4 matrix, which we need to create in order to use this type of projection.

How to do it...

  1. Create two variables of type float named left_plane and right_plane, and initialize them with the positions (on the x axis) of left and right clipping planes, respectively.
  2. Prepare two variables of type float named bottom_plane and top_plane. Initialize them with positions...