Extended Reality with OpenXR
Similar to what Vulkan is for graphics, OpenXR, an integral part of the world of Extended Reality (XR), is an API that serves as a powerful tool for implementing XR applications. This chapter provides an overview of OpenXR and how to use it in conjunction with Vulkan. We start with a basic introduction to OpenXR, explaining its role and significance in XR applications, and follow with recipes that may be used to improve your XR applications, such as single pass multiview rendering, a technique that optimizes the rendering of stereo scenes. The chapter further expands into the realm of foveated rendering, a method that significantly bolsters Frames Per Second (FPS) by rendering different sections of the screen at diverse resolutions. We delve into the implementation of this technique using the fragment shading rate feature of the Vulkan extension, providing you with a practical understanding of its application. Lastly, we delve into the use of half floats...
