You're reading from The Modern Vulkan Cookbook

Product typeBook

Published inApr 2024

Reading LevelN/a

PublisherPackt

ISBN-139781803239989

Edition1st Edition

Languages

C++

Concepts

Game Design

Authors (2):

Preetish Kakkar

Mauricio Maurer

View More author details

Implementing screen space ambient occlusion

Screen space ambient occlusion (SSAO) can be used to approximate the effect of ambient occlusion in real time. Ambient occlusion is a shading and rendering method used to calculate how exposed each point in a scene is to ambient lighting. This technique adds more realistic shadows where two surfaces or objects meet, or where an object blocks light from reaching another object.

In this recipe, you will learn how to implement SSAO to realistically estimate ambient occlusion in real time. You will grasp how to use this shading and rendering technique to calculate the exposure of each point in a scene to ambient lighting.

Getting ready

The algorithm described in this recipe calculates the difference between the depth of a pixel and its neighbors (samples) in a circular fashion. If a sample is closer to the camera than the central pixel, it contributes to the occlusion factor, making the pixel darker.

A depiction of the algorithm is...

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The Modern Vulkan Cookbook

Published in: Apr 2024Publisher: PacktISBN-13: 9781803239989

Authors (2)

Preetish Kakkar

Preetish Kakkar is a senior computer graphics engineer with Adobe and works on the rendering engine that powers products such as Aero, Stager, and After Effects. He has worked at Microsoft, MathWorks, and Stryker, where he co-authored various rendering engines as well as using other engines such as Unreal and Unity. He has more than 15 years of software development experience along with 10+ years in 3D graphics, scientific visualization, and medical imaging.
Read more about Preetish Kakkar

Mauricio Maurer

Mauricio Maurer is a computer graphics engineer with nearly 20 years of experience working with 2D and 3D rendering, computational geometry, and rasterization in the fields of scientific visualization, CAD/CAM, and social networking. He is currently a graphics software engineer at Meta, helping to develop the next generation of AR/VR devices. Mauricio holds two master's degrees in computer science with a specialization in computer graphics from SUNY Stony Brook, NY, and the Federal University of Parana, Brazil.
Read more about Mauricio Maurer

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