Game Development
Reader small image

You're reading from  Game Physics Cookbook

Product typeBook
Published inMar 2017
Reading LevelIntermediate
PublisherPackt
ISBN-139781787123663
Edition1st Edition
Languages
C++
Tools
Unity
Concepts
Game Design
Right arrow
Author (1)
Gabor Szauer
Gabor Szauer
author image
Gabor Szauer

Gabor Szauer has been making games since 2010. He graduated from Full Sail University in 2010 with a bachelor's degree in game development. Gabor maintains an active Twitter presence, and maintains a programming-oriented game development blog. Gabor's previously published books are Game Physics Programming Cookbook and Lua Quick Start Guide, both published by Packt.
Read more about Gabor Szauer

Right arrow

AABB-to-OBB

Testing if an AABB and an OBB overlap can be done using the Separating Axis Theorem (SAT). This test will require a total of 15 axes to be tested. Chapter 5, 2D Collisions, provides an in-depth explanation of how the SAT works. The 15 axes of potential separation are:

  • The three axes of the AABB (world X, Y, and Z)

  • The three axes of the OBB (the OBB's orientation matrix)

  • 9 axes come from the cross-products of the three axes of the AABB and the three axes of the OBB. We take the cross product of every combination of these axes. Lists these nine combinations:

    AABB.XAxis x OBB.XAxis

    AABB.YAxis x OBB.XAxis

    AABB.ZAxis x OBB.XAxis

    AABB.XAxis x OBB.YAxis

    AABB.YAxis x OBB.YAxis

    AABB.ZAxis x OBB.YAxis

    AABB.XAxis x OBB.ZAxis

    AABB.YAxis x OBB.ZAxis

    AABB.ZAxis x OBB.ZAxis

Remember, the two shapes only overlap if all 15 axes overlap. If there is a single axis of separation, no intersection can happen.

Getting ready

Because this is our first 3D SAT test, there is some groundwork to cover...

lock icon
The rest of the page is locked
Previous Page
Chapter 18 of 27, Page 8
Next Page
You have been reading a chapter from
Game Physics Cookbook
Published in: Mar 2017Publisher: PacktISBN-13: 9781787123663
© 2017 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Gabor Szauer

Gabor Szauer has been making games since 2010. He graduated from Full Sail University in 2010 with a bachelor's degree in game development. Gabor maintains an active Twitter presence, and maintains a programming-oriented game development blog. Gabor's previously published books are Game Physics Programming Cookbook and Lua Quick Start Guide, both published by Packt.
Read more about Gabor Szauer

Personalised recommendations for you

Based on your interests and search pattern

The Essential Guide to Creating Multiplayer Games with Godot 4.0

The Essential Guide to Creating Multiplayer Games with Godot 4.0

This Essential Guide to Creating Multiplayer Games with Godot 4.0 teaches you how to use the high-level network API with concrete use cases. You’ll learn the fundamentals of multiplayer games and advanced techniques to improve players’ experience.

BookDec 2023326 pages5
Creating an RTS Game in Unity 2023

Creating an RTS Game in Unity 2023

A practical guide packed with essential concepts and techniques of game development, best coding practices for C# programming language, the most used design patterns to build high-quality projects, and techniques on implementing gameplay features to develop an RTS game using Unity

BookOct 2023548 pages
Unity Cookbook

Unity Cookbook

Unlock the limitless potential of Unity 2023 game development with this new edition. Dive into over 140 expertly crafted recipes that empower you to pioneer VR and AR experiences, conquer mobile game development, and master audio techniques, all while building a strong foundation in Unity's latest tools and features. Elevate your skills, captivate your audience, and craft your gaming masterpiece with this essential resource.

BookNov 2023780 pages
Enhancing Virtual Reality Experiences with Unity 2022

Enhancing Virtual Reality Experiences with Unity 2022

Enhancing Virtual Reality Experiences with Unity 2022 guides you through the latest features of Unity. Starting with the basics of understanding virtual reality, you’ll systematically build the technical skills for building VR experiences in Unity, and finally implement everything you’ve learned in real-world projects.

BookNov 2023566 pages
Photorealistic Materials and Textures in Blender Cycles

Photorealistic Materials and Textures in Blender Cycles

This comprehensive, beginner-friendly, AI-assisted, step-by-step guide is carefully tailored to guide you through the journey of progressing from a beginner to an expert artist. The book helps you to master materials, procedural textures, lighting, and rendering in Blender’s powerful Cycles render engine.

BookOct 2023394 pages
XR Development with Unity

XR Development with Unity

This practical guide helps you create immersive VR, AR, and MR experiences using Unity 2021.3 or later versions. You’ll learn to add physics, animations, teleportation, sound, effects, and hand-tracking to XR scenes and deploy them on VR headsets, simulators, and mobile devices—all that you need to create interactive XR projects in Unity is here.

BookNov 2023284 pages2
Unreal Engine 5 - The Intermediate Course

Unreal Engine 5 - The Intermediate Course

Elevate your game design journey with "Unreal Engine 5: The Intermediate Course." Dive into detailed studies of Materials and Textures, Landscapes and Open Worlds, Skeletal Meshes and Animations, and advanced Blueprint techniques. Transform your basic knowledge into professional-level expertise in Unreal Engine 5.

VideoDec 202318 hours 55 minutes5
Learn Unity Game Development - Build Six Games with Unity 2023

Learn Unity Game Development - Build Six Games with Unity 2023

Get ready to dive into the exciting world of Unity game development and C# scripting! With a hands-on approach, you will craft a variety of thrilling 2D and 3D games using Unity and C#. Uncover the art of building and exporting games to the Android mobile platform. This course is tailor-made for someone who wants to learn Unity and C# through real-world projects.

VideoSep 202312 hours 3 minutes
Learn Intermediate C# Scripting for Unity Game Development

Learn Intermediate C# Scripting for Unity Game Development

Prepare to immerse yourself in the thrilling realm of Unity game development and C# scripting! If you have already acquired the fundamentals of C# scripting with Unity and are eager to elevate your skills to the next tier, then you have found the ideal Intermediate C# Scripting Course. This course is custom-crafted for individuals seeking to master Unity and C# by working on practical, real-world projects.

VideoOct 20238 hours 6 minutes
Low Poly Modeling for Absolute Beginners

Low Poly Modeling for Absolute Beginners

Immerse yourself in the mesmerizing realm of low poly modeling with Blender! Unleash your boundless creativity as you sculpt stunning 3D designs. Master Blender’s tools to create captivating low poly trees, rocks, and more. Elevate your artistry with powerful modifiers and bring your unique vision to life in the world of 3D.

VideoAug 202314 hours 37 minutes5