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Lua Game Development Cookbook

You're reading from   Lua Game Development Cookbook Over 70 recipes that will help you master the elements and best practices required to build a modern game engine using Lua

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Product type Paperback
Published in Jul 2015
Publisher
ISBN-13 9781849515504
Length 360 pages
Edition 1st Edition
Languages
Tools
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Author (1):
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Mário Kašuba Mário Kašuba
Author Profile Icon Mário Kašuba
Mário Kašuba
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Table of Contents (16) Chapters Close

Lua Game Development Cookbook
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
1. Basics of the Game Engine FREE CHAPTER 2. Events 3. Graphics – Common Methods 4. Graphics – Legacy Method with OpenGL 1.x–2.1 5. Graphics – Modern Method with OpenGL 3.0+ 6. The User Interface 7. Physics and Game Mechanics 8. Artificial Intelligence 9. Sounds and Networking Index

Applying highlights and shadows to the scene


This recipe will deal with per-pixel lighting and simple shadowing. It will allow you to apply one or more lights in the 3D scene. There are two types of light sources: directional and positional light. Directional light doesn't have a position and it's used mostly for daylight. Positional light has a source at a certain position. This type of light can be divided to omnidirectional and spotlight. Omnidirectional light is used mostly with light bulbs. Spotlight is often used with reflectors. Light intensity decreases with increasing distance from the light source.

This recipe will use simple shadowing. This means that surfaces that aren't directly facing the light source will be in the shadow. However, this doesn't include real shadow casting as this is a more advanced topic that's beyond the scope of this book.

Getting ready

Before staring, you'll need to set up the camera position, object state in a scene, light sources, and materials. The camera...

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