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Unity Game Optimization

You're reading from   Unity Game Optimization Enhance and extend the performance of all aspects of your Unity games

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Product type Paperback
Published in Nov 2019
Publisher Packt
ISBN-13 9781838556518
Length 404 pages
Edition 3rd Edition
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Authors (2):
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Dr. Davide Aversa Dr. Davide Aversa
Author Profile Icon Dr. Davide Aversa
Dr. Davide Aversa
Chris Dickinson Chris Dickinson
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Chris Dickinson
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Toc

Table of Contents (15) Chapters Close

Preface 1. Section 1: Base Scripting Optimization
2. Evaluating Performance Problems FREE CHAPTER 3. Scripting Strategies 4. Section 2: Graphical Optimizations
5. The Benefits of Batching 6. Optimizing Your Art Assets 7. Faster Physics 8. Dynamic Graphics 9. Section 3: Advance Optimizations
10. Optimizations for Virtual and Augmented Reality 11. Masterful Memory Management 12. The Data-Oriented Technology Stack 13. Tactical Tips and Tricks 14. Other Books You May Enjoy

Avoiding Find() and SendMessage() at runtime

The SendMessage() method and family of GameObject.Find() methods are notoriously expensive and should be avoided at all costs. The SendMessage() method is about 2,000 times slower than a simple function call, and the cost of the Find() method scales very poorly with scene complexity since it must iterate through every GameObject in the scene. It is sometimes forgivable to call Find() during the initialization of a scene, such as during an Awake() or Start() callback. Even in this case, it should only be used to acquire objects that we know for certain already exist in the scene and for scenes that have only a handful of GameObjects in them. Regardless, using either of these methods for inter-object communication at runtime is likely to generate a very noticeable overhead and, potentially, dropped frames.

Relying on Find() and SendMessage...

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