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Unity 2021 Shaders and Effects Cookbook

Unity 2021 Shaders and Effects Cookbook

By : John P. Doran
4 (12)
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Unity 2021 Shaders and Effects Cookbook

Unity 2021 Shaders and Effects Cookbook

4 (12)
By: John P. Doran

Overview of this book

Shaders enable you to create powerful visuals for your game projects. However, creating shaders for your games can be notoriously challenging with various factors such as complex mathematics standing in the way of attaining the level of realism you crave for your shaders. The Unity 2021 Shaders and Effects Cookbook helps you overcome that with a recipe-based approach to creating shaders using Unity. This fourth edition is updated and enhanced using Unity 2021 features and tools covering Unity's new way of creating particle effects with the VFX Graph. You'll learn how to use VFX Graph for advanced shader development. The book also features updated recipes for using Shader Graph to create 2D and 3D elements. You'll cover everything you need to know about vectors, how they can be used to construct lighting, and how to use textures to create complex effects without the heavy math. You'll also understand how to use the visual-based Shader Graph for creating shaders without any code. By the end of this Unity book, you'll have developed a set of shaders that you can use in your Unity 3D games and be able to accomplish new effects and address the performance needs of your Unity game development projects. So, let's get started!
Table of Contents (16 chapters)
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Profiling your shaders

Now that we know how we can reduce the overhead that our shaders might take, let's take a look at how to find problematic shaders in a scene where you might have a lot of shaders or a ton of objects, shaders, and scripts all running at the same time. Finding a single object or shader among a whole game can be quite daunting, but Unity provides us with its built-in Profiler. This allows us to see, on a frame-by-frame basis, what is happening in the game, and each item that is being used by the GPU and CPU.

Using Profiler, we can isolate items such as shaders, geometry, and general rendering items using its interface to create blocks of profiling jobs. We can filter out items until we are looking at the performance of just a single object. This lets us see the effects that the object has on the CPU and GPU while it is performing its functions at runtime.

Let's take a look through the different sections of Profiler and learn how to debug our scenes...

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