Learn Unity Shaders from Scratch

Requirements

  • All you need is a copy of Unity, freely available for students.
  • A knowledge of the basics of using Unity is assumed, this is readily available by many online tutorials.
  • No knowledge of shaders is assumed.
  • A knowledge of a programming language would help but is not assumed.

Description

In this course we’re going to look at Unity ShaderLab and the HLSL shading language to create amazing shaders.

Maybe you are

  • a developer struggling to bring to life a particular game feature because it needs a custom shader.
  • a developer who always wanted to create custom shaders but was too scared to start.
  • a developer wanting to add some custom post-processing effects to your 3d renders.

Unity ShaderLab is how you create custom shaders. It comes in 3 flavours, fixed function, vertex-fragment and surface shaders. We won’t be looking at the fixed function route in this course as it is effectively a legacy option and you want to learn modern best practice. The code syntax is based on the C language, but fear not, we will assume you have literally no knowledge of this language at all and we will, as the course title states, learn this from scratch. A shader uses the GPU ( the Graphics Processing Unit) to handle multiple programs at the same time, so it is unbelievably fast.

We will start from really simple examples and progress slowly through each stage of developing a custom shader. You will be able to play with the shader code using Visual Studio, or another code editor if you prefer. You can experiment with different values to see the impact it has on the end result.

Unity shaders are split into vertex shaders and fragment shaders and we will focus initially on the fragment shader, working essentially in a 2d environment. With dozens of shaders in the course resources you will learn the language in gentle stages. Before moving on to use Unity’s surface shader syntax to easily include complex lighting.

Once you’re comfortable with simple shaders we will cover advanced effects such as tessellation, transparency, using the stencil buffer and post-processing.

Creating your own shaders means understanding the HLSL language and that is the aim of the course. You could search for a suitable shader on ShaderToy or ShaderFrog and then try to adapt the code. But without knowing the language you’re going to find that difficult to do. To really be effective you need to know about the  language, shaping functions, tiling and lighting calculations. To do this you will need to follow along with the course and complete the many challenges suggested. At the end you will then be able to create any shader that you can imagine.

As usual there is a 30 day money back guarantee. So you have nothing to lose. Let’s get shading today!

What students say about the course

“Great course. Took this as a refresher to get back into shaders. Everything you need is provided. Both starting scenes for each lecture and also completed ones if you get stuck with code errors. Nice learning curve. Everything is well explained. No long boring slideshows. Also plenty of challenges, which I like and find very useful in assisting your learning. Very clear audio and code. So no problems following along and plenty to take in. Also Nicholas is very helpful with your Q&A’s. Highly recommended.”

“The information presented in this course is fantastic. The tutor has a great personality, and I can’t stress enough how enjoyable he makes this course.”

“It is fantastic. You need a little bit of math to understand it better but with attention and repetition it will be easy to anyone. Thanks a lot professor!”

and what students say about my GLSL Shader course

“A great course! Methodical, step by step explanations not only of the GLSL but also of the general theory behind shaders, usable with any shader system. Essential if you are into computer graphics or generative art. Thank you!”

“I’ve tried to pick up shaders in the past but found it quite difficult. Unlike other resources I’ve found, this course was the course that finally helped me get a much better grasp of glsl. It is well structured and very informative. I would recommend it to anyone looking to pick up glsl.”

Who this course is for:

  • Unity developers who need to go beyond the shaders available on the platform.
  • Developers keen to learn the Cg shading language for other development platforms such as Unreal.


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content from: https://www.udemy.com/course/learn-unity-shaders-from-scratch

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