Cracking the Code: How to Begin with GLSL Shader Programming

Shaders are one of the most fascinating and powerful tools in front-end development, opening up a world of creative possibilities. If you're looking to get started, knowing where to find the right resources is key. Let's take a look at some of the best places to dive into the world of shaders.

What is a shader?

Think of it like painting a canvas - not one thing at a time, but everything at once, still following a series of steps. That's how shaders work. Each pixel on your screen gets a colour based on its position, and the code you write decides what those colours should be.

Here's a simple shader example that paints the whole screen red - every pixel gets the same information. But you're not restricted to this! You can paint based on position, use a texture, or any other input. The possibilities are almost endless.

You can read more below.