Shaders for Creative Coding: Step and Smoothstep in WebGL

Creating sharp lines, soft gradients, and smooth transitions is a fundamental skill in shader programming, yet standard programming logic does not work the same way inside a GPU. To build high-performance visual effects on the web, you need to master mathematical interpolation functions rather than traditional conditional statements. This course guides you through the core concepts of GLSL shaders, focusing on step and smoothstep functions to control colors, shapes, and edge blending directly on the web canvas. What you'll learn: - Understand the foundational math and syntax behind step and smoothstep functions in GLSL. - Create clean, feathered edges and soft gradients without relying on external image assets. - Implement performance-friendly conditional logic in shaders without using resource-heavy if-statements. - Apply coordinate normalization techniques to position and scale visual elements on a Canvas. - Combine multiple step functions to design complex geometric patterns and custom transitions. - Practice debugging common shader rendering issues and optimizing code for modern web browsers. You will start with the absolute basics of shader architecture and WebGL canvas setup before writing your first GLSL code. From there, you will progress through structured text-based explanations and code analysis that demonstrate how to manipulate pixels mathematically to render shapes and smooth transitions. This course is designed for web developers, creative coders, and digital artists who are new to shaders and want to build a solid foundation in GLSL math, with no prior shader experience required. Start reading today to unlock the power of GPU-accelerated creative coding.