Getting started with WebGL shaders in JavaScript

Shaders can make a flat interface feel alive. The trick is restraint: use them to create atmosphere and focus, then let the content remain readable.

Think in fields, not images

A fragment shader calculates color for every pixel. Once that idea clicks, gradients, noise, distortion, and fluid motion become composable ingredients rather than mysterious effects.

GLSLCopy
vec3 color = mix(a, b, smoothstep(0.0, 1.0, uv.x));\ngl_FragColor = vec4(color, 1.0);

• Keep shader canvases contained to specific visual moments.
• Lower intensity behind body text and controls.
• Always test motion on low-power devices.

Used well, WebGL becomes part of the brand system: a moving texture that supports the page rather than competing with it.