Shader Canvas

Heroes 49

About

A WebGL fragment-shader background that reads its colours from CSS variables, follows the pointer, pauses off-screen or in hidden tabs, and falls back to a static CSS gradient when WebGL is unavailable or the shader fails to compile.

Built with React and Tailwind. Copy the prompt and paste it into Claude Code, Cursor or Lovable: your agent adds Shader Canvas to your project and fits it to your theme.

Code

How Shader Canvas is used: the demo's code. The component's own source comes with a free account.

Usage.tsx

import { ShaderCanvas } from "@/components/ui/shader-canvas";

export default function ShaderCanvasDemo() {
  return (
    <div className="relative h-screen w-full overflow-hidden bg-[var(--color-surface)] text-[var(--color-ink)]">
      <ShaderCanvas
        label="Animated gradient background"
        className="absolute inset-0 h-full w-full"
      >
        <div className="absolute inset-x-0 bottom-0 p-8">
          <p className="text-xs font-medium uppercase tracking-wide opacity-70">
            Shader background
          </p>
          <p className="mt-1 max-w-md text-lg font-semibold">
            A WebGL fragment shader that follows your accent colour, theme and
            pointer.
          </p>
        </div>
      </ShaderCanvas>
    </div>
  );
}