Build a self-contained, performant Canvas 2D visual effect in a single React + TypeScript component.
Effect: "Depth Tunnel".
Description: A perspective recess illusion. Concentric receding layers form a 3D tunnel that the cursor steers via parallax. Pure CSS transforms, five tunnel styles.
Current settings: variant = Radial, depth = 60, color = Single, hue = 280, second hue = 200.
Tags: 3d, css, depth, tunnel, parallax, perspective.
Requirements:
- Use requestAnimationFrame with a delta-time (dt) step, clamped to avoid jumps on tab switches.
- Render crisply: fully clear the canvas every frame (clearRect). Do NOT fake motion blur by painting a translucent background each frame, because that causes permanent 8-bit "ghost" burn-in. If you want trails, store each particle's recent positions and draw them as an explicit fading tail.
- If many short-lived particles are spawned, use an object pool (pre-allocate, reuse, swap-remove on death) to avoid GC pauses.
- Scale the backing store by devicePixelRatio (cap ~2) and handle resize.
- Pause when the tab is hidden or the canvas is off-screen; respect prefers-reduced-motion.
- Expose the listed settings as adjustable props/controls.
Source
Custom-components (DepthCard)
DepthCard/depthcard-demo/src/styles/variants.css