Creative WebGL Portfolios: Three.js, GSAP, and Custom Shaders

Creative portfolios must make an instant emotional impact. Vibrant Agency achieves this by merging WebGL particle systems with scroll-driven storytelling.

1. Particle System Setup

We create thousands of particles in a Three.js scene that react to mouse movement:

javascript
const particles = new THREE.BufferGeometry();
const positions = new Float32Array(5000 * 3);
for (let i = 0; i < 5000 * 3; i++) {
  positions[i] = (Math.random() - 0.5) * 10;
}
particles.setAttribute('position', new THREE.BufferAttribute(positions, 3));
const material = new THREE.PointsMaterial({ size: 0.02, color: 0x00ff88 });
const points = new THREE.Points(particles, material);
scene.add(points);

2. GSAP ScrollTrigger Animations

Text blocks, images, and 3D elements animate on scroll using GSAP ScrollTrigger, creating a cinematic narrative flow.

3. Custom Fragment Shaders

Fluid cursor trails are rendered using custom GLSL fragment shaders that create organic, flowing color effects in real-time.

Summary

Combining Three.js particle systems with GSAP scroll animations and custom shaders creates a portfolio that wins design awards and attracts premium clients.