Skip to content

Instantly share code, notes, and snippets.

@llirikkcoder
Created December 16, 2020 19:15
Show Gist options
  • Save llirikkcoder/07210c581a38950a716e8d50818fe2da to your computer and use it in GitHub Desktop.
Save llirikkcoder/07210c581a38950a716e8d50818fe2da to your computer and use it in GitHub Desktop.
WebGL Point Sphere - GSAP 3
var scene = new THREE.Scene();
document.addEventListener( 'mousemove', onMouseMove, false );
var camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 0.1, 1000 );
var mouseX;
var mouseY;
var renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
window.addEventListener("resize", function() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
});
var distance = Math.min(200, window.innerWidth / 4);
var geometry = new THREE.Geometry();
for (var i = 0; i < 1600; i++) {
var vertex = new THREE.Vector3();
var theta = THREE.Math.randFloatSpread(360);
var phi = THREE.Math.randFloatSpread(360);
vertex.x = distance * Math.sin(theta) * Math.cos(phi);
vertex.y = distance * Math.sin(theta) * Math.sin(phi);
vertex.z = distance * Math.cos(theta);
geometry.vertices.push(vertex);
}
var particles = new THREE.Points(geometry, new THREE.PointsMaterial({color: 0xff44ff, size: 2}));
particles.boundingSphere = 50;
var renderingParent = new THREE.Group();
renderingParent.add(particles);
var resizeContainer = new THREE.Group();
resizeContainer.add(renderingParent);
scene.add(resizeContainer);
camera.position.z = 400;
var animate = function () {
requestAnimationFrame( animate );
renderer.render( scene, camera );
};
var myTween;
function onMouseMove(event) {
if(myTween)
myTween.kill();
mouseX = ( event.clientX / window.innerWidth ) * 2 - 1;
mouseY = - ( event.clientY / window.innerHeight ) * 2 + 1;
myTween = gsap.to(particles.rotation, {duration: 0.1, x: mouseY*-1, y: mouseX});
//particles.rotation.x = mouseY*-1;
//particles.rotation.y = mouseX;
}
animate();
// Scaling animation
var animProps = {scale: 1, xRot: 0, yRot: 0};
gsap.to(animProps, {duration: 10, scale: 1.3, repeat: -1, yoyo: true, ease: "sine", onUpdate: function() {
renderingParent.scale.set(animProps.scale,animProps.scale,animProps.scale);
}});
gsap.to(animProps, {duration: 120, xRot: Math.PI * 2, yRot: Math.PI * 4, repeat: -1, yoyo: true, ease: "none", onUpdate: function() {
renderingParent.rotation.set(animProps.xRot,animProps.yRot,0);
}});
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/108/three.min.js"></script>
<script src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/16327/gsap-latest-beta.min.js"></script>
body { margin: 0; }
canvas { width: 100%; height: 100% }
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment