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HTML 

              
                <div class="section section-00"></div>
<div class="section section-01"></div>
<div class="section section-02"></div>
<div class="section"></div>
!

CSS 

              
                body{margin: 0; padding: 0;}

canvas{display: block; width: 100%; height: 100vh; position: fixed; top: 0; left: 0; z-index: -1;}

.section{display: block; width: 100%; height: 100vh; border-bottom: 1px solid rgba(0,0,0,0.8);}
!

JS 

              
                	gsap.registerPlugin(ScrollTrigger);

		var scene = new THREE.Scene();
		var gltfLoader = new THREE.GLTFLoader();

		var camera = new THREE.PerspectiveCamera(50, window.innerWidth/window.innerHeight, 0.1, 2000);
		//camera.position.z = 10;
		camera.position.set(0,0,20);
		camera.up = new THREE.Vector3(0,0,0);
		camera.lookAt(new THREE.Vector3(0,0,0));

		var renderCalls = [];
		function render () {
		  requestAnimationFrame( render );
		  renderCalls.forEach((callback)=>{ callback(); });
		}
		render();

		var renderer = new THREE.WebGLRenderer({antialias: true});
		renderer.setClearColor("#e5e5e5");
		renderer.setSize(window.innerWidth,window.innerHeight);

		document.body.appendChild(renderer.domElement);

		window.addEventListener('resize', () => {
			renderer.setSize(window.innerWidth,window.innerHeight);
			camera.aspect = window.innerWidth,window.innerHeight;
			camera.updateProjectionMatrix();
		});


		window.addEventListener( 'resize', function () {
		  camera.aspect = window.innerWidth / window.innerHeight;
		  camera.updateProjectionMatrix();
		  renderer.setSize( window.innerWidth, window.innerHeight );
		}, false );


		var geometry = new THREE.BoxGeometry(1, 1, 1);
		var material = new THREE.MeshLambertMaterial({color: 0xFFCC00});

		var meshtest = new THREE.Mesh(geometry, material);
		meshtest.position.set(0, 0, 1);
		meshtest.scale.set(0.3, 0.3, 0.3);

		var mesh1 = new THREE.Mesh(geometry, material);
		mesh1.position.set(0, 0, 0);

		var mesh2 = new THREE.Mesh(geometry, material);
		mesh2.position.set(0, 0, 0);

		var mesh3 = new THREE.Mesh(geometry, material);
		mesh3.position.set(0, 0, 0);

		var mesh4 = new THREE.Mesh(geometry, material);
		mesh4.position.set(0, 0, 0);

		var mesh5 = new THREE.Mesh(geometry, material);
		mesh5.position.set(0, 0, 0);

		var mesh6 = new THREE.Mesh(geometry, material);
		mesh6.position.set(0, 0, 0);

		var mesh7 = new THREE.Mesh(geometry, material);
		mesh7.position.set(0, 0, 0);

		var mesh8 = new THREE.Mesh(geometry, material);
		mesh8.position.set(0, 0, 0);

		var mesh9 = new THREE.Mesh(geometry, material);
		mesh9.position.set(0, 0, 0);

		var mesh10 = new THREE.Mesh(geometry, material);
		mesh10.position.set(0, 0, 0);

		var mesh11 = new THREE.Mesh(geometry, material);
		mesh11.position.set(0, 0, 0);

		var mesh12 = new THREE.Mesh(geometry, material);
		mesh12.position.set(0, 0, 0);

		var mesh13 = new THREE.Mesh(geometry, material);
		mesh13.position.set(0, 0, 0);

		var mesh14 = new THREE.Mesh(geometry, material);
		mesh14.position.set(0, 0, 0);

		var mesh15 = new THREE.Mesh(geometry, material);
		mesh15.position.set(0, 0, 0);

		var mesh16 = new THREE.Mesh(geometry, material);
		mesh16.position.set(0, 0, 0);

		var phdgroup = new THREE.Group();
		phdgroup.add(meshtest);
		phdgroup.add(mesh1);
		phdgroup.add(mesh2);
		phdgroup.add(mesh3);
		phdgroup.add(mesh4);
		phdgroup.add(mesh5);
		phdgroup.add(mesh6);
		phdgroup.add(mesh7);
		phdgroup.add(mesh8);
		phdgroup.add(mesh9);
		phdgroup.add(mesh10);
		phdgroup.add(mesh11);
		phdgroup.add(mesh12);
		phdgroup.add(mesh13);
		phdgroup.add(mesh14);
		phdgroup.add(mesh15);
		phdgroup.add(mesh16);
		phdgroup.rotation.set(1.57, -1.57, 0);
		phdgroup.scale.set(10, 10, 10);
		scene.add(phdgroup);

		var light = new THREE.PointLight(0xFFFFFF, 1, 500);
		light.position.set(10,0,10);
		scene.add(light);

		var render = function() {
			requestAnimationFrame(render);
			renderer.render(scene, camera);
		}
		render();

  		// 		// GSAP Timeline
		var timeline01 = gsap.timeline();

		// Animation Step 01 (.section-00)
		timeline01.to(this.phdgroup.rotation, {x: 0, y: 0,
			scrollTrigger: {
       	trigger: '.section-00',
        start: 'top',
        scrub: true,
        end: 'bottom',
        markers: true
	    }
		});
		timeline01.to(this.phdgroup.scale, {x: 1, y: 1, z: 1, scrollTrigger: {trigger: '.section-00', start: 'top', scrub: true, end: 'bottom', markers: true} });

		// Animation Step 01 (.section-01)
		timeline01.to(this.phdgroup.rotation, {x: -0.75, y: 0, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.phdgroup.scale, {x: 2, y: 2, z: 2, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh1.position, {x: -3, y: -3, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh2.position, {x: -3, y: -1, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh3.position, {x: -3, y: 1, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh4.position, {x: -3, y: 3, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh5.position, {x: -1, y: -3, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh6.position, {x: -1, y: -1, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh7.position, {x: -1, y: 1, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh8.position, {x: -1, y: 3, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh9.position, {x: 1, y: -3, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh10.position, {x: 1, y: -1, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh11.position, {x: 1, y: 1, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh12.position, {x: 1, y: 3, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh13.position, {x: 3, y: -3, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh14.position, {x: 3, y: -1, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh15.position, {x: 3, y: 1, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.mesh16.position, {x: 3, y: 3, immediateRender: false, scrollTrigger: {trigger: '.section-01', start: 'top', scrub: true, end: 'bottom', markers: true} });

			// Animation Step 02 (.section-02)
		timeline01.to(this.phdgroup.rotation, {x: '0.2', y: '1', z: '0', immediateRender: false, scrollTrigger: {trigger: '.section-02', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.phdgroup.scale, {x: '1', y: '1', z: '1', immediateRender: false, scrollTrigger: {trigger: '.section-02', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.phdgroup.position, {x: '-5',  y: '0', immediateRender: false, scrollTrigger: {trigger: '.section-02', start: 'top', scrub: true, end: 'bottom', markers: true} });
		timeline01.to(this.camera.position, {x: '0', y: '0', z: '15', immediateRender: false, scrollTrigger: {trigger: '.section-02', start: 'top', scrub: true, end: 'bottom', markers: true, onUpdate: function() {camera.lookAt( mesh7.position );} } });
!
999px

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