* three.js/index3.html
class Stage {
constructor() {
this.renderParam = {
width: window.innerWidth,
height: window.innerHeight
};
this.cameraParam = {
fov: 75,
near: 0.001,
far: 5000,
lookAt: new THREE.Vector3(0, 0, 0),
x: 1,
y: 1,
z: 40
};
this.scene = null;
this.camera = null;
this.renderer = null;
this.geometry = null;
this.material = null;
this.mesh = null;
this.isInitialized = false;
}
init() {
this._setScene();
this._setRender();
this._setCamera();
this.isInitialized = true;
}
_setScene() {
this.scene = new THREE.Scene();
}
_setRender() {
this.renderer = new THREE.WebGLRenderer({
canvas: document.getElementById("webgl-canvas"),
antialias: true,
alpha: true
});
this.renderer.setPixelRatio(window.devicePixelRatio);
this.renderer.setSize(this.renderParam.width, this.renderParam.height);
}
_setCamera() {
const windowWidth = window.innerWidth;
const windowHeight = window.innerHeight;
if (!this.isInitialized) {
this.camera = new THREE.PerspectiveCamera(
this.cameraParam.fov,
this.renderParam.width / this.renderParam.height,
this.cameraParam.near,
this.cameraParam.far
);
this.camera.position.set(
this.cameraParam.x,
this.cameraParam.y,
this.cameraParam.z
);
}
this.camera.aspect = windowWidth / windowHeight;
this.camera.updateProjectionMatrix();
this.renderer.setPixelRatio(window.devicePixelRatio);
this.renderer.setSize(windowWidth, windowHeight);
}
_render() {
this.renderer.render(this.scene, this.camera);
}
onResize() {
this._setCamera();
}
onRaf() {
this._render();
}
}
class Mesh {
constructor(stage) {
this.stage = stage;
this.mesh = null;
}
init() {
this._setMesh();
this.onScroll();
}
_setMesh() {
const geometry = new THREE.IcosahedronGeometry(20, 1)
const material = new THREE.MeshNormalMaterial({
wireframe: true
});
this.mesh = new THREE.Mesh(geometry, material);
this.stage.scene.add(this.mesh);
}
onScroll() {
gsap.registerPlugin(ScrollTrigger)
ScrollTrigger.defaults({
scrub: 3,
ease: 'none',
})
const sections = document.querySelectorAll('.section')
gsap.from(this.mesh.position, {
x: 1,
duration: 1,
ease: 'expo',
})
gsap.to(this.mesh.rotation, {
x: Math.PI * 2,
scrollTrigger: {
trigger: sections[1],
},
})
gsap.to(this.mesh.scale, {
x: 0.5,
scrollTrigger: {
trigger: sections[2],
},
})
gsap.to(this.mesh.rotation, {
y: Math.PI * 2,
scrollTrigger: {
trigger: sections[3],
},
})
gsap.to(this.mesh.scale, {
y: 0.5,
scrollTrigger: {
trigger: sections[4],
},
})
gsap.to(this.mesh.rotation, {
x: Math.PI * 2,
scrollTrigger: {
trigger: sections[4],
},
})
}
onMouseMove(e) {
const x = e.clientX;
const y = e.clientY;
gsap.to(this.stage.scene.rotation, {
y: gsap.utils.mapRange(0, window.innerWidth, 1, -1, x),
x: gsap.utils.mapRange(0, window.innerHeight, 1, -1, y),
})
}
_render() {}
onRaf() {
this._render();
}
}
(() => {
const stage = new Stage();
const mesh = new Mesh(stage);
stage.init();
mesh.init();
window.addEventListener("resize", () => {
stage.onResize();
});
window.addEventListener("mousemove", (e) => {
mesh.onMouseMove(e);
})
const _raf = () => {
window.requestAnimationFrame(() => {
stage.onRaf();
_raf();
});
};
_raf();
})();
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