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testMath.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>testing</title>
<meta charset="utf-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
background-color: #fff;
color: #444;
margin:0;
padding:0;
width: 100vw;
height: 100vh;
overflow: hidden;
}
a {
color: #08f;
}
</style>
</head>
<body>
<script type="importmap">
{
"imports": {
"three": "./three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import Stats from 'three/addons/stats.module.js';
import { OrbitControls } from 'three/addons/OrbitControls.js';
import { EffectComposer } from "https://cdn.jsdelivr.net/npm/[email protected]/examples/jsm/postprocessing/EffectComposer.js";
import { RenderPass } from "https://cdn.jsdelivr.net/npm/[email protected]/examples/jsm/postprocessing/RenderPass.js";
import { UnrealBloomPass } from "https://cdn.jsdelivr.net/npm/[email protected]/examples/jsm/postprocessing/UnrealBloomPass.js";
import { AfterimagePass } from 'https://cdn.jsdelivr.net/npm/[email protected]/examples/jsm/postprocessing/AfterimagePass.js';
/* TEXTURE WIDTH FOR SIMULATION */
const WIDTH = 20;
const BIRDS = WIDTH * WIDTH;
// Custom Geometry - using 3 triangles each. No UVs, no normals currently.
let container, stats;
let camera, scene, renderer;
let mouseX = 0, mouseY = 0;
let windowHalfX = window.innerWidth / 2;
let windowHalfY = window.innerHeight / 2;
const BOUNDS = 800, BOUNDS_HALF = BOUNDS / 2;
let last = performance.now();
let gpuCompute;
let velocityVariable;
let positionVariable;
let positionUniforms;
let velocityUniforms;
let birdUniforms;
let monitorPos
let monitorVel
let meshDemo
let materialShader
let pointLightMNouse
let groundMesh
let materialInstanceCustom2
let materialInstancecustomDepthMaterial
let saverefence
let mathh
let composer
let aS = 1.5, bS = -2.4;
let time = 0;
init();
animate();
function init() {
container = document.createElement('div');
document.body.appendChild(container);
camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 1, 3000);
camera.position.z = 750;
scene = new THREE.Scene();
scene.background = new THREE.Color(0x00000);
const axesHelper = new THREE.AxesHelper( window.innerHeight );
scene.add( axesHelper );
const directionalLight = new THREE.DirectionalLight(0xffffff, Math.PI * 1)
directionalLight.position.set( 0, window.innerHeight/2, window.innerHeight/6 );
directionalLight.castShadow = true
directionalLight.shadow.mapSize.width = window.innerWidth
directionalLight.shadow.mapSize.height = window.innerHeight
directionalLight.shadow.camera.near = 0.5
directionalLight.shadow.camera.far = 1000
directionalLight.shadow.camera.left = -1000
directionalLight.shadow.camera.right = 1000
directionalLight.shadow.camera.top = 1000
directionalLight.shadow.camera.bottom = -1000
scene.add(directionalLight);
const helper = new THREE.DirectionalLightHelper( directionalLight, 20 );
//scene.add( helper );
pointLightMNouse = new THREE.PointLight( 0xffffff,700000, 2000 );
pointLightMNouse.position.set( 0, 0, 0 );
//pointLightMNouse.castShadow = true;
scene.add( pointLightMNouse );
const light = new THREE.AmbientLight( 0xffffff,10 ); // soft white light
scene.add( light );
renderer = new THREE.WebGLRenderer();
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.shadowMap.enabled = true
renderer.shadowMap.type = THREE.PCFSoftShadowMap
//renderer.shadowMap.type = THREE.VSMShadowMap
container.appendChild(renderer.domElement);
// effects
const renderScene = new RenderPass(scene, camera);
// resolution, strength, radius, threshold
const bloomPass = new UnrealBloomPass(new THREE.Vector2(window.innerWidth, window.innerHeight), 3.0, 0, 0);
const afterImagePass = new AfterimagePass();
afterImagePass.uniforms["damp"].value = 0.3975;
composer = new EffectComposer(renderer);
composer.addPass(renderScene);
// composer.addPass(bloomPass);
composer.addPass(afterImagePass);
stats = new Stats();
container.appendChild(stats.dom);
container.style.touchAction = 'none';
container.addEventListener('pointermove', onPointerMove);
const controls = new OrbitControls( camera, renderer.domElement );
initBirds();
}
function initBirds() {
groundMesh = new THREE.Mesh(
new THREE.PlaneGeometry(window.innerWidth,window.innerWidth),
new THREE.MeshPhongMaterial({ color:0x353535})
)
groundMesh.rotateX(-Math.PI / 4.2)
groundMesh.position.y = -300
groundMesh.receiveShadow = true
meshDemo = new THREE.Mesh(new THREE.SphereGeometry(5, 16, 16),
new THREE.MeshPhongMaterial({
color:0xfefefe
}))
scene.add(groundMesh,meshDemo);
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}
function onPointerMove(event) {
if (event.isPrimary === false) return;
mouseX = event.clientX - windowHalfX;
mouseY = event.clientY - windowHalfY;
}
//
function animate() {
requestAnimationFrame(animate);
render();
}
function computeSpiral(time) {
let xS = (aS - bS * time) * Math.cos(time);
let yS = (aS - bS * time) * Math.sin(time);
return [xS, yS];
}
function render() {
const now = performance.now();
composer.render();
// renderer.render(scene, camera);
// Compute new position
time -= 0.1
let calc = computeSpiral(time);
meshDemo.position.x = calc[0];
meshDemo.position.y = calc[1]
// meshDemo.position.z = now *0.009;
}
</script>
</body>
</html>