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Make BufferGeometry only contain normal buffer attributes by default (#…
…432) * Default BufferGeometry to use normal attributes * Named types * Fix * Stricter base * Update OTHER_FILES
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148 changes: 148 additions & 0 deletions
148
types/three/test/integration/three-examples/webgl_buffergeometry_glbufferattribute.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| import * as THREE from 'three'; | ||
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| import * as Stats from 'three/examples/jsm/libs/stats.module.js'; | ||
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| let container: HTMLElement; | ||
| let stats: Stats; | ||
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| let camera: THREE.PerspectiveCamera; | ||
| let scene: THREE.Scene; | ||
| let renderer: THREE.WebGLRenderer; | ||
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| let points: THREE.Points<THREE.BufferGeometry<THREE.NormalOrGLBufferAttributes>>; | ||
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| const particles = 300000; | ||
| let drawCount = 10000; | ||
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| init(); | ||
| animate(); | ||
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| function init() { | ||
| container = document.getElementById('container')!; | ||
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| // | ||
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| renderer = new THREE.WebGLRenderer({ antialias: false }); | ||
| renderer.setPixelRatio(window.devicePixelRatio); | ||
| renderer.setSize(window.innerWidth, window.innerHeight); | ||
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| container.appendChild(renderer.domElement); | ||
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| // | ||
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| camera = new THREE.PerspectiveCamera(27, window.innerWidth / window.innerHeight, 5, 3500); | ||
| camera.position.z = 2750; | ||
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| scene = new THREE.Scene(); | ||
| scene.background = new THREE.Color(0x050505); | ||
| scene.fog = new THREE.Fog(0x050505, 2000, 3500); | ||
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| // | ||
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| const geometry = new THREE.BufferGeometry<THREE.NormalOrGLBufferAttributes>(); | ||
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| const positions = []; | ||
| const positions2 = []; | ||
| const colors = []; | ||
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| const color = new THREE.Color(); | ||
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| const n = 1000; | ||
| const n2 = n / 2; // particles spread in the cube | ||
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| for (let i = 0; i < particles; i++) { | ||
| // positions | ||
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| const x = Math.random() * n - n2; | ||
| const y = Math.random() * n - n2; | ||
| const z = Math.random() * n - n2; | ||
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| positions.push(x, y, z); | ||
| positions2.push(z * 0.3, x * 0.3, y * 0.3); | ||
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| // colors | ||
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| const vx = x / n + 0.5; | ||
| const vy = y / n + 0.5; | ||
| const vz = z / n + 0.5; | ||
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| color.setRGB(vx, vy, vz); | ||
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| colors.push(color.r, color.g, color.b); | ||
| } | ||
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| const gl = renderer.getContext(); | ||
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| const pos = gl.createBuffer()!; | ||
| gl.bindBuffer(gl.ARRAY_BUFFER, pos); | ||
| gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW); | ||
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| const pos2 = gl.createBuffer()!; | ||
| gl.bindBuffer(gl.ARRAY_BUFFER, pos2); | ||
| gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions2), gl.STATIC_DRAW); | ||
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| const rgb = gl.createBuffer()!; | ||
| gl.bindBuffer(gl.ARRAY_BUFFER, rgb); | ||
| gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(colors), gl.STATIC_DRAW); | ||
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| const posAttr1 = new THREE.GLBufferAttribute(pos, gl.FLOAT, 3, 4, particles); | ||
| const posAttr2 = new THREE.GLBufferAttribute(pos2, gl.FLOAT, 3, 4, particles); | ||
| geometry.setAttribute('position', posAttr1); | ||
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| setInterval(() => { | ||
| const attr = geometry.getAttribute('position'); | ||
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| geometry.setAttribute('position', attr === posAttr1 ? posAttr2 : posAttr1); | ||
| }, 2000); | ||
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| geometry.setAttribute('color', new THREE.GLBufferAttribute(rgb, gl.FLOAT, 3, 4, particles)); | ||
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| // | ||
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| const material = new THREE.PointsMaterial({ size: 15, vertexColors: true }); | ||
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| points = new THREE.Points(geometry, material); | ||
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| // Choose one: | ||
| // geometry.boundingSphere = ( new THREE.Sphere() ).set( new THREE.Vector3(), Infinity ); | ||
| points.frustumCulled = false; | ||
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| scene.add(points); | ||
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| // | ||
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| stats = new Stats(); | ||
| container.appendChild(stats.dom); | ||
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| // | ||
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| window.addEventListener('resize', onWindowResize); | ||
| } | ||
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| function onWindowResize() { | ||
| camera.aspect = window.innerWidth / window.innerHeight; | ||
| camera.updateProjectionMatrix(); | ||
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| renderer.setSize(window.innerWidth, window.innerHeight); | ||
| } | ||
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| // | ||
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| function animate() { | ||
| requestAnimationFrame(animate); | ||
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| render(); | ||
| stats.update(); | ||
| } | ||
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| function render() { | ||
| drawCount = (Math.max(5000, drawCount) + Math.floor(500 * Math.random())) % particles; | ||
| points.geometry.setDrawRange(0, drawCount); | ||
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| const time = Date.now() * 0.001; | ||
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| points.rotation.x = time * 0.1; | ||
| points.rotation.y = time * 0.2; | ||
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| renderer.render(scene, camera); | ||
| } |
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