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171 | import * as THREE from 'three'
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls'
import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader'
import Stats from 'three/examples/jsm/libs/stats.module'
const scene = new THREE.Scene()
scene.add(new THREE.AxesHelper(5))
const camera = new THREE.PerspectiveCamera(
75,
window.innerWidth / window.innerHeight,
0.1,
1000
)
camera.position.z = 2
const renderer = new THREE.WebGLRenderer()
renderer.physicallyCorrectLights = true
renderer.shadowMap.enabled = true
renderer.outputEncoding = THREE.sRGBEncoding
renderer.setSize(window.innerWidth, window.innerHeight)
document.body.appendChild(renderer.domElement)
const controls = new OrbitControls(camera, renderer.domElement)
controls.enableDamping = true
// const material = new THREE.LineBasicMaterial({ color: 0xff0000 })
// const points = new Array()
// points.push( new THREE.Vector3( 0, 0, 0 ) )
// points.push( new THREE.Vector3( 0, 0, .25 ) )
// const geometry = new THREE.BufferGeometry().setFromPoints( points )
// const line = new THREE.Line( geometry, material )
// scene.add( line )
const arrowHelper = new THREE.ArrowHelper(
new THREE.Vector3(),
new THREE.Vector3(),
0.25,
0xffff00
)
scene.add(arrowHelper)
const material = new THREE.MeshNormalMaterial()
const boxGeometry = new THREE.BoxGeometry(0.2, 0.2, 0.2)
const coneGeometry = new THREE.ConeGeometry(0.05, 0.2, 8)
const raycaster = new THREE.Raycaster()
const sceneMeshes: THREE.Object3D[] = []
const loader = new GLTFLoader()
loader.load(
'models/monkey_textured.glb',
function (gltf) {
gltf.scene.traverse(function (child) {
if ((child as THREE.Mesh).isMesh) {
const m = child as THREE.Mesh
m.receiveShadow = true
m.castShadow = true
;(m.material as THREE.MeshStandardMaterial).flatShading = true
sceneMeshes.push(m)
}
if ((child as THREE.Light).isLight) {
const l = child as THREE.Light
l.castShadow = true
l.shadow.bias = -0.003
l.shadow.mapSize.width = 2048
l.shadow.mapSize.height = 2048
}
})
scene.add(gltf.scene)
// sceneMeshes.push(gltf.scene)
},
(xhr) => {
console.log((xhr.loaded / xhr.total) * 100 + '% loaded')
},
(error) => {
console.log(error)
}
)
window.addEventListener('resize', onWindowResize, false)
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight
camera.updateProjectionMatrix()
renderer.setSize(window.innerWidth, window.innerHeight)
render()
}
renderer.domElement.addEventListener('dblclick', onDoubleClick, false)
renderer.domElement.addEventListener('mousemove', onMouseMove, false)
function onMouseMove(event: MouseEvent) {
const mouse = {
x: (event.clientX / renderer.domElement.clientWidth) * 2 - 1,
y: -(event.clientY / renderer.domElement.clientHeight) * 2 + 1,
}
// console.log(mouse)
raycaster.setFromCamera(mouse, camera)
const intersects = raycaster.intersectObjects(sceneMeshes, false)
if (intersects.length > 0) {
// console.log(sceneMeshes.length + " " + intersects.length)
// console.log(intersects[0])
// console.log(intersects[0].object.userData.name + " " + intersects[0].distance + " ")
// console.log((intersects[0].face as THREE.Face).normal)
// line.position.set(0, 0, 0)
// line.lookAt((intersects[0].face as THREE.Face).normal)
// line.position.copy(intersects[0].point)
const n = new THREE.Vector3()
n.copy((intersects[0].face as THREE.Face).normal)
n.transformDirection(intersects[0].object.matrixWorld)
arrowHelper.setDirection(n)
arrowHelper.position.copy(intersects[0].point)
}
}
function onDoubleClick(event: MouseEvent) {
const mouse = {
x: (event.clientX / renderer.domElement.clientWidth) * 2 - 1,
y: -(event.clientY / renderer.domElement.clientHeight) * 2 + 1,
}
raycaster.setFromCamera(mouse, camera)
const intersects = raycaster.intersectObjects(sceneMeshes, false)
if (intersects.length > 0) {
const n = new THREE.Vector3()
n.copy((intersects[0].face as THREE.Face).normal)
n.transformDirection(intersects[0].object.matrixWorld)
// const cube = new THREE.Mesh(boxGeometry, material)
const cube = new THREE.Mesh(coneGeometry, material)
cube.lookAt(n)
cube.rotateX(Math.PI / 2)
cube.position.copy(intersects[0].point)
cube.position.addScaledVector(n, 0.1)
scene.add(cube)
sceneMeshes.push(cube)
}
}
const stats = Stats()
document.body.appendChild(stats.dom)
function animate() {
requestAnimationFrame(animate)
controls.update()
// if (sceneMeshes.length > 1) {
// sceneMeshes[1].rotation.x += .002
// }
render()
stats.update()
}
function render() {
renderer.render(scene, camera)
}
animate()
|
