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287 | 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'
import { GUI } from 'dat.gui'
import TWEEN from '@tweenjs/tween.js'
const scene = new THREE.Scene()
scene.add(new THREE.AxesHelper(5))
const light1 = new THREE.SpotLight()
light1.position.set(2.5, 5, 2.5)
light1.angle = Math.PI / 8
light1.penumbra = 0.5
light1.castShadow = true
light1.shadow.mapSize.width = 1024
light1.shadow.mapSize.height = 1024
light1.shadow.camera.near = 0.5
light1.shadow.camera.far = 20
scene.add(light1)
const light2 = new THREE.SpotLight()
light2.position.set(-2.5, 5, 2.5)
light2.angle = Math.PI / 8
light2.penumbra = 0.5
light2.castShadow = true
light2.shadow.mapSize.width = 1024
light2.shadow.mapSize.height = 1024
light2.shadow.camera.near = 0.5
light2.shadow.camera.far = 20
scene.add(light2)
const camera = new THREE.PerspectiveCamera(
75,
window.innerWidth / window.innerHeight,
0.1,
1000
)
camera.position.set(0.8, 1.4, 1.0)
const renderer = new THREE.WebGLRenderer()
renderer.setSize(window.innerWidth, window.innerHeight)
renderer.shadowMap.enabled = true
document.body.appendChild(renderer.domElement)
const controls = new OrbitControls(camera, renderer.domElement)
controls.enableDamping = true
controls.target.set(0, 1, 0)
const sceneMeshes: THREE.Mesh[] = []
const planeGeometry = new THREE.PlaneGeometry(25, 25)
const texture = new THREE.TextureLoader().load('img/grid.png')
const plane = new THREE.Mesh(
planeGeometry,
new THREE.MeshPhongMaterial({ map: texture })
)
plane.rotateX(-Math.PI / 2)
plane.receiveShadow = true
scene.add(plane)
sceneMeshes.push(plane)
let mixer: THREE.AnimationMixer
let modelReady = false
let modelMesh: THREE.Object3D
const animationActions: THREE.AnimationAction[] = []
let activeAction: THREE.AnimationAction
let lastAction: THREE.AnimationAction
const gltfLoader = new GLTFLoader()
gltfLoader.load(
'models/vanguard.glb',
(gltf) => {
gltf.scene.traverse(function (child) {
if ((child as THREE.Mesh).isMesh) {
const m = child as THREE.Mesh
m.castShadow = true
m.frustumCulled = false
}
})
mixer = new THREE.AnimationMixer(gltf.scene)
const animationAction = mixer.clipAction((gltf as any).animations[0])
animationActions.push(animationAction)
animationsFolder.add(animations, 'default')
activeAction = animationActions[0]
scene.add(gltf.scene)
modelMesh = gltf.scene
//add an animation from another file
gltfLoader.load(
'models/vanguard@samba.glb',
(gltf) => {
console.log('loaded samba')
const animationAction = mixer.clipAction(
(gltf as any).animations[0]
)
animationActions.push(animationAction)
animationsFolder.add(animations, 'samba')
//add an animation from another file
gltfLoader.load(
'models/vanguard@bellydance.glb',
(gltf) => {
console.log('loaded bellydance')
const animationAction = mixer.clipAction(
(gltf as any).animations[0]
)
animationActions.push(animationAction)
animationsFolder.add(animations, 'bellydance')
//add an animation from another file
gltfLoader.load(
'models/vanguard@goofyrunning.glb',
(gltf) => {
console.log('loaded goofyrunning')
;(gltf as any).animations[0].tracks.shift() //delete the specific track that moves the object forward while running
const animationAction = mixer.clipAction(
(gltf as any).animations[0]
)
animationActions.push(animationAction)
animationsFolder.add(animations, 'goofyrunning')
modelReady = true
},
(xhr) => {
console.log(
(xhr.loaded / xhr.total) * 100 + '% loaded'
)
},
(error) => {
console.log(error)
}
)
},
(xhr) => {
console.log((xhr.loaded / xhr.total) * 100 + '% loaded')
},
(error) => {
console.log(error)
}
)
},
(xhr) => {
console.log((xhr.loaded / xhr.total) * 100 + '% loaded')
},
(error) => {
console.log(error)
}
)
},
(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()
}
const raycaster = new THREE.Raycaster()
const targetQuaternion = new THREE.Quaternion()
const mouse = new THREE.Vector2()
function onDoubleClick(event: MouseEvent) {
mouse.set(
(event.clientX / renderer.domElement.clientWidth) * 2 - 1,
-(event.clientY / renderer.domElement.clientHeight) * 2 + 1
)
raycaster.setFromCamera(mouse, camera)
const intersects = raycaster.intersectObjects(sceneMeshes, false)
if (intersects.length > 0) {
const p = intersects[0].point
const distance = modelMesh.position.distanceTo(p)
//modelMesh.lookAt(p)
const rotationMatrix = new THREE.Matrix4()
rotationMatrix.lookAt(p, modelMesh.position, modelMesh.up)
targetQuaternion.setFromRotationMatrix(rotationMatrix)
setAction(animationActions[3])
TWEEN.removeAll()
new TWEEN.Tween(modelMesh.position)
.to(
{
x: p.x,
y: p.y,
z: p.z,
},
(1000 / 2.2) * distance
) //walks 2 meters a second * the distance
.onUpdate(() => {
controls.target.set(
modelMesh.position.x,
modelMesh.position.y + 1,
modelMesh.position.z
)
light1.target = modelMesh
light2.target = modelMesh
})
.start()
.onComplete(() => {
setAction(animationActions[2])
activeAction.clampWhenFinished = true
activeAction.loop = THREE.LoopOnce
})
}
}
renderer.domElement.addEventListener('dblclick', onDoubleClick, false)
const stats = new Stats()
document.body.appendChild(stats.dom)
const animations = {
default: function () {
setAction(animationActions[0])
},
samba: function () {
setAction(animationActions[1])
},
bellydance: function () {
setAction(animationActions[2])
},
goofyrunning: function () {
setAction(animationActions[3])
},
}
const setAction = (toAction: THREE.AnimationAction) => {
if (toAction != activeAction) {
lastAction = activeAction
activeAction = toAction
//lastAction.stop()
lastAction.fadeOut(0.2)
activeAction.reset()
activeAction.fadeIn(0.2)
activeAction.play()
}
}
const gui = new GUI()
const animationsFolder = gui.addFolder('Animations')
animationsFolder.open()
const clock = new THREE.Clock()
let delta = 0
function animate() {
requestAnimationFrame(animate)
controls.update()
if (modelReady) {
delta = clock.getDelta()
mixer.update(delta)
if (!modelMesh.quaternion.equals(targetQuaternion)) {
modelMesh.quaternion.rotateTowards(targetQuaternion, delta * 10)
}
}
TWEEN.update()
render()
stats.update()
}
function render() {
renderer.render(scene, camera)
}
animate()
|
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