Skip to content


 Zabbix
 Grafana
 Prometheus
 Threejs and TypeScript
 SocketIO and TypeScript
 Blender Topological Earth
 Sweet Home 3D
 Design Patterns Python
 Design Patterns TypeScript
   
 Course Coupon Codes
Three.js and TypeScript
Kindle Edition
$9.99 $14.99 Paperback 
$29.99 $34.99




Design Patterns in TypeScript
Kindle Edition
$9.99 $14.99 Paperback
$19.99 $24.99
Design Patterns in Python
Kindle Edition
$9.99 $14.99 Paperback
$19.99 $24.99

FBX Animations

Video Lecture

FBX Animations FBX Animations FBX Animations

Description

In this exercise, we import a different FBX model, and we also import several animation clips for the model. We then create buttons to smoothly transition the model between each animation clip.

Resources

For this exercise, you should download the character model named "Vanguard By T. Choonyung" from Mixamo and save it into your ./dist/client/models/ folder. Save it as vanguard_t_choonyung.fbx using the options FBX Binary(.fbx) and T-Pose.

Also download the animations separately, save them into your ./dist/client/models/ folder using the options FBX Binary(.fbx) and Without Skin. Rename them as below.

  • Samba Dancing (In Place Version) --> Rename to vanguard@samba.fbx
  • Belly Dancing --> Rename to vanguard@bellydance.fbx
  • Goofy Running --> Rename to vanguard@goofyrunning.fbx

Start Script

./src/client/client.ts

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
import * as THREE from 'three'
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls'
import { FBXLoader } from 'three/examples/jsm/loaders/FBXLoader'
import Stats from 'three/examples/jsm/libs/stats.module'
import { GUI } from 'three/examples/jsm/libs/dat.gui.module'

const scene = new THREE.Scene()
scene.add(new THREE.AxesHelper(5))

const light = new THREE.PointLight()
light.position.set(2.5, 7.5, 15)
scene.add(light)

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)
document.body.appendChild(renderer.domElement)

const controls = new OrbitControls(camera, renderer.domElement)
controls.enableDamping = true
controls.target.set(0, 1, 0)

let mixer: THREE.AnimationMixer
let modelReady = false
const animationActions: THREE.AnimationAction[] = []
let activeAction: THREE.AnimationAction
let lastAction: THREE.AnimationAction
const fbxLoader: FBXLoader = new FBXLoader()

fbxLoader.load(
    'models/vanguard_t_choonyung.fbx',
    (object) => {
        object.scale.set(0.01, 0.01, 0.01)
        mixer = new THREE.AnimationMixer(object)

        const animationAction = mixer.clipAction(
            (object as THREE.Object3D).animations[0]
        )
        animationActions.push(animationAction)
        animationsFolder.add(animations, 'default')
        activeAction = animationActions[0]

        scene.add(object)

        // // add an animation from another file
        // fbxLoader.load('models/vanguard@samba.fbx',
        //     (object) => {
        //         console.log("loaded samba")

        //         const animationAction = mixer.clipAction((object as THREE.Object3D).animations[0]);
        //         animationActions.push(animationAction)
        //         animationsFolder.add(animations, "samba")

        //         // add an animation from another file
        //         fbxLoader.load('models/vanguard@bellydance.fbx',
        //             (object) => {
        //                 console.log("loaded bellydance")
        //                 const animationAction = mixer.clipAction((object as THREE.Object3D).animations[0]);
        //                 animationActions.push(animationAction)
        //                 animationsFolder.add(animations, "bellydance")

        //                 // add an animation from another file
        //                 fbxLoader.load('models/vanguard@goofyrunning.fbx',
        //                     (object) => {
        //                         console.log("loaded goofyrunning");
        //                         (object as THREE.Object3D).animations[0].tracks.shift() //delete the specific track that moves the object forward while running
        //                         //console.dir((object as THREE.Object3D).animations[0])
        //                         const animationAction = mixer.clipAction((object as THREE.Object3D).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 stats = 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(1)
        activeAction.reset()
        //activeAction.fadeIn(1)
        activeAction.play()
    }
}

const gui = new GUI()
const animationsFolder = gui.addFolder('Animations')
animationsFolder.open()

const clock = new THREE.Clock()

function animate() {
    requestAnimationFrame(animate)

    controls.update()

    if (modelReady) mixer.update(clock.getDelta())

    render()

    stats.update()
}

function render() {
    renderer.render(scene, camera)
}

animate()

Final Script

./src/client/client.ts

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
import * as THREE from 'three'
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls'
import { FBXLoader } from 'three/examples/jsm/loaders/FBXLoader'
import Stats from 'three/examples/jsm/libs/stats.module'
import { GUI } from 'three/examples/jsm/libs/dat.gui.module'

const scene = new THREE.Scene()
scene.add(new THREE.AxesHelper(5))

const light = new THREE.PointLight()
light.position.set(2.5, 7.5, 15)
scene.add(light)

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)
document.body.appendChild(renderer.domElement)

const controls = new OrbitControls(camera, renderer.domElement)
controls.enableDamping = true
controls.target.set(0, 1, 0)

let mixer: THREE.AnimationMixer
let modelReady = false
const animationActions: THREE.AnimationAction[] = []
let activeAction: THREE.AnimationAction
let lastAction: THREE.AnimationAction
const fbxLoader: FBXLoader = new FBXLoader()

fbxLoader.load(
    'models/vanguard_t_choonyung.fbx',
    (object) => {
        object.scale.set(0.01, 0.01, 0.01)
        mixer = new THREE.AnimationMixer(object)

        const animationAction = mixer.clipAction(
            (object as THREE.Object3D).animations[0]
        )
        animationActions.push(animationAction)
        animationsFolder.add(animations, 'default')
        activeAction = animationActions[0]

        scene.add(object)

        //add an animation from another file
        fbxLoader.load(
            'models/vanguard@samba.fbx',
            (object) => {
                console.log('loaded samba')

                const animationAction = mixer.clipAction(
                    (object as THREE.Object3D).animations[0]
                )
                animationActions.push(animationAction)
                animationsFolder.add(animations, 'samba')

                //add an animation from another file
                fbxLoader.load(
                    'models/vanguard@bellydance.fbx',
                    (object) => {
                        console.log('loaded bellydance')
                        const animationAction = mixer.clipAction(
                            (object as THREE.Object3D).animations[0]
                        )
                        animationActions.push(animationAction)
                        animationsFolder.add(animations, 'bellydance')

                        //add an animation from another file
                        fbxLoader.load(
                            'models/vanguard@goofyrunning.fbx',
                            (object) => {
                                console.log('loaded goofyrunning');
                                (object as THREE.Object3D).animations[0].tracks.shift() //delete the specific track that moves the object forward while running
                                //console.dir((object as THREE.Object3D).animations[0])
                                const animationAction = mixer.clipAction(
                                    (object as THREE.Object3D).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 stats = 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(1)
        activeAction.reset()
        activeAction.fadeIn(1)
        activeAction.play()
    }
}

const gui = new GUI()
const animationsFolder = gui.addFolder('Animations')
animationsFolder.open()

const clock = new THREE.Clock()

function animate() {
    requestAnimationFrame(animate)

    controls.update()

    if (modelReady) mixer.update(clock.getDelta())

    render()

    stats.update()
}

function render() {
    renderer.render(scene, camera)
}

animate()

Mixamo

https://threejs.org/docs/#api/en/animation/AnimationMixer

https://threejs.org/docs/#api/en/animation/KeyframeTrack