Skip to main content

How to move 3D Model Position THREE.js

I'm trying to create a walking 3D model in three.js. I have both the 3D model and the in place fbx walking animation from Mixamo imported into my project. The model and animation works as expected; the model "walks" due to the loaded animation but stays in the same position. My problem is trying to get the position of the model to increment each frame to give the illusion that the model is walking forwards.

Here is my code:

import './style.css'
import * as THREE from 'three';
import { FontLoader } from 'three/examples/jsm/loaders/FontLoader';
import { TextGeometry } from 'three/examples/jsm/geometries/TextGeometry';
import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader';
import { Reflector } from 'three/examples/jsm/objects/Reflector.js';
import { FirstPersonControls } from 'three/examples/jsm/controls/FirstPersonControls.js';
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls.js';
import { FBXLoader } from 'three/examples/jsm/loaders/FBXLoader';


let glow = 0.05;
let clock = new THREE.Clock();


/* CREATE CAMERA */

  const camera = new THREE.PerspectiveCamera( 100, window.innerWidth / window.innerHeight, 0.01, 4000);
  camera.position.setZ(1);
  camera.position.setX(200);
  camera.position.setY(10);
  // camera.lookAt(50, 0, -1200);

/* END CAMERA */


/* CREATE SCENE & FOG */

  const scene = new THREE.Scene();
  var setcolor = 0x3A4544;
  scene.background = new THREE.Color(setcolor);
  //scene.fog = new THREE.Fog(setcolor, 0, 4000);

/* END SCENE & FOG */



/* CREATE RENDERER */

  const renderer = new THREE.WebGLRenderer( { antialias: true, alpha: true } );
  renderer.setSize( window.innerWidth, window.innerHeight );
  renderer.setAnimationLoop( animation );
  renderer.setPixelRatio( window.devicePixelRatio );
  renderer.shadowMap.enabled = true;
  renderer.outputEncoding = THREE.sRGBEncoding;
  document.body.appendChild( renderer.domElement );

/* END RENDERER */


/* CREATE ORBIT CONTROLS */

  const controls = new OrbitControls( camera, renderer.domElement );
  // const controls = new FirstPersonControls( camera, renderer.domElement );
  // controls.movementSpeed = 50;
  // controls.lookSpeed = 0.05;
  // controls.lookVertical = true;
  // controls.constrainVertical = true

/* END ORBIT CONTROLS */


/* CREATE LIGHTS */

  const rectLight = new THREE.RectAreaLight( 0xf9d71c, glow, 150, 100 );
  scene.add( rectLight );
  rectLight.position.set( -8, 100, -290 );
  rectLight.lookAt( 0, 0, 0 );

  const ambientLight = new THREE.AmbientLight(0xaaaaaa, 0.15)
  ambientLight.position.set( 200, 100, 0 );
  ambientLight.lookAt( -300, -300, -300 );
  scene.add(ambientLight)

/* END LIGHTS */


/* CREATE CITY */

  // Floor
  let groundMirror1, geometry;
  geometry = new THREE.PlaneGeometry( 2500, 2500 );
  groundMirror1 = new Reflector( geometry, {
    clipBias: 0.003,
    color: new THREE.Color(0x212227),
    side: THREE.DoubleSide,
    mixBlur: 5    
  });

  groundMirror1.position.y = -50
  groundMirror1.rotateX( - Math.PI / 2);

  scene.add( groundMirror1 );




  // 3D Building Font
  let text = "JOHN JACOBS";
  let textMesh;

  const loader = new FontLoader();
  loader.load('node_modules/three/examples/fonts/droid/droid_serif_regular.typeface.json', function (font) {
    const textGeometry = new TextGeometry(text, {
      font: font,
      size: 40,
      height: 1,
      curveSegments: 12,
      bevelEnabled: true,
      bevelThickness: 2,
      bevelSize: 2,
      bevelOffset: 2,
      bevelSegments: 2
    });

    textMesh = new THREE.Mesh(textGeometry, [
      new THREE.MeshPhongMaterial({ emissive: 0xf9d71c, emissiveIntensity: glow }),
      new THREE.MeshPhongMaterial({ color: 0xffffff })
    ]);

    scene.add( textMesh );

    textMesh.position.y = 1685;
    textMesh.position.x = -2000;
    textMesh.position.z = 250;
    textMesh.rotation.y = ( Math.PI / 2 );
  });


  // 3D Models
  const gltfLoader1 = new GLTFLoader();
  gltfLoader1.load('models/building2/scene.gltf', (gltfScene1) => {
    gltfScene1.scene.scale.set( 20, 20, 20 );
    gltfScene1.scene.position.x = 20;
    gltfScene1.scene.position.z = 180;
    gltfScene1.scene.position.y = -50;
    scene.add(gltfScene1.scene);
  });

  const gltfLoader2 = new GLTFLoader();
  gltfLoader2.load('models/building3/scene.gltf', (gltfScene2) => {
    gltfScene2.scene.scale.set( 80, 80, 80 );
    gltfScene2.scene.position.x = -75;
    gltfScene2.scene.position.z = -400;
    gltfScene2.scene.position.y = -1410;
    gltfScene2.scene.rotation.y = ( - Math.PI / 2 )
    scene.add(gltfScene2.scene);
  });

  const gltfLoader3 = new GLTFLoader();
  gltfLoader3.load('models/building4/scene.gltf', (gltfScene3) => {
    gltfScene3.scene.scale.set( 70, 70, 70 );
    gltfScene3.scene.position.x = -500;
    gltfScene3.scene.position.z = 300;
    gltfScene3.scene.position.y = 75;
    scene.add(gltfScene3.scene);
  });

  const gltfLoader4 = new GLTFLoader();
  gltfLoader4.load('models/main_building/scene.gltf', (gltfScene4) => {
    gltfScene4.scene.scale.set( 10, 10, 10 );
    gltfScene4.scene.position.x = -2600;
    gltfScene4.scene.position.z = -450;
    gltfScene4.scene.position.y = 75;
    gltfScene4.scene.rotation.y = ( Math.PI / 2);
    scene.add(gltfScene4.scene);
  });

  const gltfLoader5 = new GLTFLoader();
  gltfLoader5.load('models/building5/scene.gltf', (gltfScene5) => {
    gltfScene5.scene.scale.set( 10, 10, 10 );
    gltfScene5.scene.position.x = -2600;
    gltfScene5.scene.position.z = -500;
    gltfScene5.scene.position.y = 275;
    scene.add(gltfScene5.scene);
  });

  // 3D model and walking animation
  let mixer;
  const zomLoader = new FBXLoader();
  zomLoader.load('models/characters/Ch44_nonPBR.fbx', (fbx) => {
    
    fbx.position.x = -500;
    fbx.position.z = 0;
    fbx.position.y = -50;
    fbx.rotation.y = ( Math.PI / 2 );
    fbx.scale.set( 1, 1, 1 );

    const anim = new FBXLoader();
    anim.load('models/characters/Walking.fbx', (anim) => {
      mixer = new THREE.AnimationMixer(fbx);
      const idle = mixer.clipAction(anim.animations[0]);
      idle.play();
    })
    scene.add(fbx)
  });

/* END CITY */


/* CREATE WINDOW RESIZE FUNCTION */

  window.addEventListener('resize', onWindowResize, false)
  function onWindowResize() {
      camera.aspect = window.innerWidth / window.innerHeight
      camera.updateProjectionMatrix()
      renderer.setSize(window.innerWidth, window.innerHeight)
      animation()
  }

/* END WINDOW RESIZE FUNCTION */



/* CREATE MAIN ANIMATION FUNCTION */

  animation();
  function animation() {

    requestAnimationFrame( animation );

    //I've tried these two options 
    //fbx.position.x += 0.5;
    //zomLoader(fbx).position.x += 0.5;


    glow = Math.random() - 0.01;
    textMesh.material[0].emissiveIntensity = glow;
    rectLight.intensity = glow;


    if(mixer){
      mixer.update(clock.getDelta());
    }


    //controls.update( clock.getDelta() );
    controls.update();
    renderer.render( scene, camera );

  }

/* END MAIN ANIMATION FUNCTION */

I'm still new to three.js, and the only times I've moved any object were meshs, not imported 3D models. I'm used to using mesh.position.x += 1 inside the main animation function, but when I try to apply that to the model using fbx.position.x += 1, the scene disappears. How can I move the 3D model position to give the illusion the model is walking along the x-axis?

EDIT

I figured it out. I added a global variable let human;, assigned it to fbx and used human.position.x += 1 in the main animation function. Cheers.

Via Active questions tagged javascript - Stack Overflow https://ift.tt/rH9ija7

Labels

Labels:

Comments

Post a Comment

Popular posts from this blog

ValueError: X has 10 features, but LinearRegression is expecting 1 features as input

So, I am trying to predict the model but its throwing error like it has 10 features but it expacts only 1. So I am confused can anyone help me with it? more importantly its not working for me when my friend runs it. It works perfectly fine dose anyone know the reason about it? cv = KFold(n_splits = 10) all_loss = [] for i in range(9): # 1st for loop over polynomial orders poly_order = i X_train = make_polynomial(x, poly_order) loss_at_order = [] # initiate a set to collect loss for CV for train_index, test_index in cv.split(X_train): print('TRAIN:', train_index, 'TEST:', test_index) X_train_cv, X_test_cv = X_train[train_index], X_test[test_index] t_train_cv, t_test_cv = t[train_index], t[test_index] reg.fit(X_train_cv, t_train_cv) loss_at_order.append(np.mean((t_test_cv - reg.predict(X_test_cv))**2)) # collect loss at fold all_loss.append(np.mean(loss_at_order)) # collect loss at order plt.plot(np.log(al...
Post a Comment
Read more

Sorting large arrays of big numeric stings

I was solving bigSorting() problem from hackerrank: Consider an array of numeric strings where each string is a positive number with anywhere from to digits. Sort the array's elements in non-decreasing, or ascending order of their integer values and return the sorted array. I know it works as follows: def bigSorting(unsorted): return sorted(unsorted, key=int) But I didnt guess this approach earlier. Initially I tried below: def bigSorting(unsorted): int_unsorted = [int(i) for i in unsorted] int_sorted = sorted(int_unsorted) return [str(i) for i in int_sorted] However, for some of the test cases, it was showing time limit exceeded. Why is it so? PS: I dont know exactly what those test cases were as hacker rank does not reveal all test cases. source https://stackoverflow.com/questions/73007397/sorting-large-arrays-of-big-numeric-stings
Post a Comment
Read more

How to load Javascript with imported modules?

I am trying to import modules from tensorflowjs, and below is my code. test.html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title </head> <body> <script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs@2.0.0/dist/tf.min.js"></script> <script type="module" src="./test.js"></script> </body> </html> test.js import * as tf from "./node_modules/@tensorflow/tfjs"; import {loadGraphModel} from "./node_modules/@tensorflow/tfjs-converter"; const MODEL_URL = './model.json'; const model = await loadGraphModel(MODEL_URL); const cat = document.getElementById('cat'); model.execute(tf.browser.fromPixels(cat)); Besides, I run the server using python -m http.server in my command prompt(Windows 10), and this is the error prompt in the console log of my browser: Failed to loa...
Post a Comment
Read more