sprite加载后缩放和变形-three.js

//.........SPRITE
var satelliteTexture = new THREE.TextureLoader().load('assets/img/sections/section-astronaut/small-satellite.png');
var satelliteSprite = new THREE.Sprite(new THREE.SpriteMaterial({
  map: satelliteTexture,
  color: 0xffffff,
  fog: false
}));
satelliteSprite.scale.set(0.14, 0.075, 1);
satelliteSprite.position.setFromSpherical(new THREE.Spherical().set(0.565, Math.PI * 2 - 0.9, Math.PI * 2 + 0.5));
earth.add(satelliteSprite);
window['satelliteSprite'] = satelliteSprite;

var axesHelperSatelliteSprite = new THREE.AxesHelper(5);
satelliteSprite.add(axesHelperSatelliteSprite);

//..........CAMERA
var camera = window['camera'] = new THREE.PerspectiveCamera(45, width / height, 0.01, 100);
camera.position.z = 1.5;

//..........EARTH
var earth = window['earth'] = new THREE.Mesh(
  new THREE.SphereGeometry(earthRadius, earthSegments, earthSegments),
  new THREE.MeshPhongMaterial({
    map: THREE.ImageUtils.loadTexture('assets/img/sections/section-astronaut/2_no_clouds_4k.jpg'),
    bumpMap: THREE.ImageUtils.loadTexture('assets/img/sections/section-astronaut/elev_bump_4k.jpg'),
    bumpScale: 0.002,
    specularMap: THREE.ImageUtils.loadTexture('assets/img/sections/section-astronaut/water_4k.png'),
    specular: new THREE.Color(0x111111),
    wireframe: false
  })
);
earth.rotation.x = 0.4;
earth.rotation.y = -1.95;