jimib

var loader = new THREE.GLTFLoader();
var mixer;

loader.load( SRC_GLB, 
  ( gltf ) => {

  //add the scene to a container (or directly to our THREE scene)
  container.add( gltf.scene )
  
  //configure the animation

jimib

var heightPx = 512;
var widthPx = 512;

var sizePx = Math.max( widthPx, heightPx );
var targetSize = 0.5;

var scaleX = targetSize * widthPx / sizePx;
var scaleY = targetSize * heightPx / sizePx;