Fabiantjoeaon

function onWindowResize() {
    windowHalfX = window.innerWidth / 2;
    windowHalfY = window.innerHeight / 2;
    camera.aspect = window.innerWidth / window.innerHeight;
    camera.updateProjectionMatrix();
    renderer.setSize( window.innerWidth, window.innerHeight );
}

window.addEventListener( 'resize', onWindowResize, false );

Fabiantjoeaon

const mouseMoveEls = Array.from(document.getElementsByClassName('transform__mm'));
  document.addEventListener( 'mousemove', (e) => {
    const width = window.outerWidth;
    const height = window.outerHeight;
    const offsetX = 0.5 - e.pageX / width;
    const offsetY = 0.5 - e.pageY / height;

    mouseMoveEls.forEach((el, i) => {
      const dataOffset = parseInt(el.getAttribute('data-offset'));
      const translate = `translate3d(${Math.round(offsetX * dataOffset)}px, ${Math.round(offsetY * dataOffset)}px, 0px)`;