let scene, camera, renderer, glcanvas, width, height;


const initThreeJS = () => {
    // доступ к окну отрисовки
    glcanvas = document.getElementById("glcanvas");
    // создание сцены, ее настройка
    scene = new THREE.Scene();
    width = glcanvas.getBoundingClientRect().width;
    height = glcanvas.getBoundingClientRect().height;
    camera = new THREE.PerspectiveCamera(75, width / height, 0.1, 1000);
    renderer = new THREE.WebGLRenderer({canvas: glcanvas});
    renderer.setSize(width, height);
    renderer.render( scene, camera );
}


const drawMoleculaStick = () => {

}