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function setupGraphics(){

    //create clock for timing
    clock = new THREE.Clock();

    //create the scene
    scene = new THREE.Scene();
    scene.background = new THREE.Color( 0xbfd1e5 );

    //create camera
    camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 0.2, 5000 );
    camera.position.set( 0, 30, 70 );
    camera.lookAt(new THREE.Vector3(0, 0, 0));

    //Add hemisphere light
    let hemiLight = new THREE.HemisphereLight( 0xffffff, 0xffffff, 0.1 );
    hemiLight.color.setHSL( 0.6, 0.6, 0.6 );
    hemiLight.groundColor.setHSL( 0.1, 1, 0.4 );
    hemiLight.position.set( 0, 50, 0 );
    scene.add( hemiLight );

    //Add directional light
    let dirLight = new THREE.DirectionalLight( 0xffffff , 1);
    dirLight.color.setHSL( 0.1, 1, 0.95 );
    dirLight.position.set( -1, 1.75, 1 );
    dirLight.position.multiplyScalar( 100 );
    scene.add( dirLight );

    dirLight.castShadow = true;

    dirLight.shadow.mapSize.width = 2048;
    dirLight.shadow.mapSize.height = 2048;

    let d = 50;

    dirLight.shadow.camera.left = -d;
    dirLight.shadow.camera.right = d;
    dirLight.shadow.camera.top = d;
    dirLight.shadow.camera.bottom = -d;

    dirLight.shadow.camera.far = 13500;

    //Setup the renderer
    renderer = new THREE.WebGLRenderer( { antialias: true } );
    renderer.setClearColor( 0xbfd1e5 );
    renderer.setPixelRatio( window.devicePixelRatio );
    renderer.setSize( window.innerWidth, window.innerHeight );
    document.body.appendChild( renderer.domElement );

    renderer.gammaInput = true;
    renderer.gammaOutput = true;

    renderer.shadowMap.enabled = true;

}


function renderFrame(){

    let deltaTime = clock.getDelta();

    renderer.render( scene, camera );

    requestAnimationFrame( renderFrame );

}