[SVARAI]

Мне посоветовали делать так:

x+=cos(an0)*sp; 
y+=cos(an1)*sp;
z+=cos(an2)*sp;

Но при этом результат не лучше... Что делать?

var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(75, window.innerWidth/window.innerHeight, 0.1, 20000);

var light = new THREE.PointLight( 0xffffff, 1, 2000 );
light.position.set(0,0,0);scene.add( light );

var x = 0, y = 0, z = -500, speed = 0.3, angle0 = 0, angle1 = 0, angle2 = 0;

var geometry = new THREE.CylinderGeometry( 4, 15	, 100, 6 );
var material = new THREE.MeshLambertMaterial( {color: 0xffffff} );
var cylinder = new THREE.Mesh( geometry, material );
scene.add( cylinder );

var renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
renderer.shadowMapEnabled = true;
renderer.setClearColorHex( 0x00000, 1 );

var render = function () {
	requestAnimationFrame(render);
	renderer.render(scene, camera);
	switch (key){ 
		case 38: angle1+=0.1; break;
		case 40: angle1-=0.1; break;
		case 37: angle0+=0.1; break;
		case 39: angle0-=0.1; break;

		case 90: angle2-=0.1; break;
		case 88: angle2+=0.1; break;
	}
	light.position.set(camera.position.x,camera.position.y+3,camera.position.z-3);

	cylinder.rotation.z=angle2;
	//cylinder.rotation.y=angle1;
	cylinder.rotation.x=angle0;
	cylinder.position.set( x+=Math.sin(angle0)*speed*2, y+=Math.cos(angle0)*speed, z+=Math.cos(angle2)*speed );
};
document.onkeydown = keyDn; document.onkeyup = keyUp; key=0;
function keyDn(e) {key = e.which;console.log(key)}
function keyUp(e) {key = 0;}
render();