We Keep Coding

Animating rotation of object based on new pivot in Three.js

I want to do this in Three.JS:
I did the spiral and downward movement, but I don't do the knocking motion.
var planeGeometry = new THREE.PlaneGeometry(10,10);
var planeMaterial = new THREE.MeshBasicMaterial({color: 0x828282, wireframe: false, side: THREE.DoubleSide});
var planeMesh = new THREE.Mesh(planeGeometry, planeMaterial);
planeMesh.rotation.x = 1.0 * THREE.Math.degToRad(90);
scene.add(planeMesh);
var cylinderGeometry = new THREE.CylinderGeometry(0.2, 0.2, 14);
var cylinderMaterial = new THREE.MeshBasicMaterial({color: 0x00ff00, wireframe: false});
var cylinderMesh = new THREE.Mesh(cylinderGeometry, cylinderMaterial);
cylinderMesh.position.set(0,7,0);
scene.add(cylinderMesh);
groupDown = new THREE.Group();
groupSpiral = new THREE.Group();
groupKnock = new THREE.Group();
var woodPeckerGeometry = new THREE.BoxGeometry(1,3,2);
var woodPeckerMaterial = new THREE.MeshBasicMaterial({color: 0xffffff, wireframe: false});
var woodPeckerMesh = new THREE.Mesh(woodPeckerGeometry , woodPeckerMaterial );
groupDown.add(woodPeckerMesh );
groupDown.position.set(0, 10, 2);
groupSpiral.add(groupDown)
groupKnock.add(groupSpiral)
scene.add(groupKnock);
and the render function:
var render = function () {
groupDown.position.y -= 0.03;
if(groupDown.position.y < 1.6) {
groupDown.position.y = 13;
}
groupSpiral.rotation.y += 0.03;
};
So the question is that how can I do knocking motion?

You could increase the groupDown rotation on the z axis like you did with its position and the "woodpecker" would start to knock on the cylinder. The problem with this is that the pivot for the rotation is at the center of the box.
To fix this, you can add the "woodpecker" to a group (i.e. pivotGroup), set its position up relative to its height on this new group and treat pivotGroup as the new object for animation. This way, the box would rotate from its base.
See the complete example below.
var camera, scene, renderer, groupSpiral, groupDown, groupKnock;
function init() {
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera(30, window.innerWidth / window.innerHeight, 10, 10000);
camera.position.z = 30;
camera.position.y = 24;
camera.rotation.x = -0.55;
scene.add(camera);
var planeGeometry = new THREE.PlaneGeometry(10, 10);
var planeMaterial = new THREE.MeshBasicMaterial({color: 0x828282, wireframe: false, side: THREE.DoubleSide});
var planeMesh = new THREE.Mesh(planeGeometry, planeMaterial);
planeMesh.rotation.x = 1.0 * THREE.Math.degToRad(90);
planeMesh.rotation.z = 1.0 * THREE.Math.degToRad(45);
scene.add(planeMesh);
var cylinderGeometry = new THREE.CylinderGeometry(0.3, 0.3, 14);
var cylinderMaterial = new THREE.MeshBasicMaterial({color: 0x00ff00, wireframe: false});
var cylinderMesh = new THREE.Mesh(cylinderGeometry, cylinderMaterial);
cylinderMesh.position.y = 7;
scene.add(cylinderMesh);
var coneGeometry = new THREE.ConeGeometry(0.3, 1, 32);
var coneMaterial = new THREE.MeshBasicMaterial({color: 0xff0000, wireframe: false});
var coneMesh = new THREE.Mesh(coneGeometry, coneMaterial);
coneMesh.position.set(1, 1.8, 0);
coneMesh.rotation.z = Math.PI / -2;
groupDown = new THREE.Group();
groupSpiral = new THREE.Group();
groupKnock = new THREE.Group();
var woodPeckerGeometry = new THREE.BoxGeometry(1, 3, 1.5);
var woodPeckerMaterial = new THREE.MeshBasicMaterial({color: 0xffffff, wireframe: false});
var woodPeckerMesh = new THREE.Mesh(woodPeckerGeometry, woodPeckerMaterial);
woodPeckerMesh.position.set(0, 1, 0);
woodPeckerMesh.rotation.set(0, 0, Math.PI);
groupKnock.add(coneMesh);
groupKnock.add(woodPeckerMesh);
groupDown.add(groupKnock);
groupDown.position.set(0, 12, 1.5);
groupDown.rotation.y = Math.PI / 2;
groupSpiral.add(groupDown)
scene.add(groupSpiral);
renderer = new THREE.WebGLRenderer({antialias: true});
renderer.setSize(window.innerWidth, window.innerHeight);
$(renderer.domElement).appendTo("body");
}
function animate() {
requestAnimationFrame(animate);
render();
}
function render() {
groupDown.position.y -= 0.03;
if(groupDown.position.y < 1.6) {
groupDown.position.y = 12;
}
groupSpiral.rotation.y += 0.03;
groupKnock.rotation.z += 0.035;
if(groupKnock.rotation.z > Math.PI/6) {
groupKnock.rotation.z = 0;
}
renderer.render(scene, camera);
}
$(document).ready(function() {
init();
animate();
});
* {
padding: 0;
margin: 0;
overflow: hidden;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/109/three.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

Camera position not inside Skybox three.js

I am working on a 3D solar system project that involves a rocket rotation around a planet. I tried following this tutorial (https://www.youtube.com/watch?v=7fJgVyq0OYo) to create a skybox for my planets to exist within. Although there are no errors being displayed and I know the skybox is being created, it is nowhere near my planets and rocket and I'm unsure how to make my camera start in the center of the scene. My code is as follows,
// once everything is loaded, we run our Three.js stuff.
$(function() {
var stats = initStats();
// create a scene, that will hold all our elements such as objects, cameras and lights.
var scene = new THREE.Scene();
// create a camera, which defines where we're looking at.
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
// create a render and set the size
var renderer = new THREE.WebGLRenderer();
renderer.setClearColor(0xEEEEEE, 1.0);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.shadowMap.enabled = true;
window.addEventListener('resize', function()
{
var width = window.innerWidth;
var height = window.innerHeight;
renderer.setSize(width, height);
camera.aspect = width / height;
camera.updateProjectionMatrix();
} );
controls = new THREE.OrbitControls(camera, renderer.domElement);
var geometry = new THREE.CubeGeometry(10000,10000,10000);
var cubeMaterials =
[
new THREE.MeshBasicMaterial({map: new THREE.TextureLoader().load("../assets/textures/skybox/ame_nebula/purplenebula_ft.png"), side: THREE.DoubleSide}),
new THREE.MeshBasicMaterial({map: new THREE.TextureLoader().load("../assets/textures/skybox/ame_nebula/purplenebula_bk.png"), side: THREE.DoubleSide}),
new THREE.MeshBasicMaterial({map: new THREE.TextureLoader().load("../assets/textures/skybox/ame_nebula/purplenebula_up.png"), side: THREE.DoubleSide}),
new THREE.MeshBasicMaterial({map: new THREE.TextureLoader().load("../assets/textures/skybox/ame_nebula/purplenebula_dn.png"), side: THREE.DoubleSide}),
new THREE.MeshBasicMaterial({map: new THREE.TextureLoader().load("../assets/textures/skybox/ame_nebula/purplenebula_rt.png"), side: THREE.DoubleSide}),
new THREE.MeshBasicMaterial({map: new THREE.TextureLoader().load("../assets/textures/skybox/ame_nebula/purplenebula_lf.png"), side: THREE.DoubleSide})
];
var cubeMaterial = new THREE.MeshFaceMaterial(cubeMaterials);
var cube = new THREE.Mesh(geometry, cubeMaterial);
scene.add(cube);
// create the object group that contains all the sub-shapes
var rocketGroup = new THREE.Object3D();
scene.add(rocketGroup);
//display grid
//scene.add(new THREE.GridHelper(100,10));
var rocketMaterial = new THREE.MeshLambertMaterial({color: 0xEEEEEE});
var hingeMaterial = new THREE.MeshLambertMaterial({color: 0xFD1414});
/////////////////////////////////////////////////////////////////////////////////////////
var rocketAntennaOne = new THREE.CylinderGeometry( 0, 1, 1, 5);
var rocketAntennaOneMesh = new THREE.Mesh(rocketAntennaOne, hingeMaterial, new THREE.MeshPhongMaterial());
var rocketAntennaTwo = new THREE.CylinderGeometry( 1, 1.5, 0.5, 5 );
var rocketAntennaTwoMesh = new THREE.Mesh(rocketAntennaTwo, hingeMaterial, new THREE.MeshPhongMaterial());
var rocketAntennaThree = new THREE.CylinderGeometry( 1.5, 2, 0.5, 5 );
var rocketAntennaThreeMesh = new THREE.Mesh( rocketAntennaThree,hingeMaterial, new THREE.MeshPhongMaterial());
/////////////////////////////////////////////////////////////////////////////////////////
var rocketBodyOne = new THREE.CylinderGeometry( 2, 4, 3, 5 );
var rocketBodyOneMesh = new THREE.Mesh(rocketBodyOne,rocketMaterial, new THREE.MeshPhongMaterial());
var rocketBodyTwo = new THREE.CylinderGeometry( 4, 5.5, 3, 5 );
var rocketBodyTwoMesh = new THREE.Mesh(rocketBodyTwo,rocketMaterial, new THREE.MeshPhongMaterial());
var rocketBodyThree = new THREE.CylinderGeometry( 5.5, 7, 3, 5 );
var rocketBodyThreeMesh = new THREE.Mesh(rocketBodyThree,rocketMaterial, new THREE.MeshPhongMaterial());
var rocketBodyFour = new THREE.CylinderGeometry( 7, 7.5, 3, 5 );
var rocketBodyFourMesh = new THREE.Mesh(rocketBodyFour,rocketMaterial, new THREE.MeshPhongMaterial());
var rocketBodyFive = new THREE.CylinderGeometry( 7.5, 8, 3.5, 5 );
var rocketBodyFiveMesh = new THREE.Mesh(rocketBodyFive,rocketMaterial, new THREE.MeshPhongMaterial());
var rocketBodySix = new THREE.CylinderGeometry( 8, 8, 5, 5 );
var rocketBodySixMesh = new THREE.Mesh(rocketBodySix,rocketMaterial, new THREE.MeshPhongMaterial());
var rocketBodySeven = new THREE.CylinderGeometry( 8, 7.5, 3.5, 5 );
var rocketBodySevenMesh = new THREE.Mesh(rocketBodySeven,rocketMaterial, new THREE.MeshPhongMaterial());
var rocketBodyEight = new THREE.CylinderGeometry( 7.5, 7, 3.5, 5 );
var rocketBodyEightMesh = new THREE.Mesh(rocketBodyEight,rocketMaterial, new THREE.MeshPhongMaterial());
var rocketBodyNine = new THREE.CylinderGeometry( 7, 6.5, 3, 5 );
var rocketBodyNineMesh = new THREE.Mesh(rocketBodyNine,rocketMaterial, new THREE.MeshPhongMaterial());
var rocketBodyTen = new THREE.CylinderGeometry( 6.5, 6, 3, 5 );
var rocketBodyTenMesh = new THREE.Mesh(rocketBodyTen,rocketMaterial, new THREE.MeshPhongMaterial());
/////////////////////////////////////////////////////////////////////////////////////////
var rocketBodyUpper = new THREE.CylinderGeometry( 3.5, 4, 3.5, 5 );
var rocketBodyUpperMesh = new THREE.Mesh(rocketBodyUpper,rocketMaterial, new THREE.MeshPhongMaterial());
/////////////////////////////////////////////////////////////////////////////////////////
var rocketBodyLower = new THREE.CylinderGeometry( 2.75, 3, 2.5, 5 );
var rocketBodyLowerMesh = new THREE.Mesh(rocketBodyLower,rocketMaterial, new THREE.MeshPhongMaterial());
//var rocketWindow = new THREE.RingGeometry(5,6,30);
//var rocketWindowMesh = new THREE.Mesh(rocketWindow,hingeMaterial, new THREE.MeshPhongMaterial());
///////////////////////////////////////////////////////////////////////////////////////
var x = 0;
var y = 0;
var RocketFinOne = new THREE.Shape();
RocketFinOne.moveTo( x + 0, y + 0 );
RocketFinOne.lineTo( x + 0, y + 16);
RocketFinOne.lineTo( x + 7, y + 20);
RocketFinOne.lineTo( x + 7, y + 15);
RocketFinOne.lineTo( x + 2.5, y + 13);
var extrudeSettings = {amount: 0.01, bevelEnabled:true, bevelSegments:2,steps:2,bevelSize:1,bevelThickness:1};
var geometry = new THREE.ExtrudeGeometry( RocketFinOne,extrudeSettings );
var material = new THREE.MeshLambertMaterial( { color: 0xFD1414 } );
var rocketFinOneMesh = new THREE.Mesh( geometry, material ) ;
var RocketFinTwo = new THREE.Shape();
RocketFinTwo.moveTo( x + 0, y + 0 );
RocketFinTwo.lineTo( x + 0, y + 16);
RocketFinTwo.lineTo( x + 7, y + 20);
RocketFinTwo.lineTo( x + 7, y + 15);
RocketFinTwo.lineTo( x + 2.5, y + 13);
var extrudeSettings = {amount: 0.01, bevelEnabled:true, bevelSegments:2,steps:2,bevelSize:1,bevelThickness:1};
var geometry = new THREE.ExtrudeGeometry( RocketFinTwo,extrudeSettings );
var material = new THREE.MeshLambertMaterial( { color: 0xFD1414 } );
var rocketFinTwoMesh = new THREE.Mesh( geometry, material ) ;
var RocketFinThree = new THREE.Shape();
RocketFinThree.moveTo( x + 0, y + 0 );
RocketFinThree.lineTo( x + 0, y + 16);
RocketFinThree.lineTo( x + 7, y + 20);
RocketFinThree.lineTo( x + 7, y + 15);
RocketFinThree.lineTo( x + 2.5, y + 13);
var extrudeSettings = {amount: 0.01, bevelEnabled:true, bevelSegments:2,steps:2,bevelSize:1,bevelThickness:1};
var geometry = new THREE.ExtrudeGeometry( RocketFinThree,extrudeSettings );
var material = new THREE.MeshLambertMaterial( { color: 0xFD1414 } );
var rocketFinThreeMesh = new THREE.Mesh( geometry, material ) ;
var RocketFinFour = new THREE.Shape();
RocketFinFour.moveTo( x + 0, y + 0 );
RocketFinFour.lineTo( x + 0, y + 16);
RocketFinFour.lineTo( x + 7, y + 20);
RocketFinFour.lineTo( x + 7, y + 15);
RocketFinFour.lineTo( x + 2.5, y + 13);
var extrudeSettings = {amount: 0.01, bevelEnabled:true, bevelSegments:2,steps:2,bevelSize:1,bevelThickness:1};
var geometry = new THREE.ExtrudeGeometry( RocketFinFour,extrudeSettings );
var material = new THREE.MeshLambertMaterial( { color: 0xFD1414 } );
var rocketFinFourMesh = new THREE.Mesh( geometry, material ) ;
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
var planetEarth = createPlanetEarthMesh(new THREE.SphereGeometry(100, 400, 400));
var planetMoon = createMoonMesh (new THREE.SphereGeometry (40,100,100));
var planetSun = createSunMesh (new THREE.SphereGeometry (150,100,100));
// add the sphere to the scene
scene.add(planetEarth);
scene.add(planetMoon);
scene.add(planetSun);
//scene.add(EarthMesh);
//////////////////////////////////////
scene.add(rocketAntennaOneMesh);
scene.add(rocketAntennaTwoMesh);
scene.add(rocketAntennaThreeMesh);
/////////////////////////////////////
scene.add(rocketBodyOneMesh);
scene.add(rocketBodyTwoMesh);
scene.add(rocketBodyThreeMesh);
scene.add(rocketBodyFourMesh);
scene.add(rocketBodyFiveMesh);
scene.add(rocketBodySixMesh);
scene.add(rocketBodySevenMesh);
scene.add(rocketBodyEightMesh);
scene.add(rocketBodyNineMesh);
scene.add(rocketBodyTenMesh);
///////////////////////////////////////
scene.add(rocketBodyUpperMesh);
scene.add(rocketBodyUpperMesh);
///////////////////////////////////////
//scene.add(rocketWindowMesh);
//////////////////////////////////////
scene.add( rocketFinOneMesh );
scene.add( rocketFinTwoMesh );
scene.add( rocketFinThreeMesh );
scene.add( rocketFinFourMesh );
rocketGroup.position.y = 100;
planetEarth.position.y=-100;
planetMoon.position.x=-100;
planetSun.position.x=200;
//Specify the position of the rocket cone
rocketAntennaOneMesh.position.y = 52.05;
rocketAntennaTwoMesh.position.y = 51.3;
rocketAntennaThreeMesh.position.y = 50.8;
rocketBodyOneMesh.position.y = 49.1;
rocketBodyTwoMesh.position.y = 46.1;
rocketBodyThreeMesh.position.y = 43.1;
rocketBodyFourMesh.position.y = 40.1;
rocketBodyFiveMesh.position.y = 36.9;
rocketBodySixMesh.position.y = 32.7;
rocketBodySevenMesh.position.y = 28.5;
rocketBodyEightMesh.position.y = 25.2;
rocketBodyNineMesh.position.y = 22;
rocketBodyTenMesh.position.y = 19;
/////////////////////////////////////////////////////////
rocketBodyUpperMesh.position.y = 16;
rocketBodyLowerMesh.position.y = 14;
////////////////////////////////////////////////////////
//rocketWindowMesh.position.y = 100;
//rocketwindowMesh.position.x = -20;
////////////////////////////////////////////////////
rocketFinOneMesh.position.x=-7;
rocketFinOneMesh.position.y=3;
rocketFinOneMesh.rotation.z = 0.1 * Math.PI;
rocketFinTwoMesh.position.x=6 ;
rocketFinTwoMesh.position.y=3;
rocketFinTwoMesh.rotation.z = 0.1 * Math.PI;
rocketFinTwoMesh.rotation.y = 1 * Math.PI;
rocketFinThreeMesh.position.x=0;
rocketFinThreeMesh.position.y=3;
rocketFinThreeMesh.position.z = 7;
rocketFinThreeMesh.rotation.z = 0.1 * Math.PI;
rocketFinThreeMesh.rotation.y = 0.5 * Math.PI;
rocketFinFourMesh.position.x=0;
rocketFinFourMesh.position.y=3;
rocketFinFourMesh.position.z = -6;
rocketFinFourMesh.rotation.z = 0.1 * Math.PI;
rocketFinFourMesh.rotation.y = 1.5 * Math.PI;
//Add the rocketCone to the lowpolyRocket group
rocketGroup.add(rocketAntennaOneMesh);
rocketGroup.add(rocketAntennaTwoMesh);
rocketGroup.add(rocketAntennaThreeMesh);
/////////////////////////////////////////
rocketGroup.add(rocketBodyOneMesh);
rocketGroup.add(rocketBodyTwoMesh);
rocketGroup.add(rocketBodyThreeMesh);
rocketGroup.add(rocketBodyFourMesh);
rocketGroup.add(rocketBodyFiveMesh);
rocketGroup.add(rocketBodySixMesh);
rocketGroup.add(rocketBodySevenMesh);
rocketGroup.add(rocketBodyEightMesh);
rocketGroup.add(rocketBodyNineMesh);
rocketGroup.add(rocketBodyTenMesh);
//////////////////////////////////////////
rocketGroup.add(rocketBodyUpperMesh);
rocketGroup.add(rocketBodyLowerMesh);
/////////////////////////////////////////
rocketGroup.add(rocketFinOneMesh);
rocketGroup.add(rocketFinTwoMesh);
rocketGroup.add(rocketFinThreeMesh);
rocketGroup.add(rocketFinFourMesh);
//position and point the camera to the center of the scene
camera.position.x = -400;
camera.position.y = 0;
camera.position.z = 3;
camera.lookAt(scene.position);
// add subtle ambient lighting
var ambientLight = new THREE.AmbientLight(0x0c0c0c);
scene.add(ambientLight);
// add spotlight for the shadows
var spotLight = new THREE.PointLight(0xffffff);
spotLight.position.set(-200, 50, 150);
spotLight.castShadow = true;
scene.add(spotLight);
// add the output of the renderer to the html element
$("#WebGL-output").append(renderer.domElement);
var controls = new function() {
this.EarthMoonRotationSpeed = 1.0;
this.EarthMoonRotationSpeed = 1.0;
};
var gui = new dat.GUI();
gui.add(controls, 'EarthMoonRotationSpeed', 0, 5);
// call the render function
var angle = 0;
render();
function render() {
stats.update();
angle += 0.002 * controls.EarthMoonRotationSpeed;
planetEarth.rotation.y = angle;
angle += 0.002 * controls.EarthMoonRotationSpeed;
planetMoon.rotation.y = angle;
// render using requestAnimationFrame
requestAnimationFrame(render);
renderer.render(scene, camera);
}
function createPlanetEarthMesh(geom) {
var loader = new THREE.TextureLoader();
var planetEarthTexture = loader.load("../assets/textures/planets/Earth.png");
var normalEarthTexture = loader.load("../assets/textures/planets/EarthNormal.png");
var planetEarthMaterial = new THREE.MeshPhongMaterial({map: planetEarthTexture, bumpMap: normalEarthTexture});
// create a multimaterial
var planetEarthMesh = THREE.SceneUtils.createMultiMaterialObject(geom, [planetEarthMaterial]);
return planetEarthMesh;
}
function createMoonMesh(geom) {
var loader = new THREE.TextureLoader();
var planetMoonTexture = loader.load("../assets/textures/planets/moon.jpg");
var normalMoonTexture = loader.load("../assets/textures/planets/moonbump.jpg");
var planetMoonMaterial = new THREE.MeshPhongMaterial({map: planetMoonTexture, bumpMap: normalMoonTexture});
// create a multimaterial
var planetMoonMesh = THREE.SceneUtils.createMultiMaterialObject(geom, [planetMoonMaterial]);
return planetMoonMesh;
}
function createSunMesh(geom) {
var loader = new THREE.TextureLoader();
var planetSunTexture = loader.load("../assets/textures/planets/sun.jpg");
//var normalSunTexture = loader.load("../assets/textures/planets/moonbump.jpg");
var planetSunMaterial = new THREE.MeshPhongMaterial({map: planetSunTexture});
//bumpMap: normalMoonTexture
// create a multimaterial
var planetSunMesh = THREE.SceneUtils.createMultiMaterialObject(geom, [planetSunMaterial]);
return planetSunMesh;
}
function initStats() {
var stats = new Stats();
stats.setMode(0); // 0: fps, 1: ms
// Align top-left
stats.domElement.style.position = 'absolute';
stats.domElement.style.left = '0px';
stats.domElement.style.top = '0px';
$("#Stats-output").append(stats.domElement);
return stats;
}
});
body {
margin: 0;
}
<script type="text/javascript" src="https://threejs.org/build/three.js"></script>
<script type="text/javascript" src="https://threejs.org/examples/js/controls/OrbitControls.js"></script>
<script type="text/javascript" src="https://threejs.org/examples/js/libs/stats.min.js"></script>
<script type="text/javascript" src="https://threejs.org/examples/js/libs/dat.gui.min.js"></script>
<script type="text/javascript" src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<script type="text/javascript" src="https://threejs.org/examples/js/utils/SceneUtils.js"></script>
The snippet won't display because "SceneUtils.js" don't seem to work. The project is made in an older version of three.js I'm assuming (unsure how to check the version) since I had to create this project with a default-project. (It is part of an assignment and we were asked to use that version of three.js). When I run the project on my computer it works though since I have that version.
Is there anyway I can link the script properly so you may all view my project and help?
---------------------EDIT-----------------------------------
Okay, so I realized that the error might be to do with my rendering? it seems like the skybox i was making was too big, but when i'd make it much smaller, it would view. Although if I'd look at certain angles, part of the cube with vanish as if it's not being rendered.
As you can see from this screenshot https://imgur.com/a/iYorLxP

You need to narrow down your questions to one issue per question. If you want to figure out how to build a working skybox, there is no reason for all that code including your rocket parts and planets and positions to be part of your question. It creates a huge wall of code that nobody wants to read through on their spare time.
That being said, that's a pretty bad tutorial that's asking you to do a lot of unnecessary work. Three.js already comes with a built-in and easier way to create a skybox: the CubeTextureLoader:
var r = "https://threejs.org/examples/textures/cube/Park3Med/";
var urls = [
r + "px.jpg",
r + "nx.jpg",
r + "py.jpg",
r + "ny.jpg",
r + "pz.jpg",
r + "nz.jpg"
];
var textureCube = new THREE.CubeTextureLoader().load( urls );
scene.background = textureCube;
The code above was taken directly from this example
With this method, you don't have to worry about your camera's position at all; it'll always be in the center of the cube, no matter how far your camera moves in any direction.
And please, learn how to ask a question with a minimal, complete and verifiable example so it makes it easier for people to help you out and solve one problem at a time.

From your edit, it seems the problem is your camera frustum settings. This specifies how far objects can be away from the camera and still be rendered. Some parts of your sky box aren't within the far viewing plane, so are being cut off, resulting in the white background of your scene appearing. To fix this, increase your far frustum to above 1000 when you create your camera:
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 3000);

three.js rendering text to scene

I'm new at three.js.
In my work, I have to made 3d graphical website.
So after searched in google, I found that three.js is suitable to manipulate WebGL conveniently.
In three.js document(https://threejs.org/docs/#api/en/geometries/TextGeometry),
TextGeometry is API for draw text in the scene.
[src.js]
init = () => {
window.addEventListener('resize', resizeWindow);
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 10000);
var controls = new THREE.OrbitControls( camera );
controls.update();
var renderer = new THREE.WebGLRenderer();
renderer.setClearColor(0xdd3b56);
renderer.setSize(window.innerWidth, window.innerHeight);
// Set shadow
renderer.shadowMap.enabled = true;
// Show Axis
var axes = new THREE.AxisHelper(5);
scene.add(axes);
// Text
var loader = new THREE.FontLoader();
loader.load( './helvetiker_regular.typeface.json', function ( font ) {
var geometry = new THREE.TextGeometry( 'Hello three.js!', {
font: font,
size: 80,
height: 5,
curveSegments: 12,
bevelEnabled: true,
bevelThickness: 10,
bevelSize: 8,
bevelSegments: 5
} );
} );
var textMaterial = new THREE.MeshPhongMaterial({color: 0xFE98A0});
var text = new THREE.Mesh(geometry, textMaterial);
text.position.x = 0;
text.position.y = 10;
text.position.z = 10;
scene.add(text);
// Light
var spotLight = new THREE.SpotLight(0xFFFFFF);
spotLight.position.set(-40, 60, 30);
spotLight.castShadow = true;
spotLight.shadow.mapSize.width = 5120;
spotLight.shadow.mapSize.height = 5120;
scene.add(spotLight);
// Camera Setting
camera.position.x = 0;
camera.position.y = 30;
camera.position.z = 30;
camera.lookAt(scene.position);
document.getElementById("threejs_scene").appendChild(renderer.domElement);
renderScene();
function renderScene() {
requestAnimationFrame(renderScene);
controls.update();
renderer.render(scene, camera);
}
}
window.onload = init();
[index.html]
<html>
<head>
<script src="three.js"></script>
<script src="OrbitControls.js"></script>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div id="threejs_scene"></div>
<script src="src.js"></script>
</body>
</html>
When I execute my code, it throws [.WebGL-0x7fb612852000]RENDER WARNING: Render count or primcount is 0. and WebGL: too many errors, no more errors will be reported to the console for this context. errors.
So I searched it at google, it occured when Three.js is trying to render an object that does not exist yet.
But in my code, I already defined it.
var textMaterial = new THREE.MeshPhongMaterial({color: 0xFE98A0});
var text = new THREE.Mesh(geometry, textMaterial);
text.position.x = 0;
text.position.y = 10;
text.position.z = 10;
How can I solve this issue?
My last goal is display text in the scene.
Thanks.

window.onload = function(params) {
/*
*
* SET UP THE WORLD
*
*/
//set up the ratio
var gWidth = window.innerWidth;
var gHeight = window.innerHeight;
var ratio = gWidth / gHeight;
var borders = [40, 24] //indicate where the ball needs to move in mirror position
var light = new THREE.AmbientLight(0xffffff, 0.5);
var light1 = new THREE.PointLight(0xffffff, 0.5);
light1.position.set(0, 5, 0);
light1.castShadow = true;
// set the renderer
var renderer = new THREE.WebGLRenderer();
var camera = new THREE.PerspectiveCamera();
camera.position.set(10, 10, 10);
camera.lookAt(new THREE.Vector3(0, 0, 0));
//properties for casting shadow
renderer.shadowMap.enabled = true;
renderer.shadowMap.type = THREE.PCFSoftShadowMap;
renderer.setSize(gWidth, gHeight);
document.body.appendChild(renderer.domElement);
var scene = new THREE.Scene();
scene.add(light);
scene.add(light1);
var ground = new THREE.Mesh(new THREE.BoxGeometry(10, 0.5, 10), new THREE.MeshLambertMaterial())
ground.receiveShadow = true;
scene.add(ground)
var geometry;
var loader = new THREE.FontLoader();
var mesh;
requestAnimationFrame(render);
function render() {
if (mesh) {
mesh.rotation.y += 0.01;
mesh.rotation.z += 0.007;
}
renderer.render(scene, camera);
requestAnimationFrame(render);
}
loader.load('https://cdn.rawgit.com/mrdoob/three.js/master/examples/fonts/helvetiker_regular.typeface.json', function(font) {
var geometry = new THREE.TextGeometry('Hello three.js!', {
font: font,
size: 80,
height: 5,
curveSegments: 12,
bevelEnabled: true,
bevelThickness: 10,
bevelSize: 8,
bevelSegments: 5
});
var material = new THREE.MeshLambertMaterial({
color: 0xF3FFE2
});
mesh = new THREE.Mesh(geometry, material);
mesh.position.set(0, 2, 0);
mesh.scale.multiplyScalar(0.01)
mesh.castShadow = true;
scene.add(mesh);
var canv = document.createElement('canvas')
canv.width = canv.height = 256;
var ctx = canv.getContext('2d')
ctx.fillStyle = 'white';
ctx.fillRect(0, 0, canv.width, canv.height);
ctx.fillStyle = 'black'
ctx.fillText("HERE IS SOME 2D TEXT", 20, 20);
var tex = new THREE.Texture(canv);
tex.needsUpdate = true;
var mat = new THREE.MeshBasicMaterial({
map: tex
});
var plane = new THREE.Mesh(new THREE.PlaneGeometry(10, 10), mat);
scene.add(plane)
});
}
body {
padding: 0;
margin: 0;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/96/three.min.js"></script>
<html>
<head>
</head>
<body>
</body>
</html>

Object on camera rotation isn't centered three js

I've created a 3D marquee by bending two meshes into a circle, however I'm having trouble getting them to center to the camera.
Please reference https://jsfiddle.net/siiiick/1jh49e1u/
var text = "EXPRESS FREE SHIPPING WORLDWIDE OVER 200€ / 200% 150$ ";
var geoParams = {
size: 208,
height: 1,
curveSegments: 4,
font: "junicode",
// bevelEnabled: false,
// bevelThickness: 1,
// bevelSize: 1,
}
var textMaterial = new THREE.MeshPhongMaterial({
color: 0x000000
});
var deg = Math.PI / 4.8;
var geoTop = new THREE.TextGeometry(text, geoParams);
var textTop = new THREE.Mesh(geoTop, textMaterial);
geoTop.computeBoundingBox();
textWidth = geoTop.boundingBox.max.x - geoTop.boundingBox.min.x;
controls.target.set(-textWidth * .1 - 10, 0, -textWidth / 3.8);
textTop.rotation.y = Math.PI;
modifier.set(new THREE.Vector3(0, 0, -1), new THREE.Vector3(0, 1, 0), deg).modify(textTop.geometry);
modifier.set(new THREE.Vector3(0, 0, -1), new THREE.Vector3(0, 1, 0), deg).modify(textTop.geometry);
textTop.position.set(-0.5 * textWidth + textWidth * .867, 0, -textWidth * .577);
var geoBot = new THREE.TextGeometry(text, geoParams);
var textBot = new THREE.Mesh(geoBot, textMaterial);
modifier.set(new THREE.Vector3(0, 0, -1), new THREE.Vector3(0, 1, 0), deg).modify(textBot.geometry);
modifier.set(new THREE.Vector3(0, 0, -1), new THREE.Vector3(0, 1, 0), deg).modify(textBot.geometry);
textBot.position.set(-0.5 * textWidth, 0, 0);
scene.add(textTop);
scene.add(textBot);
As you can see after a few seconds the the marquee isn't centered. Do you think it's as a result of the camera positioning or the mesh positioning?
Thanks

//Testing some easy camera centering code...
var renderer = new THREE.WebGLRenderer();
var w = 300;
var h = 200;
renderer.setSize(w, h);
document.body.appendChild(renderer.domElement);
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(
45, // Field of view
w / h, // Aspect ratio
0.1, // Near
10000 // Far
);
camera.position.set(15, 10, 15);
camera.lookAt(scene.position);
controls = new THREE.OrbitControls(camera, renderer.domElement);
var light = new THREE.PointLight(0xFFFF00);
light.position.set(20, 20, 20);
scene.add(light);
var light1 = new THREE.AmbientLight(0x808080);
light1.position.set(20, 20, 20);
scene.add(light1);
var light2 = new THREE.PointLight(0x00FFFF);
light2.position.set(-20, 20, -20);
scene.add(light2);
var light3 = new THREE.PointLight(0xFF00FF);
light3.position.set(-20, -20, -20);
scene.add(light3);
var sphereGeom = new THREE.SphereGeometry(5, 16, 16);
var material = new THREE.MeshLambertMaterial({
color: 0x808080
});
var mesh = new THREE.Mesh(sphereGeom, material);
scene.add(mesh);
var mesh1 = new THREE.Mesh(sphereGeom, material);
mesh1.position.x += 5;
mesh.add(mesh1);
var mesh2 = new THREE.Mesh(sphereGeom, material);
mesh2.position.y += 5;
mesh2.position.x += 9;
mesh.add(mesh2);
var grp0 = mesh;
var mesh = new THREE.Mesh(sphereGeom, material);
scene.add(mesh);
mesh.position.x += 30;
var mesh1 = new THREE.Mesh(sphereGeom, material);
mesh1.position.x += 15;
mesh.add(mesh1);
var mesh2 = new THREE.Mesh(sphereGeom, material);
mesh2.position.y += 12;
mesh2.position.x += 9;
mesh.add(mesh2);
renderer.setClearColor(0xdddddd, 1);
var grp1 = mesh;
var curGrp;
var targPos;
var targLook;
var tmp = new THREE.Vector3();
var vbox;
function focusCam(targ) {
const boundingBox = new THREE.Box3();
boundingBox.setFromObject(targ)
var center = boundingBox.getCenter(new THREE.Vector3())
var sz = boundingBox.getSize(new THREE.Vector3());
var minZ = sz.length() + camera.near;
var lookOffset = new THREE.Vector3(0, 0, 1);
lookOffset.applyQuaternion(camera.quaternion);
lookOffset.multiplyScalar(minZ)
targLook = center.clone();
targPos = new THREE.Vector3().copy(center).add(lookOffset)
if (!vbox) {
vbox = new THREE.Mesh(new THREE.BoxGeometry(1, 1, 1), material.clone())
vbox.material.transparent = true;
vbox.material.opacity = 0.15;
scene.add(vbox)
}
vbox.scale.copy(sz);
vbox.position.copy(center);
}
renderer.domElement.onclick = (evt) => {
if (!curGrp) {
curGrp = grp0;
} else if (curGrp === grp0) {
curGrp = grp1
} else if (curGrp === grp1) {
curGrp = grp0
}
focusCam(curGrp);
}
(function animate() {
requestAnimationFrame(animate);
controls.update();
renderer.render(scene, camera);
if (targPos) {
tmp.copy(targPos).sub(camera.position).multiplyScalar(0.01)
if (tmp.length() > 0.01) {
camera.position.add(tmp)
controls.target.add(tmp);//copy(targLook);
//camera.lookAt(targLook);
} else targPos = undefined;
}
})();
<script src="https://threejs.org/build/three.min.js"></script>
<script src="https://cdn.rawgit.com/mrdoob/three.js/master/examples/js/controls/OrbitControls.js"></script>

Can raycasting be done on a html element in three.js?

Here is my code which has embedded html page in three.js . I want to click the html page and make a popup. So is there any way i can do that because i think ray casting can only be done to three.js elements and not the html one.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>ADN CSS3D Demo</title>
<style>
body {
background-color: #ffffff;
margin: 0;
overflow: hidden;
}
</style>
</head>
<body>
<script src="http://code.jquery.com/jquery-2.1.4.min.js"></script>
<script src="https://rawgit.com/mrdoob/three.js/master/build/three.min.js"></script>
<script src="https://rawgit.com/mrdoob/three.js/master/examples/js/controls/TrackballControls.js"></script>
<script src="https://rawgit.com/mrdoob/three.js/master/examples/js/renderers/CSS3DRenderer.js"></script>
<script>
var controls, camera, glScene, cssScene, glRenderer, cssRenderer;
///////////////////////////////////////////////////////////////////
// Creates WebGL Renderer
//
///////////////////////////////////////////////////////////////////
function createGlRenderer() {
var glRenderer = new THREE.WebGLRenderer({alpha:true});
glRenderer.setClearColor(0xECF8FF);
glRenderer.setPixelRatio(window.devicePixelRatio);
glRenderer.setSize(window.innerWidth, window.innerHeight);
glRenderer.domElement.style.position = 'absolute';
glRenderer.domElement.style.zIndex = 1;
glRenderer.domElement.style.top = 0;
return glRenderer;
}
///////////////////////////////////////////////////////////////////
// Creates CSS Renderer
//
///////////////////////////////////////////////////////////////////
function createCssRenderer() {
var cssRenderer = new THREE.CSS3DRenderer();
cssRenderer.setSize(window.innerWidth, window.innerHeight);
cssRenderer.domElement.style.position = 'absolute';
glRenderer.domElement.style.zIndex = 0;
cssRenderer.domElement.style.top = 0;
return cssRenderer;
}
///////////////////////////////////////////////////////////////////
// Creates plane mesh
//
///////////////////////////////////////////////////////////////////
function createPlane(w, h, position, rotation) {
var material = new THREE.MeshBasicMaterial({
color: 0x000000,
opacity: 0.0,
side: THREE.DoubleSide
});
var geometry = new THREE.PlaneGeometry(w, h);
var mesh = new THREE.Mesh(geometry, material);
mesh.position.x = position.x;
mesh.position.y = position.y;
mesh.position.z = position.z;
mesh.rotation.x = rotation.x;
mesh.rotation.y = rotation.y;
mesh.rotation.z = rotation.z;
return mesh;
}
///////////////////////////////////////////////////////////////////
// Creates CSS object
//
///////////////////////////////////////////////////////////////////
function createCssObject(w, h, position, rotation, url) {
var html = [
'<div style="width:' + w + 'px; height:' + h + 'px;">',
'<iframe src="' + url + '" width="' + w + '" height="' + h + '">',
'</iframe>',
'</div>'
].join('\n');
var div = document.createElement('div');
$(div).html(html);
var cssObject = new THREE.CSS3DObject(div);
cssObject.position.x = position.x;
cssObject.position.y = position.y;
cssObject.position.z = position.z;
cssObject.rotation.x = rotation.x;
cssObject.rotation.y = rotation.y;
cssObject.rotation.z = rotation.z;
return cssObject;
}
///////////////////////////////////////////////////////////////////
// Creates 3d webpage object
//
///////////////////////////////////////////////////////////////////
function create3dPage(w, h, position, rotation, url) {
var plane = createPlane(
w, h,
position,
rotation);
glScene.add(plane);
var cssObject = createCssObject(
w, h,
position,
rotation,
url);
cssScene.add(cssObject);
}
///////////////////////////////////////////////////////////////////
// Creates material with random color
//
///////////////////////////////////////////////////////////////////
function createColoredMaterial() {
var material = new THREE.MeshBasicMaterial({
color: Math.floor(Math.random() * 16777215),
shading: THREE.FlatShading,
side: THREE.DoubleSide
});
return material;
}
///////////////////////////////////////////////////////////////////
// Creates 3D geometry to place in the scene
//
///////////////////////////////////////////////////////////////////
function create3dGeometry() {
var mesh1 = new THREE.Mesh(
new THREE.CylinderGeometry(0, 200, 300, 20, 4),
createColoredMaterial());
mesh1.position.x = 0;
mesh1.position.y = -300;
mesh1.position.z = 400;
glScene.add(mesh1);
var mesh2 = new THREE.Mesh(
new THREE.BoxGeometry(200, 200, 200),
createColoredMaterial());
mesh2.position.x = -300;
mesh2.position.y = -300;
mesh2.position.z = 400;
glScene.add(mesh2);
var mesh3 = new THREE.Mesh(
new THREE.SphereGeometry(100, 128, 128),
createColoredMaterial());
mesh3.position.x = 500;
mesh3.position.y = -300;
mesh3.position.z = 400;
glScene.add(mesh3);
}
///////////////////////////////////////////////////////////////////
// Initializes scene
//
///////////////////////////////////////////////////////////////////
function initialize() {
camera = new THREE.PerspectiveCamera(
45,
window.innerWidth / window.innerHeight,
1,
10000);
camera.position.set(0, 100, 3000);
controls = new THREE.TrackballControls(camera);
glRenderer = createGlRenderer();
cssRenderer = createCssRenderer();
//document.body.appendChild(glRenderer.domElement);
document.body.appendChild(cssRenderer.domElement);
cssRenderer.domElement.appendChild(glRenderer.domElement);
glScene = new THREE.Scene();
cssScene = new THREE.Scene();
var ambientLight = new THREE.AmbientLight(0x555555);
glScene.add(ambientLight);
var directionalLight = new THREE.DirectionalLight(0xffffff);
directionalLight.position.set( -.5, .5, -1.5 ).normalize();
glScene.add(directionalLight);
create3dPage(
1000, 1000,
new THREE.Vector3(-1050, 0, 400),
new THREE.Vector3(0, 45 * Math.PI / 180, 0),
'http://viewer.autodesk.io/node/ng-gallery/#/home');
create3dPage(
900, 1000,
new THREE.Vector3(0, 0, 0),
new THREE.Vector3(0, 0, 0),
'http://adndevblog.typepad.com/cloud_and_mobile');
create3dPage(
1000, 1000,
new THREE.Vector3(1050, 0, 400),
new THREE.Vector3(0, -45 * Math.PI / 180, 0),
'http://mongo.autodesk.io');
create3dGeometry();
update();
}
///////////////////////////////////////////////////////////////////
// Updates scene
//
///////////////////////////////////////////////////////////////////
function update() {
controls.update();
glRenderer.render(glScene, camera);
cssRenderer.render(cssScene, camera);
requestAnimationFrame(update);
}
///////////////////////////////////////////////////////////////////
// On document ready
//
///////////////////////////////////////////////////////////////////
$(document ).ready(function() {
initialize();
});
</script>
</body>
</html>
I have tried raycasting using the description given on three.js site but the browser is not showing an results. Can somebody help me with my code