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Multiple Three.js canvases in the same html page

I would like to have more than one Three.js transition in one page but it only displays the second instance. I know it is possible because I have read some other questions on the subject but I'm very new to Three.js and I still don't understand how I would do it in this specific instance. Thanks in advance!
Codepen here:
https://codepen.io/mastroneel/pen/pQqWKd
window.onload = init;
console.ward = function() {}; // what warnings?
function init() {
var root = new THREERoot({
createCameraControls: !true,
antialias: (window.devicePixelRatio === 1),
fov: 80
});
root.renderer.setClearColor(0x000000, 0);
root.renderer.setPixelRatio(window.devicePixelRatio || 1);
root.camera.position.set(0, 0, 60);
var width = 100;
var height = 100;
var slide = new Slide(width, height, 'out');
var l1 = new THREE.ImageLoader();
l1.setCrossOrigin('Anonymous');
slide.setImage(l1.load('https://image.ibb.co/f6mVsA/helmet.png'));
root.scene.add(slide);
var slide2 = new Slide(width, height, 'in');
var l2 = new THREE.ImageLoader();
l2.setCrossOrigin('Anonymous');
slide2.setImage(l2.load('https://image.ibb.co/mb1KkV/player.png'));
root.scene.add(slide2);
var tl = new TimelineMax({repeat:-1, repeatDelay:1.0, yoyo: true});
tl.add(slide.transition(), 0);
tl.add(slide2.transition(), 0);
createTweenScrubber(tl);
window.addEventListener('keyup', function(e) {
if (e.keyCode === 80) {
tl.paused(!tl.paused());
}
});
}
////////////////////
// CLASSES
////////////////////
function Slide(width, height, animationPhase) {
var plane = new THREE.PlaneGeometry(width, height, width * 2, height * 2);
THREE.BAS.Utils.separateFaces(plane);
var geometry = new SlideGeometry(plane);
geometry.bufferUVs();
var aAnimation = geometry.createAttribute('aAnimation', 2);
var aStartPosition = geometry.createAttribute('aStartPosition', 3);
var aControl0 = geometry.createAttribute('aControl0', 3);
var aControl1 = geometry.createAttribute('aControl1', 3);
var aEndPosition = geometry.createAttribute('aEndPosition', 3);
var i, i2, i3, i4, v;
var minDuration = 0.8;
var maxDuration = 1.2;
var maxDelayX = 0.9;
var maxDelayY = 0.125;
var stretch = 0.11;
this.totalDuration = maxDuration + maxDelayX + maxDelayY + stretch;
var startPosition = new THREE.Vector3();
var control0 = new THREE.Vector3();
var control1 = new THREE.Vector3();
var endPosition = new THREE.Vector3();
var tempPoint = new THREE.Vector3();
function getControlPoint0(centroid) {
var signY = Math.sign(centroid.y);
tempPoint.x = THREE.Math.randFloat(0.1, 0.3) * 50;
tempPoint.y = signY * THREE.Math.randFloat(0.1, 0.3) * 70;
tempPoint.z = THREE.Math.randFloatSpread(20);
return tempPoint;
}
function getControlPoint1(centroid) {
var signY = Math.sign(centroid.y);
tempPoint.x = THREE.Math.randFloat(0.3, 0.6) * 50;
tempPoint.y = -signY * THREE.Math.randFloat(0.3, 0.6) * 70;
tempPoint.z = THREE.Math.randFloatSpread(20);
return tempPoint;
}
for (i = 0, i2 = 0, i3 = 0, i4 = 0; i < geometry.faceCount; i++, i2 += 6, i3 += 9, i4 += 12) {
var face = plane.faces[i];
var centroid = THREE.BAS.Utils.computeCentroid(plane, face);
// animation
var duration = THREE.Math.randFloat(minDuration, maxDuration);
var delayX = THREE.Math.mapLinear(centroid.x, -width * 0.5, width * 0.5, 0.0, maxDelayX);
var delayY;
if (animationPhase === 'in') {
delayY = THREE.Math.mapLinear(Math.abs(centroid.y), 0, height * 0.5, 0.0, maxDelayY)
}
else {
delayY = THREE.Math.mapLinear(Math.abs(centroid.y), 0, height * 0.5, maxDelayY, 0.0)
}
for (v = 0; v < 6; v += 2) {
aAnimation.array[i2 + v] = delayX + delayY + (Math.random() * stretch * duration);
aAnimation.array[i2 + v + 1] = duration;
}
// positions
endPosition.copy(centroid);
startPosition.copy(centroid);
if (animationPhase === 'in') {
control0.copy(centroid).sub(getControlPoint0(centroid));
control1.copy(centroid).sub(getControlPoint1(centroid));
}
else { // out
control0.copy(centroid).add(getControlPoint0(centroid));
control1.copy(centroid).add(getControlPoint1(centroid));
}
for (v = 0; v < 9; v += 3) {
aStartPosition.array[i3 + v] = startPosition.x;
aStartPosition.array[i3 + v + 1] = startPosition.y;
aStartPosition.array[i3 + v + 2] = startPosition.z;
aControl0.array[i3 + v] = control0.x;
aControl0.array[i3 + v + 1] = control0.y;
aControl0.array[i3 + v + 2] = control0.z;
aControl1.array[i3 + v] = control1.x;
aControl1.array[i3 + v + 1] = control1.y;
aControl1.array[i3 + v + 2] = control1.z;
aEndPosition.array[i3 + v] = endPosition.x;
aEndPosition.array[i3 + v + 1] = endPosition.y;
aEndPosition.array[i3 + v + 2] = endPosition.z;
}
}
var material = new THREE.BAS.BasicAnimationMaterial(
{
shading: THREE.FlatShading,
side: THREE.DoubleSide,
uniforms: {
uTime: {type: 'f', value: 0}
},
shaderFunctions: [
THREE.BAS.ShaderChunk['cubic_bezier'],
//THREE.BAS.ShaderChunk[(animationPhase === 'in' ? 'ease_out_cubic' : 'ease_in_cubic')],
THREE.BAS.ShaderChunk['ease_in_out_cubic'],
THREE.BAS.ShaderChunk['quaternion_rotation']
],
shaderParameters: [
'uniform float uTime;',
'attribute vec2 aAnimation;',
'attribute vec3 aStartPosition;',
'attribute vec3 aControl0;',
'attribute vec3 aControl1;',
'attribute vec3 aEndPosition;',
],
shaderVertexInit: [
'float tDelay = aAnimation.x;',
'float tDuration = aAnimation.y;',
'float tTime = clamp(uTime - tDelay, 0.0, tDuration);',
'float tProgress = ease(tTime, 0.0, 1.0, tDuration);'
//'float tProgress = tTime / tDuration;'
],
shaderTransformPosition: [
(animationPhase === 'in' ? 'transformed *= tProgress;' : 'transformed *= 1.0 - tProgress;'),
'transformed += cubicBezier(aStartPosition, aControl0, aControl1, aEndPosition, tProgress);'
]
},
{
map: new THREE.Texture(),
}
);
THREE.Mesh.call(this, geometry, material);
this.frustumCulled = false;
}
Slide.prototype = Object.create(THREE.Mesh.prototype);
Slide.prototype.constructor = Slide;
Object.defineProperty(Slide.prototype, 'time', {
get: function () {
return this.material.uniforms['uTime'].value;
},
set: function (v) {
this.material.uniforms['uTime'].value = v;
}
});
Slide.prototype.setImage = function(image) {
this.material.uniforms.map.value.image = image;
this.material.uniforms.map.value.needsUpdate = true;
};
Slide.prototype.transition = function() {
return TweenMax.fromTo(this, 3.0, {time:0.0}, {time:this.totalDuration, ease:Power0.easeInOut});
};
function SlideGeometry(model) {
THREE.BAS.ModelBufferGeometry.call(this, model);
}
SlideGeometry.prototype = Object.create(THREE.BAS.ModelBufferGeometry.prototype);
SlideGeometry.prototype.constructor = SlideGeometry;
SlideGeometry.prototype.bufferPositions = function () {
var positionBuffer = this.createAttribute('position', 3).array;
for (var i = 0; i < this.faceCount; i++) {
var face = this.modelGeometry.faces[i];
var centroid = THREE.BAS.Utils.computeCentroid(this.modelGeometry, face);
var a = this.modelGeometry.vertices[face.a];
var b = this.modelGeometry.vertices[face.b];
var c = this.modelGeometry.vertices[face.c];
positionBuffer[face.a * 3] = a.x - centroid.x;
positionBuffer[face.a * 3 + 1] = a.y - centroid.y;
positionBuffer[face.a * 3 + 2] = a.z - centroid.z;
positionBuffer[face.b * 3] = b.x - centroid.x;
positionBuffer[face.b * 3 + 1] = b.y - centroid.y;
positionBuffer[face.b * 3 + 2] = b.z - centroid.z;
positionBuffer[face.c * 3] = c.x - centroid.x;
positionBuffer[face.c * 3 + 1] = c.y - centroid.y;
positionBuffer[face.c * 3 + 2] = c.z - centroid.z;
}
};
function THREERoot(params) {
params = utils.extend({
fov: 60,
zNear: 10,
zFar: 100000,
createCameraControls: true
}, params);
this.renderer = new THREE.WebGLRenderer({
antialias: params.antialias,
alpha: true
});
this.renderer.setPixelRatio(Math.min(2, window.devicePixelRatio || 1));
document.getElementById('three-container1').appendChild(this.renderer.domElement);
this.camera = new THREE.PerspectiveCamera(
params.fov,
window.innerWidth / window.innerHeight,
params.zNear,
params.zfar
);
this.scene = new THREE.Scene();
if (params.createCameraControls) {
this.controls = new THREE.OrbitControls(this.camera, this.renderer.domElement);
}
this.resize = this.resize.bind(this);
this.tick = this.tick.bind(this);
this.resize();
this.tick();
window.addEventListener('resize', this.resize, false);
}
THREERoot.prototype = {
tick: function () {
this.update();
this.render();
requestAnimationFrame(this.tick);
},
update: function () {
this.controls && this.controls.update();
},
render: function () {
this.renderer.render(this.scene, this.camera);
},
resize: function () {
this.camera.aspect = window.innerWidth / window.innerHeight;
this.camera.updateProjectionMatrix();
this.renderer.setSize(window.innerWidth, window.innerHeight);
}
};
////////////////////
// UTILS
////////////////////
var utils = {
extend: function (dst, src) {
for (var key in src) {
dst[key] = src[key];
}
return dst;
},
randSign: function () {
return Math.random() > 0.5 ? 1 : -1;
},
ease: function (ease, t, b, c, d) {
return b + ease.getRatio(t / d) * c;
},
fibSpherePoint: (function () {
var vec = {x: 0, y: 0, z: 0};
var G = Math.PI * (3 - Math.sqrt(5));
return function (i, n, radius) {
var step = 2.0 / n;
var r, phi;
vec.y = i * step - 1 + (step * 0.5);
r = Math.sqrt(1 - vec.y * vec.y);
phi = i * G;
vec.x = Math.cos(phi) * r;
vec.z = Math.sin(phi) * r;
radius = radius || 1;
vec.x *= radius;
vec.y *= radius;
vec.z *= radius;
return vec;
}
})(),
spherePoint: (function () {
return function (u, v) {
u === undefined && (u = Math.random());
v === undefined && (v = Math.random());
var theta = 2 * Math.PI * u;
var phi = Math.acos(2 * v - 1);
var vec = {};
vec.x = (Math.sin(phi) * Math.cos(theta));
vec.y = (Math.sin(phi) * Math.sin(theta));
vec.z = (Math.cos(phi));
return vec;
}
})()
};
function createTweenScrubber(tween, seekSpeed) {
seekSpeed = seekSpeed || 0.001;
function stop() {
TweenMax.to(tween, 1, {timeScale:0});
}
function resume() {
TweenMax.to(tween, 1, {timeScale:1});
}
function seek(dx) {
var progress = tween.progress();
var p = THREE.Math.clamp((progress + (dx * seekSpeed)), 0, 1);
tween.progress(p);
}
var _cx = 0;
// desktop
var mouseDown = false;
document.body.style.cursor = 'pointer';
window.addEventListener('mousedown', function(e) {
mouseDown = true;
document.body.style.cursor = 'ew-resize';
_cx = e.clientX;
stop();
});
window.addEventListener('mouseup', function(e) {
mouseDown = false;
document.body.style.cursor = 'pointer';
resume();
});
window.addEventListener('mousemove', function(e) {
if (mouseDown === true) {
var cx = e.clientX;
var dx = cx - _cx;
_cx = cx;
seek(dx);
}
});
// mobile
window.addEventListener('touchstart', function(e) {
_cx = e.touches[0].clientX;
stop();
e.preventDefault();
});
window.addEventListener('touchend', function(e) {
resume();
e.preventDefault();
});
window.addEventListener('touchmove', function(e) {
var cx = e.touches[0].clientX;
var dx = cx - _cx;
_cx = cx;
seek(dx);
e.preventDefault();
});
}
window.onload = init;
console.ward = function() {}; // what warnings?
function init() {
var root = new THREERoot({
createCameraControls: !true,
antialias: (window.devicePixelRatio === 1),
fov: 80
});
root.renderer.setClearColor(0x000000, 0);
root.renderer.setPixelRatio(window.devicePixelRatio || 1);
root.camera.position.set(0, 0, 60);
var width = 100;
var height = 100;
var slide = new Slide(width, height, 'out');
var l1 = new THREE.ImageLoader();
l1.setCrossOrigin('Anonymous');
slide.setImage(l1.load('https://image.ibb.co/f6mVsA/helmet.png'));
root.scene.add(slide);
var slide2 = new Slide(width, height, 'in');
var l2 = new THREE.ImageLoader();
l2.setCrossOrigin('Anonymous');
slide2.setImage(l2.load('https://image.ibb.co/mb1KkV/player.png'));
root.scene.add(slide2);
var tl = new TimelineMax({repeat:-1, repeatDelay:1.0, yoyo: true});
tl.add(slide.transition(), 0);
tl.add(slide2.transition(), 0);
createTweenScrubber(tl);
window.addEventListener('keyup', function(e) {
if (e.keyCode === 80) {
tl.paused(!tl.paused());
}
});
}
////////////////////
// CLASSES
////////////////////
function Slide(width, height, animationPhase) {
var plane = new THREE.PlaneGeometry(width, height, width * 2, height * 2);
THREE.BAS.Utils.separateFaces(plane);
var geometry = new SlideGeometry(plane);
geometry.bufferUVs();
var aAnimation = geometry.createAttribute('aAnimation', 2);
var aStartPosition = geometry.createAttribute('aStartPosition', 3);
var aControl0 = geometry.createAttribute('aControl0', 3);
var aControl1 = geometry.createAttribute('aControl1', 3);
var aEndPosition = geometry.createAttribute('aEndPosition', 3);
var i, i2, i3, i4, v;
var minDuration = 0.8;
var maxDuration = 1.2;
var maxDelayX = 0.9;
var maxDelayY = 0.125;
var stretch = 0.11;
this.totalDuration = maxDuration + maxDelayX + maxDelayY + stretch;
var startPosition = new THREE.Vector3();
var control0 = new THREE.Vector3();
var control1 = new THREE.Vector3();
var endPosition = new THREE.Vector3();
var tempPoint = new THREE.Vector3();
function getControlPoint0(centroid) {
var signY = Math.sign(centroid.y);
tempPoint.x = THREE.Math.randFloat(0.1, 0.3) * 50;
tempPoint.y = signY * THREE.Math.randFloat(0.1, 0.3) * 70;
tempPoint.z = THREE.Math.randFloatSpread(20);
return tempPoint;
}
function getControlPoint1(centroid) {
var signY = Math.sign(centroid.y);
tempPoint.x = THREE.Math.randFloat(0.3, 0.6) * 50;
tempPoint.y = -signY * THREE.Math.randFloat(0.3, 0.6) * 70;
tempPoint.z = THREE.Math.randFloatSpread(20);
return tempPoint;
}
for (i = 0, i2 = 0, i3 = 0, i4 = 0; i < geometry.faceCount; i++, i2 += 6, i3 += 9, i4 += 12) {
var face = plane.faces[i];
var centroid = THREE.BAS.Utils.computeCentroid(plane, face);
// animation
var duration = THREE.Math.randFloat(minDuration, maxDuration);
var delayX = THREE.Math.mapLinear(centroid.x, -width * 0.5, width * 0.5, 0.0, maxDelayX);
var delayY;
if (animationPhase === 'in') {
delayY = THREE.Math.mapLinear(Math.abs(centroid.y), 0, height * 0.5, 0.0, maxDelayY)
}
else {
delayY = THREE.Math.mapLinear(Math.abs(centroid.y), 0, height * 0.5, maxDelayY, 0.0)
}
for (v = 0; v < 6; v += 2) {
aAnimation.array[i2 + v] = delayX + delayY + (Math.random() * stretch * duration);
aAnimation.array[i2 + v + 1] = duration;
}
// positions
endPosition.copy(centroid);
startPosition.copy(centroid);
if (animationPhase === 'in') {
control0.copy(centroid).sub(getControlPoint0(centroid));
control1.copy(centroid).sub(getControlPoint1(centroid));
}
else { // out
control0.copy(centroid).add(getControlPoint0(centroid));
control1.copy(centroid).add(getControlPoint1(centroid));
}
for (v = 0; v < 9; v += 3) {
aStartPosition.array[i3 + v] = startPosition.x;
aStartPosition.array[i3 + v + 1] = startPosition.y;
aStartPosition.array[i3 + v + 2] = startPosition.z;
aControl0.array[i3 + v] = control0.x;
aControl0.array[i3 + v + 1] = control0.y;
aControl0.array[i3 + v + 2] = control0.z;
aControl1.array[i3 + v] = control1.x;
aControl1.array[i3 + v + 1] = control1.y;
aControl1.array[i3 + v + 2] = control1.z;
aEndPosition.array[i3 + v] = endPosition.x;
aEndPosition.array[i3 + v + 1] = endPosition.y;
aEndPosition.array[i3 + v + 2] = endPosition.z;
}
}
var material = new THREE.BAS.BasicAnimationMaterial(
{
shading: THREE.FlatShading,
side: THREE.DoubleSide,
uniforms: {
uTime: {type: 'f', value: 0}
},
shaderFunctions: [
THREE.BAS.ShaderChunk['cubic_bezier'],
//THREE.BAS.ShaderChunk[(animationPhase === 'in' ? 'ease_out_cubic' : 'ease_in_cubic')],
THREE.BAS.ShaderChunk['ease_in_out_cubic'],
THREE.BAS.ShaderChunk['quaternion_rotation']
],
shaderParameters: [
'uniform float uTime;',
'attribute vec2 aAnimation;',
'attribute vec3 aStartPosition;',
'attribute vec3 aControl0;',
'attribute vec3 aControl1;',
'attribute vec3 aEndPosition;',
],
shaderVertexInit: [
'float tDelay = aAnimation.x;',
'float tDuration = aAnimation.y;',
'float tTime = clamp(uTime - tDelay, 0.0, tDuration);',
'float tProgress = ease(tTime, 0.0, 1.0, tDuration);'
//'float tProgress = tTime / tDuration;'
],
shaderTransformPosition: [
(animationPhase === 'in' ? 'transformed *= tProgress;' : 'transformed *= 1.0 - tProgress;'),
'transformed += cubicBezier(aStartPosition, aControl0, aControl1, aEndPosition, tProgress);'
]
},
{
map: new THREE.Texture(),
}
);
THREE.Mesh.call(this, geometry, material);
this.frustumCulled = false;
}
Slide.prototype = Object.create(THREE.Mesh.prototype);
Slide.prototype.constructor = Slide;
Object.defineProperty(Slide.prototype, 'time', {
get: function () {
return this.material.uniforms['uTime'].value;
},
set: function (v) {
this.material.uniforms['uTime'].value = v;
}
});
Slide.prototype.setImage = function(image) {
this.material.uniforms.map.value.image = image;
this.material.uniforms.map.value.needsUpdate = true;
};
Slide.prototype.transition = function() {
return TweenMax.fromTo(this, 3.0, {time:0.0}, {time:this.totalDuration, ease:Power0.easeInOut});
};
function SlideGeometry(model) {
THREE.BAS.ModelBufferGeometry.call(this, model);
}
SlideGeometry.prototype = Object.create(THREE.BAS.ModelBufferGeometry.prototype);
SlideGeometry.prototype.constructor = SlideGeometry;
SlideGeometry.prototype.bufferPositions = function () {
var positionBuffer = this.createAttribute('position', 3).array;
for (var i = 0; i < this.faceCount; i++) {
var face = this.modelGeometry.faces[i];
var centroid = THREE.BAS.Utils.computeCentroid(this.modelGeometry, face);
var a = this.modelGeometry.vertices[face.a];
var b = this.modelGeometry.vertices[face.b];
var c = this.modelGeometry.vertices[face.c];
positionBuffer[face.a * 3] = a.x - centroid.x;
positionBuffer[face.a * 3 + 1] = a.y - centroid.y;
positionBuffer[face.a * 3 + 2] = a.z - centroid.z;
positionBuffer[face.b * 3] = b.x - centroid.x;
positionBuffer[face.b * 3 + 1] = b.y - centroid.y;
positionBuffer[face.b * 3 + 2] = b.z - centroid.z;
positionBuffer[face.c * 3] = c.x - centroid.x;
positionBuffer[face.c * 3 + 1] = c.y - centroid.y;
positionBuffer[face.c * 3 + 2] = c.z - centroid.z;
}
};
function THREERoot(params) {
params = utils.extend({
fov: 60,
zNear: 10,
zFar: 100000,
createCameraControls: true
}, params);
this.renderer = new THREE.WebGLRenderer({
antialias: params.antialias,
alpha: true
});
this.renderer.setPixelRatio(Math.min(2, window.devicePixelRatio || 1));
document.getElementById('three-container2').appendChild(this.renderer.domElement);
this.camera = new THREE.PerspectiveCamera(
params.fov,
window.innerWidth / window.innerHeight,
params.zNear,
params.zfar
);
this.scene = new THREE.Scene();
if (params.createCameraControls) {
this.controls = new THREE.OrbitControls(this.camera, this.renderer.domElement);
}
this.resize = this.resize.bind(this);
this.tick = this.tick.bind(this);
this.resize();
this.tick();
window.addEventListener('resize', this.resize, false);
}
THREERoot.prototype = {
tick: function () {
this.update();
this.render();
requestAnimationFrame(this.tick);
},
update: function () {
this.controls && this.controls.update();
},
render: function () {
this.renderer.render(this.scene, this.camera);
},
resize: function () {
this.camera.aspect = window.innerWidth / window.innerHeight;
this.camera.updateProjectionMatrix();
this.renderer.setSize(window.innerWidth, window.innerHeight);
}
};
////////////////////
// UTILS
////////////////////
var utils = {
extend: function (dst, src) {
for (var key in src) {
dst[key] = src[key];
}
return dst;
},
randSign: function () {
return Math.random() > 0.5 ? 1 : -1;
},
ease: function (ease, t, b, c, d) {
return b + ease.getRatio(t / d) * c;
},
fibSpherePoint: (function () {
var vec = {x: 0, y: 0, z: 0};
var G = Math.PI * (3 - Math.sqrt(5));
return function (i, n, radius) {
var step = 2.0 / n;
var r, phi;
vec.y = i * step - 1 + (step * 0.5);
r = Math.sqrt(1 - vec.y * vec.y);
phi = i * G;
vec.x = Math.cos(phi) * r;
vec.z = Math.sin(phi) * r;
radius = radius || 1;
vec.x *= radius;
vec.y *= radius;
vec.z *= radius;
return vec;
}
})(),
spherePoint: (function () {
return function (u, v) {
u === undefined && (u = Math.random());
v === undefined && (v = Math.random());
var theta = 2 * Math.PI * u;
var phi = Math.acos(2 * v - 1);
var vec = {};
vec.x = (Math.sin(phi) * Math.cos(theta));
vec.y = (Math.sin(phi) * Math.sin(theta));
vec.z = (Math.cos(phi));
return vec;
}
})()
};
function createTweenScrubber(tween, seekSpeed) {
seekSpeed = seekSpeed || 0.001;
function stop() {
TweenMax.to(tween, 1, {timeScale:0});
}
function resume() {
TweenMax.to(tween, 1, {timeScale:1});
}
function seek(dx) {
var progress = tween.progress();
var p = THREE.Math.clamp((progress + (dx * seekSpeed)), 0, 1);
tween.progress(p);
}
var _cx = 0;
// desktop
var mouseDown = false;
document.body.style.cursor = 'pointer';
window.addEventListener('mousedown', function(e) {
mouseDown = true;
document.body.style.cursor = 'ew-resize';
_cx = e.clientX;
stop();
});
window.addEventListener('mouseup', function(e) {
mouseDown = false;
document.body.style.cursor = 'pointer';
resume();
});
window.addEventListener('mousemove', function(e) {
if (mouseDown === true) {
var cx = e.clientX;
var dx = cx - _cx;
_cx = cx;
seek(dx);
}
});
// mobile
window.addEventListener('touchstart', function(e) {
_cx = e.touches[0].clientX;
stop();
e.preventDefault();
});
window.addEventListener('touchend', function(e) {
resume();
e.preventDefault();
});
window.addEventListener('touchmove', function(e) {
var cx = e.touches[0].clientX;
var dx = cx - _cx;
_cx = cx;
seek(dx);
e.preventDefault();
});
}
body {
margin: 0;
background: #fff;
}
canvas {
background: #fff;
}
<div id="three-container1"></div>
<div id="three-container2"></div>

Cannot render a mesh with THREE js

This code should produce a mesh of a torus in three js. I'm pretty sure the maths are correct. However it renders only a piece of torus, or stranger things if I change some parameters. Is there something bad with my practice of THREE.Mesh ?
// the vertices of the mesh and the vertex normals ----------------
var nx = 64;
var ny = 32;
var R = 10; var r = 3;
var Vertices = new Array(nx);
var Normals = new Array(nx);
for (var i = 0; i < nx; i++) {
Vertices[i] = new Array(ny);
Normals[i] = new Array(ny);
var u = i / nx * 2 * Math.PI;
var cos_u = Math.cos(u);
var sin_u = Math.sin(u);
var cx = R * cos_u;
var cy = R * sin_u;
for (var j = 0; j < ny; j++) {
var v = j / ny * 2 * Math.PI;
var rcos_v = r * Math.cos(v);
var rsin_v = r * Math.sin(v);
Vertices[i][j] = new THREE.Vector3(
cx + rcos_v * cos_u,
cy + rcos_v * sin_u,
rsin_v
);
Normals[i][j] = new THREE.Vector3(
rcos_v * cos_u,
rcos_v * sin_u,
rsin_v
);
}
}
// vertices as a dot cloud ----------------------------------------
var dotGeometry = new THREE.Geometry();
for (var i = 0; i < nx; i++) {
for (var j = 0; j < ny; j++) {
dotGeometry.vertices.push(Vertices[i][j]);
}
}
var dotMaterial =
new THREE.PointsMaterial({ size: 1, sizeAttenuation: false });
var cloud = new THREE.Points(dotGeometry, dotMaterial);
// mesh -----------------------------------------------------------
var geom = new THREE.Geometry();
for (var i = 0; i < nx; i++) {
var ip1 = (i == nx - 1 ? 0 : i + 1);
for (var j = 0; j < ny; j++) {
var jp1 = (j == ny - 1 ? 0 : j + 1);
geom.vertices.push(Vertices[i][j]);
geom.vertices.push(Vertices[i][jp1]);
geom.vertices.push(Vertices[ip1][j]);
var vnormals1 =
[Normals[i][j], Normals[i][jp1], Normals[ip1][j]];
geom.faces.push(new THREE.Face3(
i * ny + j,
i * ny + jp1,
ip1 * ny + j,
vnormals1
));
geom.vertices.push(Vertices[i][jp1]);
geom.vertices.push(Vertices[ip1][jp1]);
geom.vertices.push(Vertices[ip1][j]);
var vnormals2 =
[Normals[i][jp1], Normals[ip1][jp1], Normals[ip1][j]];
geom.faces.push(new THREE.Face3(
i * ny + jp1,
ip1 * ny + jp1,
ip1 * ny + j,
vnormals2
));
}
}
var torusMesh = new THREE.Mesh(
geom,
new THREE.MeshNormalMaterial({ wireframe: false }));
// three js scene -------------------------------------------------
var scene = new THREE.Scene();
var aspect = window.innerWidth / window.innerHeight;
var camera = new THREE.PerspectiveCamera(50, aspect, 1, 10000);
camera.position.z = 30;
scene.add(camera);
var renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
var object = new THREE.Object3D();
object.add(torusMesh);
object.add(cloud);
scene.add(object);
renderer.render(scene, camera);
// animation ---------------------------------------------------------
var isDragging = false;
var previousMousePosition = {
x: 0,
y: 0
};
$(renderer.domElement).on('mousedown', function (e) {
isDragging = true;
}).on('mousemove', function (e) {
var deltaMove = {
x: e.offsetX - previousMousePosition.x,
y: e.offsetY - previousMousePosition.y
};
if (isDragging) {
var deltaRotationQuaternion = new THREE.Quaternion()
.setFromEuler(new THREE.Euler(
Math.PI / 180 * (deltaMove.y * 1),
Math.PI / 180 * (deltaMove.x * 1),
0,
'XYZ'
));
object.quaternion.multiplyQuaternions(deltaRotationQuaternion,
object.quaternion);
}
previousMousePosition = {
x: e.offsetX,
y: e.offsetY
};
});
$(document).on('mouseup', function (e) {
isDragging = false;
});
window.requestAnimFrame = (function () {
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
function (callback) {
window.setTimeout(callback, 1000 / 60);
};
})();
function render() {
renderer.render(scene, camera);
requestAnimFrame(render);
}
render();
canvas {
width: 100%;
height: 100%
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/98/three.js"></script>

I think there were two problems with your code:
When using Geometry, you define faces just by adding objects of type Face3 to the faces array. The vertices of the geometry are defined just once. In your case, you can just do this:
geom.vertices = dotGeometry.vertices;
Besides, the winding order of your faces was not correct. You have to switch the first and third index.
// the vertices of the mesh and the vertex normals ----------------
var nx = 64;
var ny = 32;
var R = 10; var r = 3;
var Vertices = new Array(nx);
var Normals = new Array(nx);
for (var i = 0; i < nx; i++) {
Vertices[i] = new Array(ny);
Normals[i] = new Array(ny);
var u = i / nx * 2 * Math.PI;
var cos_u = Math.cos(u);
var sin_u = Math.sin(u);
var cx = R * cos_u;
var cy = R * sin_u;
for (var j = 0; j < ny; j++) {
var v = j / ny * 2 * Math.PI;
var rcos_v = r * Math.cos(v);
var rsin_v = r * Math.sin(v);
Vertices[i][j] = new THREE.Vector3(
cx + rcos_v * cos_u,
cy + rcos_v * sin_u,
rsin_v
);
Normals[i][j] = new THREE.Vector3(
rcos_v * cos_u,
rcos_v * sin_u,
rsin_v
);
}
}
// vertices as a dot cloud ----------------------------------------
var dotGeometry = new THREE.Geometry();
for (var i = 0; i < nx; i++) {
for (var j = 0; j < ny; j++) {
dotGeometry.vertices.push(Vertices[i][j]);
}
}
var dotMaterial =
new THREE.PointsMaterial({ size: 1, sizeAttenuation: false });
var cloud = new THREE.Points(dotGeometry, dotMaterial);
// mesh -----------------------------------------------------------
var geom = new THREE.Geometry();
geom.vertices = dotGeometry.vertices;
for (var i = 0; i < nx; i++) {
var ip1 = (i == nx - 1 ? 0 : i + 1);
for (var j = 0; j < ny; j++) {
var jp1 = (j == ny - 1 ? 0 : j + 1);
var vnormals1 =
[Normals[i][j], Normals[i][jp1], Normals[ip1][j]];
geom.faces.push(new THREE.Face3(
ip1 * ny + j,
i * ny + jp1,
i * ny + j,
vnormals1
));
var vnormals2 =
[Normals[i][jp1], Normals[ip1][jp1], Normals[ip1][j]];
geom.faces.push(new THREE.Face3(
ip1 * ny + j,
ip1 * ny + jp1,
i * ny + jp1,
vnormals2
));
}
}
var torusMesh = new THREE.Mesh(
geom,
new THREE.MeshNormalMaterial({ wireframe: false }));
// three js scene -------------------------------------------------
var scene = new THREE.Scene();
var aspect = window.innerWidth / window.innerHeight;
var camera = new THREE.PerspectiveCamera(50, aspect, 1, 10000);
camera.position.z = 30;
scene.add(camera);
var renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
var object = new THREE.Object3D();
object.add(torusMesh);
object.add(cloud);
scene.add(object);
renderer.render(scene, camera);
// animation ---------------------------------------------------------
var isDragging = false;
var previousMousePosition = {
x: 0,
y: 0
};
$(renderer.domElement).on('mousedown', function (e) {
isDragging = true;
}).on('mousemove', function (e) {
var deltaMove = {
x: e.offsetX - previousMousePosition.x,
y: e.offsetY - previousMousePosition.y
};
if (isDragging) {
var deltaRotationQuaternion = new THREE.Quaternion()
.setFromEuler(new THREE.Euler(
Math.PI / 180 * (deltaMove.y * 1),
Math.PI / 180 * (deltaMove.x * 1),
0,
'XYZ'
));
object.quaternion.multiplyQuaternions(deltaRotationQuaternion,
object.quaternion);
}
previousMousePosition = {
x: e.offsetX,
y: e.offsetY
};
});
$(document).on('mouseup', function (e) {
isDragging = false;
});
window.requestAnimFrame = (function () {
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
function (callback) {
window.setTimeout(callback, 1000 / 60);
};
})();
function render() {
renderer.render(scene, camera);
requestAnimFrame(render);
}
render();
canvas {
width: 100%;
height: 100%
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/98/three.js"></script>
<script
src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity="sha256-3edrmyuQ0w65f8gfBsqowzjJe2iM6n0nKciPUp8y+7E="
crossorigin="anonymous"></script>
Besides, consider to use the approach of TorusBufferGeometry. Moreover, it's much faster to generate a geometry with BufferGeometry than with Geometry.

Canvas Impulse Animation Effect

I'm studying the following canvas animation by Matei Copot.
Can someone explain how the "impulse"/shooting effect works, and how, say I can simplify the code to only have 3 stationary dots a, b, and c (while showing the impulse effect between a-> b and between b -> c)?
var w = c.width = window.innerWidth,
h = c.height = window.innerHeight,
ctx = c.getContext( '2d' ),
opts = {
range: 180,
baseConnections: 3,
addedConnections: 5,
baseSize: 5,
minSize: 1,
dataToConnectionSize: .4,
sizeMultiplier: .7,
allowedDist: 40,
baseDist: 40,
addedDist: 30,
connectionAttempts: 100,
dataToConnections: 1,
baseSpeed: .04,
addedSpeed: .05,
baseGlowSpeed: .4,
addedGlowSpeed: .4,
rotVelX: .003,
rotVelY: .002,
repaintColor: '#111',
connectionColor: 'hsla(200,60%,light%,alp)',
rootColor: 'hsla(0,60%,light%,alp)',
endColor: 'hsla(160,20%,light%,alp)',
dataColor: 'hsla(40,80%,light%,alp)',
wireframeWidth: .1,
wireframeColor: '#88f',
depth: 250,
focalLength: 250,
vanishPoint: {
x: w / 2,
y: h / 2
}
},
squareRange = opts.range * opts.range,
squareAllowed = opts.allowedDist * opts.allowedDist,
mostDistant = opts.depth + opts.range,
sinX = sinY = 0,
cosX = cosY = 0,
connections = [],
toDevelop = [],
data = [],
all = [],
tick = 0,
totalProb = 0,
animating = false,
Tau = Math.PI * 2;
ctx.fillStyle = '#222';
ctx.fillRect( 0, 0, w, h );
ctx.fillStyle = '#ccc';
ctx.font = '50px Verdana';
ctx.fillText( 'Calculating Nodes', w / 2 - ctx.measureText( 'Calculating Nodes' ).width / 2, h / 2 - 15 );
window.setTimeout( init, 4 ); // to render the loading screen
function init(){
connections.length = 0;
data.length = 0;
all.length = 0;
toDevelop.length = 0;
var connection = new Connection( 0, 0, 0, opts.baseSize );
connection.step = Connection.rootStep;
connections.push( connection );
all.push( connection );
connection.link();
while( toDevelop.length > 0 ){
toDevelop[ 0 ].link();
toDevelop.shift();
}
if( !animating ){
animating = true;
anim();
}
}
function Connection( x, y, z, size ){
this.x = x;
this.y = y;
this.z = z;
this.size = size;
this.screen = {};
this.links = [];
this.probabilities = [];
this.isEnd = false;
this.glowSpeed = opts.baseGlowSpeed + opts.addedGlowSpeed * Math.random();
}
Connection.prototype.link = function(){
if( this.size < opts.minSize )
return this.isEnd = true;
var links = [],
connectionsNum = opts.baseConnections + Math.random() * opts.addedConnections |0,
attempt = opts.connectionAttempts,
alpha, beta, len,
cosA, sinA, cosB, sinB,
pos = {},
passedExisting, passedBuffered;
while( links.length < connectionsNum && --attempt > 0 ){
alpha = Math.random() * Math.PI;
beta = Math.random() * Tau;
len = opts.baseDist + opts.addedDist * Math.random();
cosA = Math.cos( alpha );
sinA = Math.sin( alpha );
cosB = Math.cos( beta );
sinB = Math.sin( beta );
pos.x = this.x + len * cosA * sinB;
pos.y = this.y + len * sinA * sinB;
pos.z = this.z + len * cosB;
if( pos.x*pos.x + pos.y*pos.y + pos.z*pos.z < squareRange ){
passedExisting = true;
passedBuffered = true;
for( var i = 0; i < connections.length; ++i )
if( squareDist( pos, connections[ i ] ) < squareAllowed )
passedExisting = false;
if( passedExisting )
for( var i = 0; i < links.length; ++i )
if( squareDist( pos, links[ i ] ) < squareAllowed )
passedBuffered = false;
if( passedExisting && passedBuffered )
links.push( { x: pos.x, y: pos.y, z: pos.z } );
}
}
if( links.length === 0 )
this.isEnd = true;
else {
for( var i = 0; i < links.length; ++i ){
var pos = links[ i ],
connection = new Connection( pos.x, pos.y, pos.z, this.size * opts.sizeMultiplier );
this.links[ i ] = connection;
all.push( connection );
connections.push( connection );
}
for( var i = 0; i < this.links.length; ++i )
toDevelop.push( this.links[ i ] );
}
}
Connection.prototype.step = function(){
this.setScreen();
this.screen.color = ( this.isEnd ? opts.endColor : opts.connectionColor ).replace( 'light', 30 + ( ( tick * this.glowSpeed ) % 30 ) ).replace( 'alp', .2 + ( 1 - this.screen.z / mostDistant ) * .8 );
for( var i = 0; i < this.links.length; ++i ){
ctx.moveTo( this.screen.x, this.screen.y );
ctx.lineTo( this.links[ i ].screen.x, this.links[ i ].screen.y );
}
}
Connection.rootStep = function(){
this.setScreen();
this.screen.color = opts.rootColor.replace( 'light', 30 + ( ( tick * this.glowSpeed ) % 30 ) ).replace( 'alp', ( 1 - this.screen.z / mostDistant ) * .8 );
for( var i = 0; i < this.links.length; ++i ){
ctx.moveTo( this.screen.x, this.screen.y );
ctx.lineTo( this.links[ i ].screen.x, this.links[ i ].screen.y );
}
}
Connection.prototype.draw = function(){
ctx.fillStyle = this.screen.color;
ctx.beginPath();
ctx.arc( this.screen.x, this.screen.y, this.screen.scale * this.size, 0, Tau );
ctx.fill();
}
function Data( connection ){
this.glowSpeed = opts.baseGlowSpeed + opts.addedGlowSpeed * Math.random();
this.speed = opts.baseSpeed + opts.addedSpeed * Math.random();
this.screen = {};
this.setConnection( connection );
}
Data.prototype.reset = function(){
this.setConnection( connections[ 0 ] );
this.ended = 2;
}
Data.prototype.step = function(){
this.proportion += this.speed;
if( this.proportion < 1 ){
this.x = this.ox + this.dx * this.proportion;
this.y = this.oy + this.dy * this.proportion;
this.z = this.oz + this.dz * this.proportion;
this.size = ( this.os + this.ds * this.proportion ) * opts.dataToConnectionSize;
} else
this.setConnection( this.nextConnection );
this.screen.lastX = this.screen.x;
this.screen.lastY = this.screen.y;
this.setScreen();
this.screen.color = opts.dataColor.replace( 'light', 40 + ( ( tick * this.glowSpeed ) % 50 ) ).replace( 'alp', .2 + ( 1 - this.screen.z / mostDistant ) * .6 );
}
Data.prototype.draw = function(){
if( this.ended )
return --this.ended; // not sre why the thing lasts 2 frames, but it does
ctx.beginPath();
ctx.strokeStyle = this.screen.color;
ctx.lineWidth = this.size * this.screen.scale;
ctx.moveTo( this.screen.lastX, this.screen.lastY );
ctx.lineTo( this.screen.x, this.screen.y );
ctx.stroke();
}
Data.prototype.setConnection = function( connection ){
if( connection.isEnd )
this.reset();
else {
this.connection = connection;
this.nextConnection = connection.links[ connection.links.length * Math.random() |0 ];
this.ox = connection.x; // original coordinates
this.oy = connection.y;
this.oz = connection.z;
this.os = connection.size; // base size
this.nx = this.nextConnection.x; // new
this.ny = this.nextConnection.y;
this.nz = this.nextConnection.z;
this.ns = this.nextConnection.size;
this.dx = this.nx - this.ox; // delta
this.dy = this.ny - this.oy;
this.dz = this.nz - this.oz;
this.ds = this.ns - this.os;
this.proportion = 0;
}
}
Connection.prototype.setScreen = Data.prototype.setScreen = function(){
var x = this.x,
y = this.y,
z = this.z;
// apply rotation on X axis
var Y = y;
y = y * cosX - z * sinX;
z = z * cosX + Y * sinX;
// rot on Y
var Z = z;
z = z * cosY - x * sinY;
x = x * cosY + Z * sinY;
this.screen.z = z;
// translate on Z
z += opts.depth;
this.screen.scale = opts.focalLength / z;
this.screen.x = opts.vanishPoint.x + x * this.screen.scale;
this.screen.y = opts.vanishPoint.y + y * this.screen.scale;
}
function squareDist( a, b ){
var x = b.x - a.x,
y = b.y - a.y,
z = b.z - a.z;
return x*x + y*y + z*z;
}
function anim(){
window.requestAnimationFrame( anim );
ctx.globalCompositeOperation = 'source-over';
ctx.fillStyle = opts.repaintColor;
ctx.fillRect( 0, 0, w, h );
++tick;
var rotX = tick * opts.rotVelX,
rotY = tick * opts.rotVelY;
cosX = Math.cos( rotX );
sinX = Math.sin( rotX );
cosY = Math.cos( rotY );
sinY = Math.sin( rotY );
if( data.length < connections.length * opts.dataToConnections ){
var datum = new Data( connections[ 0 ] );
data.push( datum );
all.push( datum );
}
ctx.globalCompositeOperation = 'lighter';
ctx.beginPath();
ctx.lineWidth = opts.wireframeWidth;
ctx.strokeStyle = opts.wireframeColor;
all.map( function( item ){ item.step(); } );
ctx.stroke();
ctx.globalCompositeOperation = 'source-over';
all.sort( function( a, b ){ return b.screen.z - a.screen.z } );
all.map( function( item ){ item.draw(); } );
/*ctx.beginPath();
ctx.strokeStyle = 'red';
ctx.arc( opts.vanishPoint.x, opts.vanishPoint.y, opts.range * opts.focalLength / opts.depth, 0, Tau );
ctx.stroke();*/
}
window.addEventListener( 'resize', function(){
opts.vanishPoint.x = ( w = c.width = window.innerWidth ) / 2;
opts.vanishPoint.y = ( h = c.height = window.innerHeight ) / 2;
ctx.fillRect( 0, 0, w, h );
});
window.addEventListener( 'click', init );
canvas {
position: absolute;
top: 0;
left: 0;
}
<canvas id=c></canvas>
<!--
ALGORITHM:
structure:
- gen( x,y,z ):
- create node at x,y,z // blue
- append some children to list:
- within a certain distance to parent
- outside a certain distance from any node
- within a global distance
- if no children
- don't append any
- set as end node // green-ish
- gen( 0,0,0 ) // red
- while list has items
- gen( position of first item )
- remove first item
impulse behaviour:
- pick( node ):
- if node is end node
- pick( original node )
- else
- pick( random node from node children )
- pick( original node)
-->

threejs coincident vertices texture discontinued

I want to make a animated tube with hemisphere ends, the tubular segments is 200. I have the vertices from the first 60 segments to copy the position of a SphereGeometry's upper half part, and the last 60 segments lower half part.
The segments between the upper and lower hemisphere is all copied to the vertices around the sphere's equatorial.
The geometry looks fine, but the spherical environment mapping texture is discontinued at the sphere's equatorial.
I have my code as below, anyone know how to solve the problem?
var camera, scene, renderer;
init();
animate();
function init() {
camera = new THREE.PerspectiveCamera( 28, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.z = 50;
scene = new THREE.Scene();
var nMat = new THREE.MeshNormalMaterial({side:THREE.DoubleSide,});
var tube = new DSTube( 200, 30, 10, nMat);
scene.add( tube.mesh );
renderer = new THREE.WebGLRenderer();
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function animate() {
requestAnimationFrame( animate );
renderer.render( scene, camera );
}
body {
margin: 0px;
background-color: #000000;
overflow: hidden;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r78/three.js"></script>
<script>
function DSTube( lengthSeg, radiusSeg, radius, material ) {
//for speed
this.framerate = 60;
//center
this.origin = new THREE.Vector3();
this.head = this.origin;
this.tail = this.origin;
//setup
this.lengthSeg = lengthSeg;
this.radiusSeg = radiusSeg;
this.radius = radius;
this.pathPoints = [];
for(var i=0; i<this.lengthSeg; i++) {
this.pathPoints.push( new THREE.Vector3( 0, 0, 0) );
}
// TubeGeometry(path, tubularSegments, radius, radiusSegments, closed)
this.geometry = new THREE.TubeGeometry( new THREE.CatmullRomCurve3(this.pathPoints), this.lengthSeg, this.radius, this.radiusSeg, false );
this.material = material;
this.mesh = new THREE.Mesh( this.geometry, this.material );
this.verticeCount = this.geometry.vertices.length;
//sphere part
//adjust height segment if needed
this.sphereHeightSegments = 60;
//SphereGeometry(radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength)
this.headSphere = new THREE.SphereGeometry( this.radius, this.radiusSeg, this.sphereHeightSegments );
this.tailSphere = new THREE.SphereGeometry( this.radius, this.radiusSeg, this.sphereHeightSegments );
this.sphereVerticeCount = this.headSphere.vertices.length;
//count for tube hemisphere
this.headHemisphereVerticeCount = ( this.sphereHeightSegments / 2 + 1 ) * this.radiusSeg;
//layer
this.tubeLayerCount = this.lengthSeg + 1;
this.headHemisphereLayerCount = this.tailHemisphereLayerCount = this.sphereHeightSegments / 2 + 1;
this.tailHemisphereStartLayer = this.tubeLayerCount - this.sphereHeightSegments / 2;
this.middleLayerCount = this.tubeLayerCount - this.headHemisphereLayerCount * 2;
this.initGeometry();
// return this.mesh;
}
DSTube.prototype.initGeometry = function() {
this.copyHeadSphere();
this.copyInitialTubePart();
this.copyTailSphere();
}
DSTube.prototype.copyHeadSphere = function() {
//copy head hemisphere vertice
for( var y = 0; y < this.headHemisphereLayerCount; y++ ) {
for( var x = 0; x < this.radiusSeg; x++ ) {
if( x == 0 ) {
var sphereVertex = this.headSphere.vertices[ y * (this.radiusSeg + 1) + x ];
this.geometry.vertices[ y * this.radiusSeg + x ].copy( sphereVertex );
} else {
var sphereVertex = this.headSphere.vertices[ y * (this.radiusSeg + 1) + ( this.radiusSeg - x ) ];
this.geometry.vertices[ y * this.radiusSeg + x ].copy( sphereVertex );
}
}
}
this.geometry.computeBoundingSphere();
this.geometry.computeFaceNormals();
this.geometry.computeVertexNormals();
}
DSTube.prototype.copyInitialTubePart = function() {
//copy head hemisphere vertice
for( var y = this.headHemisphereLayerCount - 1; y < this.tubeLayerCount ; y++ ) {
for( var x = 0; x < this.radiusSeg; x++ ) {
var vertex = this.geometry.vertices[ ( this.headHemisphereLayerCount - 1 ) * this.radiusSeg + x ];
this.geometry.vertices[ y * this.radiusSeg + x ].copy( vertex );
}
}
this.geometry.computeBoundingSphere();
this.geometry.computeFaceNormals();
this.geometry.computeVertexNormals();
}
DSTube.prototype.copyTailSphere = function() {
//copy tail hemisphere vertice
for( var y = this.tailHemisphereStartLayer; y < this.tubeLayerCount; y++ ) {
for( var x = 0; x < this.radiusSeg; x++ ) {
if( x == 0 ) {
var sphereVertex = this.tailSphere.vertices[ ( y - this.middleLayerCount - 1 ) * (this.radiusSeg + 1) + x ];
this.geometry.vertices[ y * this.radiusSeg + x ].copy( sphereVertex );
} else {
var sphereVertex = this.tailSphere.vertices[ ( y - this.middleLayerCount - 1 ) * (this.radiusSeg + 1) + ( this.radiusSeg - x ) ];
this.geometry.vertices[ y * this.radiusSeg + x ].copy( sphereVertex );
}
}
}
this.geometry.computeBoundingSphere();
this.geometry.computeFaceNormals();
this.geometry.computeVertexNormals();
}
</script>

cloth simulator using three.js

I am working on three.js to create cloth simulator like hermes' website just difference is I wanted top-down waves instead of horozontal waves that is in hermes.
However I succeed to make vertical waves as I wanted (here is live also added snippet below)
but as you can see top side is not fixed it is also moving slightly I want to make top side Fixed it should not move like hermes website, and want to make this wave continuous instead of just once when webpage loads, also I noticed once wired thing that when I keep open my modified version in browser for 5-10 minutes it shrinks in size (height & width) and gets too smaller after sometime. I don't know why!!
Can any one expert here do some help me for this three things?
make top side fixed like hermes.
Continuous waves.
Get rid of size reducing.
function Particle( x, y, z, mass, drag, clothFunction ) {
this.position = clothFunction( x, y ); // position
this.previous = clothFunction( x, y ); // previous
this.original = clothFunction( x, y );
this.a = new THREE.Vector3( 0, 0, 0 ); // acceleration
this.mass = mass;
this.drag = drag;
this.invMass = 1 / mass;
this.tmp = new THREE.Vector3();
this.tmp2 = new THREE.Vector3();
}
Particle.prototype.addForce = function( force ) {
this.a.add(
this.tmp2.copy( force ).multiplyScalar( this.invMass )
);
};
Particle.prototype.integrate = function( timesq ) {
var newPos = this.tmp.subVectors( this.position, this.previous );
// newPos.multiplyScalar( this.drag ).add( this.position );
newPos.add( this.position );
newPos.add( this.a.multiplyScalar( timesq ) );
this.tmp = this.previous;
this.previous = this.position;
this.position = newPos;
this.a.set( 0, 0, 0 );
};
function Cloth( mass, w, h, restDistance, drag, clothFunction ) {
function index( u, v ) {
return u + v * ( w + 1 );
}
w = w || 10;
h = h || 10;
this.w = w;
this.h = h;
var particles = [];
var constraints = [];
var u, v;
// Create particles
for ( v = 0; v <= h; v ++ ) {
for ( u = 0; u <= w; u ++ ) {
particles.push(
new Particle( u / w, -v / h, 0, mass, drag, clothFunction )
);
}
}
// Structural
for ( v = 0; v < h; v ++ ) {
for ( u = 0; u < w; u ++ ) {
constraints.push( [
particles[ index( u, v ) ],
particles[ index( u, v + 1 ) ],
restDistance
] );
constraints.push( [
particles[ index( u, v ) ],
particles[ index( u + 1, v ) ],
restDistance
] );
}
}
for ( u = w, v = 0; v < h; v ++ ) {
constraints.push( [
particles[ index( u, v ) ],
particles[ index( u, v + 1 ) ],
restDistance
] );
}
for ( v = h, u = 0; u < w; u ++ ) {
constraints.push( [
particles[ index( u, v ) ],
particles[ index( u + 1, v ) ],
restDistance
] );
}
this.particles = particles;
this.constraints = constraints;
this.index = index;
}
function animatedProduct( container, size, canvas, image ) {
this.DAMPING = .02;
this.DRAG = 1 - this.DAMPING
this.MASS = 2000;
this.STIFFNESS = 1;
this.SEGMENTS = 40;
this.canvas = canvas;
this.size = size;
this.demoMode = !0;
this.startTime = Date.now();
this.image = image;
this.restDistance = this.size / this.SEGMENTS;
this.container = container;
this.gravity = new THREE.Vector3( 0, -80, 0 ).multiplyScalar( this.MASS );
this.TIMESTEP_SQ = Math.pow(.01, 2);
this.tmpForce = new THREE.Vector3;
this.diff = new THREE.Vector3;
this.pins = [];
for( var i = 0; i <= this.SEGMENTS; i++ )
this.pins.push( i );
this.degree = 0;
this.wave = 0;
}
animatedProduct.prototype = {
createPlane: function( width, height ) {
return function(c, d) {
var e = ( c - .5 ) * width,
f = ( d + .5 ) * height,
g = 0;
return new THREE.Vector3( e, f, g )
}
},
satisfyConstraints: function( p1, p2, distance ) {
this.diff.subVectors( p2.position, p1.position );
var currentDist = this.diff.length();
if ( currentDist === 0 )
return; // prevents division by 0
this.diff.normalize();
var correction = this.diff.multiplyScalar( currentDist - distance );
var correctionHalf = correction.multiplyScalar( 0.5 );
p1.position.add( correctionHalf );
p2.position.sub( correctionHalf );
},
simulate: function( timestep_sq ) {
var b, c, d, e, f, g, h, i, j = this.clothGeometry.faces;
for (d = this.cloth.particles, b = 0, c = d.length; c > b; b++) {
e = d[b];
e.addForce(this.gravity);
e.integrate(timestep_sq);
}
for (f = this.cloth.constraints, c = f.length, b = 0; c > b; b++) {
g = f[b];
this.satisfyConstraints(g[0], g[1], g[2]);
}
for (d = this.cloth.particles, b = 0, c = d.length; c > b; b++) {
e = d[b];
e.position.x = e.original.x;
}
for (b = 0, c = this.pins.length; c > b; b++) {
var k = this.pins[ b ],
l = d[ k ];
l.position.y = l.original.y;
l.position.x = l.original.x;
l.position.z = l.position.z + this.wave;
}
if( this.degree <= 6 ) {
this.wave = Math.sin( this.degree ) * 6;
this.degree += 0.017 * 42;
}
else
this.wave = 0;
},
init: function() {
this.clothFunction = this.createPlane( this.size, this.size );
this.cloth = new Cloth( this.MASS, this.SEGMENTS, this.SEGMENTS, this.restDistance, this.DRAG, this.createPlane( this.size, this.size ) );
this.scene = new THREE.Scene;
this.camera = new THREE.PerspectiveCamera( 45, this.canvas.width / this.canvas.height, 1, 1e4 );
this.camera.position.y = 0;
this.camera.position.z = 1e3;
this.scene.add( this.camera );
this.light = new THREE.DirectionalLight( 16777215, 1 );
this.light.position.set( 20, -20, 100 );
this.scene.add( this.light );
THREE.ImageUtils.crossOrigin = "";
var texture = THREE.ImageUtils.loadTexture( this.image, {}, function() {
this.canvas.classList.add("play")
}.bind( this ) );
texture.flipY = !1;
texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
texture.anisotropy = 16;
var b = new THREE.MeshPhongMaterial({
ambient: 16777215,
shininess: 20,
map: texture,
side: THREE.DoubleSide
});
this.clothGeometry = new THREE.ParametricGeometry( this.clothFunction, this.cloth.w, this.cloth.h );
this.clothGeometry.dynamic = !0;
this.clothGeometry.computeFaceNormals();
var c = {
texture: {
type: "t",
value: texture
}
},
d = "varying vec2 vUV;void main() {vUV = 0.75 * uv;vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );gl_Position = projectionMatrix * mvPosition;}",
e = "uniform sampler2D texture;varying vec2 vUV;vec4 pack_depth( const in float depth ) {const vec4 bit_shift = vec4( 256.0 * 256.0 * 256.0, 256.0 * 256.0, 256.0, 1.0 );const vec4 bit_mask = vec4( 0.0, 1.0 / 256.0, 1.0 / 256.0, 1.0 / 256.0 );vec4 res = fract( depth * bit_shift );res -= res.xxyz * bit_mask;return res;}void main() {vec4 pixel = texture2D( texture, vUV );if ( pixel.a < 0.5 ) discard;gl_FragData[ 0 ] = pack_depth( gl_FragCoord.z );}";
this.object = new THREE.Mesh( this.clothGeometry, b );
this.object.position.set( 0, 0, 0 );
this.scene.add( this.object );
this.object.customDepthMaterial = new THREE.ShaderMaterial({
uniforms: c,
vertexShader: d,
fragmentShader: e
});
this.renderer = new THREE.WebGLRenderer({
antialias: !0,
canvas: this.canvas
});
this.renderer.setSize( this.canvas.width, this.canvas.height );
this.renderer.setClearColor( 16777215, 1 );
this.renderer.autoClear = !1;
this.renderer.autoClearDepth = !1;
this.container.appendChild( this.renderer.domElement );
this.renderer.gammaInput = !0;
this.renderer.gammaOutput = !0;
this.canvas.addEventListener("mousedown", this.onClick.bind( this ), !1 );
for (var f = 0; 20 > f; f++) this.simulate(this.TIMESTEP_SQ);
this.play();
},
onClick: function(a) {
},
animate: function() {
this.animationFrame = window.requestAnimationFrame(this.animate.bind(this));
this.simulate(this.TIMESTEP_SQ);
this.render();
},
pause: function() {
window.cancelAnimationFrame( this.animationFrame );
},
play: function() {
this.scene ? this.animate() : this.init();
},
render: function() {
for ( var a = this.cloth.particles, b = 0, c = a.length; c > b; b++ )
this.clothGeometry.vertices[ b ].copy( a[ b ].position );
this.clothGeometry.computeFaceNormals();
this.clothGeometry.computeVertexNormals();
this.clothGeometry.normalsNeedUpdate = !0;
this.clothGeometry.verticesNeedUpdate = !0;
this.camera.lookAt( this.scene.position );
this.renderer.clear();
this.renderer.render( this.scene, this.camera );
},
stop: function() {
this.pause();
this.canvas.parentNode.removeChild( this.canvas );
}
};
var size = 700,
container = document.getElementById( "product-container" ),
image = "http://media.hermes.com/media/catalog/product/import/S/S01/S011/item/flat/hd/H001485S-17.jpg",
canvas = document.createElement( "canvas" );
canvas.width = canvas.height = 600 + 20,
canvas.id = "product",
container.appendChild( canvas ),
productAnimation = new animatedProduct( container, size, canvas, image );
productAnimation.play();
<script src="http://maksible.com/cloth/cloth_slower_v2/cloth/three.min.js"></script>
<body>
<div id="product-container"></div>
<script type="text/javascript" src="three.min.js"></script>
<script type="text/javascript" src="logic.js"></script>
</body>

Here is the solution with three.js but with different logic than yours. Hope it might be useful for you.
var size = 500;
var img = 'Image.jpg';
window.onload = function() {
createWGL();
render();
}
// render
//
function render() {
requestAnimationFrame( render );
if(window.mat)
mat.uniforms.time.value = now();
ctx.render( scn, cam );
}
// create renderer
//
function createWGL() {
// check desktop/mobile
window.desk = !(/Android|webOS|iPhone|iPad|BlackBerry|Windows Phone|Opera Mini|IEMobile|Mobile/i.test(navigator.userAgent));
window.ctx = new THREE.WebGLRenderer({antialias:window.desk});
ctx.setClearColor( 0xffffff );
ctx.setPixelRatio( window.devicePixelRatio );
ctx.setSize( size, size );
// camera
window.cam = new THREE.PerspectiveCamera( 90, 1, 1, 30 );
cam.position.z = 25;
// scene
window.scn = new THREE.Scene();
// canvas
window.cvs = createCanvas();
scn.add( cvs );
loadCanvasTexture( img );
// clear viewport
ctx.render( scn, cam );
document.body.appendChild( ctx.domElement );
}
// now
//
function now(){
return performance.now() * 0.001;
}
// load canvas texture
//
function loadCanvasTexture( path ) {
if(window.tex)
window.tex.dispose();
cvs.visible = false;
window.tex = new THREE.TextureLoader().load( path, function(){
cvs.visible = true;
});
window.tex.anisotropy = ctx.getMaxAnisotropy();
window.mat.uniforms.tex.value = window.tex;
}
// create canvas
//
function createCanvas() {
window.mat = new THREE.RawShaderMaterial({
uniforms: {
time: { value: now() },
tex: { value: null }
},
vertexShader: 'precision mediump float;precision mediump int;uniform mat4 modelViewMatrix;'+
'uniform mat4 projectionMatrix;attribute vec2 pos;uniform float time;varying vec2 uv;varying float amb;'+
'float d(float y){return cos(sin(time/2.)+time/2.+y/2.14)*sin(time+y/4.17)*(.5-y/40.)*1.5;}'+
'void main(){vec3 p=vec3( pos.x+sin(time/3.)*(.5-pos.y/40.), pos.y+sin(time)*(.5-pos.y/40.)/2., d(pos.y));amb=(d(pos.y-1.)-d(pos.y+1.))/4.;'+
'uv=vec2(pos.x/40.+.5,pos.y/40.+.5);gl_Position=projectionMatrix*modelViewMatrix*vec4(p,1.);}',
fragmentShader: 'precision mediump float;precision mediump int;uniform sampler2D tex;varying vec2 uv;varying float amb;'+
'void main(){vec4 col=texture2D(tex,uv)+amb;gl_FragColor=vec4(col.xyz,1.);}'
});
var d = 40,d2=~~(d/2),i,j,k,n,fi,v,m,z1=-1,z2;
fi = new Uint16Array( d * d * 6 );
v = new Int8Array( (d+1) * (d+1) * 2 );
for(j=0;j<=d;j++)
for(i=0;i<=d;i++) {
k = i + j*(d+1);
v[k*2] = i - d2;
v[k*2+1] = j - d2;
if(i<d&&j<d) {
n = (i + j*d) * 6;
fi[n] = k;
fi[n+1] = k + 1;
fi[n+2] = k + d + 1;
fi[n+3] = k + d + 1;
fi[n+4] = k + 1;
fi[n+5] = k + d + 2;
}
}
for(i=0,j=-1;i<fi.length;i++)
if(j<fi[i])
j = fi[i];
m = new THREE.Mesh( new THREE.BufferGeometry(), mat );
m.geometry.setIndex( new THREE.BufferAttribute( fi, 1 ));
m.geometry.addAttribute( 'pos', new THREE.BufferAttribute( v, 2 ));
return m;
}
just change your logic code with this and run.
cheers!