2月 | 2016 | soylog

2016年2月8日

Ball3D[] balls;
static final int numBalls = 50;
float fl = 250;
float vpX = 0;
float vpY = 0;
 
void setup() {
  size(960, 540);
  frameRate(30);
  initialize();
}
 
void initialize() {
  smooth();
  vpX = width/2;
  vpY = height/2;
  balls = new Ball3D[numBalls];
  for(int i=0; i<numBalls; i++) {
    balls[i] = new Ball3D(5.0);
    balls[i].xpos = random(200) - 100;
    balls[i].ypos = random(200) - 100;
    balls[i].zpos = random(200) - 100;
    balls[i].setFillColor(color(0));   
  }
}
 
void draw() {
  background(255);
  float angleX = (mouseY - vpY) * 0.001;
  float angleY = (mouseX - vpX) * 0.001;
  for(int i=0; i<numBalls; i++) {
    Ball3D ball = balls[i];
    rotateX(ball, angleX);
    rotateY(ball, angleY);
    doPerspective(ball);
  }
  for(int i = 1; i < numBalls; i++) {
    line(balls[i-1].x, balls[i-1].y, balls[i].x, balls[i].y);
  }
   
  for(int i=0; i<numBalls; i++) {
    balls[i].update();
  }
}
 
void rotateX(Ball3D ball, float angleX) {
  float cosX = cos(angleX);
  float sinX = sin(angleX);
  float y1 = ball.ypos * cosX - ball.zpos * sinX;
  float z1 = ball.zpos * cosX + ball.ypos * sinX;
  ball.ypos = y1;
  ball.zpos = z1;
}
 
void rotateY(Ball3D ball, float angleY) {
  float cosY = cos(angleY);
  float sinY = sin(angleY);
  float x1 = ball.xpos * cosY - ball.zpos * sinY;
  float z1 = ball.zpos * cosY + ball.xpos * sinY;
  ball.xpos = x1;
  ball.zpos = z1;  
}
 
void doPerspective(Ball3D ball) {
  if(ball.zpos > -fl) {
    float scale = fl / (fl + ball.zpos);
    ball.scaleX = ball.scaleY = scale;
    ball.x = vpX + ball.xpos * scale;
    ball.y = vpY + ball.ypos * scale;
    ball.visible = true;
  }else{
    ball.visible = false;
  }
}
 
void sortZ() {
  for(int i=0; i<numBalls - 1; i++) {
    for(int j=numBalls-1; j>i; j--) {
      if(balls[j].zpos > balls[j-1].zpos) {
        Ball3D t = balls[j];
        balls[j] = balls[j-1];
        balls[j-1] = t;
      }
    }
  }
  for(int i=0; i<numBalls; i++) {
     Ball3D ball = balls[i];
     ball.update();
  }
}
 
////////////////////////////////
 
class Ball3D extends Sprite {
  float radius;
  float xpos = 0;
  float ypos = 0;
  float zpos = 0;
  float vx = 0;
  float vy = 0;
  float vz = 0;
  float mass = 1;
   
  Ball3D(float radius){
    super();
    this.radius = radius;
  }
   
  void draw(){
    if(dist(mouseX, mouseY, x, y) < radius) {
      isRollOver = true;
    }else{
      isRollOver = false;
    }
    ellipse(0, 0, radius*2, radius*2);
  }
}
 
////////////////////////////////
 
class Sprite extends Object {
  float x, y;
  float scaleX, scaleY;
  float width, height;
  float rotation;
  boolean visible;
  color strokeColor;
  color fillColor;
  Boolean isStroke;
  Boolean isFill;
  Boolean isRollOver;
  Boolean locked;
  float xoff, yoff;
  
  Sprite() {
    super();
    scaleX = 1.0;
    scaleY = 1.0;
    strokeColor = color(0);
    fillColor = color(0);
    isStroke = false;
    isFill = false;
    isRollOver = false;
    locked = false;
    visible = true;
  }
   
  void update() {
    if(! visible) return;
    pushMatrix();
    if(locked){
      x = mouseX - xoff;
      y = mouseY - yoff;
    }  
    translate(x, y);
    scale(scaleX, scaleY);
    rotate(rotation * PI / 180.0);
    if(isStroke) stroke(strokeColor);
    if(isFill) fill(fillColor);
    draw();
    popMatrix();
  }
   
  void setStrokeColor(color strokeColor) {
    this.strokeColor = strokeColor;
    isStroke = true;
  }
   
  void setFillColor(color fillColor) {
    this.fillColor = fillColor;
    isFill = true;
  }
   
  void startDrag() {
    if(isRollOver){
      locked = true;
      xoff = mouseX - x;
      yoff = mouseY - y;
    }
  }
   
  void stopDrag() {
    locked = false;
  }
   
  void draw() {}
}
 
////////////////////////////////
 
class Point extends Object {
  float x, y;
   
  Point(float x, float y) {
    super();
    this.x = x;
    this.y = y;
  }
}
 
////////////////////////////////
 
class Object {
  Object() {}
}

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Ball3D[] balls;

static final int numBalls = 50;

float fl = 250;

float vpX = 0;

float vpY = 0;

void setup() {

size(960, 540);

frameRate(30);

initialize();

}

void initialize() {

smooth();

vpX = width/2;

vpY = height/2;

balls = new Ball3D[numBalls];

for(int i=0; i<numBalls; i++) {

balls[i] = new Ball3D(5.0);

balls[i].xpos = random(200) - 100;

balls[i].ypos = random(200) - 100;

balls[i].zpos = random(200) - 100;

balls[i].setFillColor(color(0));

}

void draw() {

background(255);

float angleX = (mouseY - vpY) * 0.001;

float angleY = (mouseX - vpX) * 0.001;

for(int i=0; i<numBalls; i++) {

Ball3D ball = balls[i];

rotateX(ball, angleX);

rotateY(ball, angleY);

doPerspective(ball);

}

for(int i = 1; i < numBalls; i++) {

line(balls[i-1].x, balls[i-1].y, balls[i].x, balls[i].y);

}

for(int i=0; i<numBalls; i++) {

balls[i].update();

}

void rotateX(Ball3D ball, float angleX) {

float cosX = cos(angleX);

float sinX = sin(angleX);

float y1 = ball.ypos * cosX - ball.zpos * sinX;

float z1 = ball.zpos * cosX + ball.ypos * sinX;

ball.ypos = y1;

ball.zpos = z1;

}

void rotateY(Ball3D ball, float angleY) {

float cosY = cos(angleY);

float sinY = sin(angleY);

float x1 = ball.xpos * cosY - ball.zpos * sinY;

float z1 = ball.zpos * cosY + ball.xpos * sinY;

ball.xpos = x1;

ball.zpos = z1;

}

void doPerspective(Ball3D ball) {

if(ball.zpos > -fl) {

float scale = fl / (fl + ball.zpos);

ball.scaleX = ball.scaleY = scale;

ball.x = vpX + ball.xpos * scale;

ball.y = vpY + ball.ypos * scale;

ball.visible = true;

}else{

ball.visible = false;

}

void sortZ() {

for(int i=0; i<numBalls - 1; i++) {

for(int j=numBalls-1; j>i; j--) {

if(balls[j].zpos > balls[j-1].zpos) {

Ball3D t = balls[j];

balls[j] = balls[j-1];

balls[j-1] = t;

}

for(int i=0; i<numBalls; i++) {

Ball3D ball = balls[i];

ball.update();

}

////////////////////////////////

class Ball3D extends Sprite {

float radius;

float xpos = 0;

float ypos = 0;

float zpos = 0;

float vx = 0;

float vy = 0;

float vz = 0;

float mass = 1;

Ball3D(float radius){

super();

this.radius = radius;

}

void draw(){

if(dist(mouseX, mouseY, x, y) < radius) {

isRollOver = true;

}else{

isRollOver = false;

}

ellipse(0, 0, radius*2, radius*2);

}

////////////////////////////////

class Sprite extends Object {

float x, y;

float scaleX, scaleY;

float width, height;

float rotation;

boolean visible;

color strokeColor;

color fillColor;

Boolean isStroke;

Boolean isFill;

Boolean isRollOver;

Boolean locked;

float xoff, yoff;

Sprite() {

super();

scaleX = 1.0;

scaleY = 1.0;

strokeColor = color(0);

fillColor = color(0);

isStroke = false;

isFill = false;

isRollOver = false;

locked = false;

visible = true;

}

void update() {

if(! visible) return;

pushMatrix();

if(locked){

x = mouseX - xoff;

y = mouseY - yoff;

}

translate(x, y);

scale(scaleX, scaleY);

rotate(rotation * PI / 180.0);

if(isStroke) stroke(strokeColor);

if(isFill) fill(fillColor);

draw();

popMatrix();

}

void setStrokeColor(color strokeColor) {

this.strokeColor = strokeColor;

isStroke = true;

}

void setFillColor(color fillColor) {

this.fillColor = fillColor;

isFill = true;

}

void startDrag() {

if(isRollOver){

locked = true;

xoff = mouseX - x;

yoff = mouseY - y;

}

void stopDrag() {

locked = false;

}

void draw() {}

}

////////////////////////////////

class Point extends Object {

float x, y;

Point(float x, float y) {

super();

this.x = x;

this.y = y;

}

////////////////////////////////

class Object {

Object() {}

}

2016年2月8日

soy 未分類 0 Comments

Point3D points[];
static final int numPoints = 4;
float fl = 250;
float vpX = 0;
float vpY = 0;
 
void setup() {
  size(960, 700);
  frameRate(30);
  initialize();
}
 
void initialize() {
  smooth();
  noStroke();
  vpX = width/2;
  vpY = height/2;
   
  points = new Point3D[numPoints];
  points[0] = new Point3D(-100, -100,  100);
  points[1] = new Point3D( 100, -100,  100);
  points[2] = new Point3D( 100,  100,  100);
  points[3] = new Point3D(-100,  100,  100);
  for(int i=0; i<numPoints; i++) {
    points[i].setVanishingPoint(vpX, vpY);
  }
}
 
void draw() {
  background(255);
   
  float angleX = (mouseY - vpY) * 0.001;
  float angleY = (mouseX - vpX) * 0.001;
  for(int i=0; i<points.length; i++) {
    Point3D point = points[i];
    point.rotateX(angleX);
    point.rotateY(angleY);
  }
  stroke(0);
  for(int i = 1; i < numPoints; i++) {
    line(points[i-1].screenX(), points[i-1].screenY(), points[i].screenX(), points[i].screenY());
  }
  line(points[numPoints - 1].screenX(), points[numPoints - 1].screenY(), points[0].screenX(), points[0].screenY());
}
 
////////////////////////////////
 
class Triangle extends Sprite {
  Point3D pointA;
  Point3D pointB;
  Point3D pointC;
  color cl;
   
  Triangle(Point3D a, Point3D b, Point3D c, color cl){
    super();
    pointA = a;
    pointB = b;
    pointC = c;
    this.cl = cl;
  }
   
  void draw(){
    fill(cl);
    beginShape(TRIANGLE_STRIP);
    vertex(pointA.screenX(), pointA.screenY());
    vertex(pointB.screenX(), pointB.screenY());
    vertex(pointC.screenX(), pointC.screenY());
    vertex(pointA.screenX(), pointA.screenY());
    endShape();
  }
}
 
////////////////////////////////
 
class Sprite extends Object {
  float x, y;
  float scaleX, scaleY;
  float width, height;
  float rotation;
  boolean visible;
  color strokeColor;
  color fillColor;
  Boolean isStroke;
  Boolean isFill;
  Boolean isRollOver;
  Boolean locked;
  float xoff, yoff;
  
  Sprite() {
    super();
    scaleX = 1.0;
    scaleY = 1.0;
    strokeColor = color(0);
    fillColor = color(0);
    isStroke = false;
    isFill = false;
    isRollOver = false;
    locked = false;
    visible = true;
  }
   
  void update() {
    if(! visible) return;
    pushMatrix();
    if(locked){
      x = mouseX - xoff;
      y = mouseY - yoff;
    }  
    translate(x, y);
    scale(scaleX, scaleY);
    rotate(rotation * PI / 180.0);
    if(isStroke) stroke(strokeColor);
    if(isFill) fill(fillColor);
    draw();
    popMatrix();
  }
   
  void setStrokeColor(color strokeColor) {
    this.strokeColor = strokeColor;
    isStroke = true;
  }
   
  void setFillColor(color fillColor) {
    this.fillColor = fillColor;
    isFill = true;
  }
   
  void startDrag() {
    if(isRollOver){
      locked = true;
      xoff = mouseX - x;
      yoff = mouseY - y;
    }
  }
   
  void stopDrag() {
    locked = false;
  }
   
  void draw() {}
}
 
////////////////////////////////
 
class Point3D extends Object {
  float fl = 250;
  float vpX = 0;
  float vpY = 0;
  float cX = 0;
  float cY = 0;
  float cZ = 0;
  float x = 0;
  float y = 0;
  float z = 0;
   
  Point3D(float x, float y, float z) {
    super();
    this.x = x;
    this.y = y;
    this.z = z;
  }
   
  void setVanishingPoint(float vpX, float vpY) {
    this.vpX = vpX;
    this.vpY = vpY;
  }
   
  void setCenter(float cX, float cY, float cZ) {
    this.cX = cX;
    this.cY = cY;
    this.cZ = cZ;    
  }
   
  float screenX() {
    float scale = fl / (fl + z + cZ);
    return vpX + (cX + x) * scale;  
  }
   
  float screenY() {
    float scale = fl / (fl + z + cZ);
    return vpY + (cY + y) * scale;
  }
   
  void rotateX(float angleX) {
    float cosX = cos(angleX);
    float sinX = sin(angleX);
    float y1 = y * cosX - z * sinX;
    float z1 = z * cosX + y * sinX;
    y = y1;
    z = z1;
  }
   
  void rotateY(float angleY) {
    float cosY = cos(angleY);
    float sinY = sin(angleY);
    float x1 = x * cosY - z * sinY;
    float z1 = z * cosY + x * sinY;
    x = x1;
    z = z1;
  }
   
  void rotateZ(float angleZ) {
    float cosZ = cos(angleZ);
    float sinZ = sin(angleZ);
    float x1 = x * cosZ - y * sinZ;
    float y1 = y * cosZ + x * sinZ;
    x = x1;
    y = y1;
  }
}
 
////////////////////////////////
 
class Point extends Object {
  float x, y;
   
  Point(float x, float y) {
    super();
    this.x = x;
    this.y = y;
  }
}
 
////////////////////////////////
 
class Object {
  Object() {}
}

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Point3D points[];

static final int numPoints = 4;

float fl = 250;

float vpX = 0;

float vpY = 0;

void setup() {

size(960, 700);

frameRate(30);

initialize();

}

void initialize() {

smooth();

noStroke();

vpX = width/2;

vpY = height/2;

points = new Point3D[numPoints];

points[0] = new Point3D(-100, -100, 100);

points[1] = new Point3D( 100, -100, 100);

points[2] = new Point3D( 100, 100, 100);

points[3] = new Point3D(-100, 100, 100);

for(int i=0; i<numPoints; i++) {

points[i].setVanishingPoint(vpX, vpY);

}

void draw() {

background(255);

float angleX = (mouseY - vpY) * 0.001;

float angleY = (mouseX - vpX) * 0.001;

for(int i=0; i<points.length; i++) {

Point3D point = points[i];

point.rotateX(angleX);

point.rotateY(angleY);

}

stroke(0);

for(int i = 1; i < numPoints; i++) {

line(points[i-1].screenX(), points[i-1].screenY(), points[i].screenX(), points[i].screenY());

}

line(points[numPoints - 1].screenX(), points[numPoints - 1].screenY(), points[0].screenX(), points[0].screenY());

}

////////////////////////////////

class Triangle extends Sprite {

Point3D pointA;

Point3D pointB;

Point3D pointC;

color cl;

Triangle(Point3D a, Point3D b, Point3D c, color cl){

super();

pointA = a;

pointB = b;

pointC = c;

this.cl = cl;

}

void draw(){

fill(cl);

beginShape(TRIANGLE_STRIP);

vertex(pointA.screenX(), pointA.screenY());

vertex(pointB.screenX(), pointB.screenY());

vertex(pointC.screenX(), pointC.screenY());

vertex(pointA.screenX(), pointA.screenY());

endShape();

}

////////////////////////////////

class Sprite extends Object {

float x, y;

float scaleX, scaleY;

float width, height;

float rotation;

boolean visible;

color strokeColor;

color fillColor;

Boolean isStroke;

Boolean isFill;

Boolean isRollOver;

Boolean locked;

float xoff, yoff;

Sprite() {

super();

scaleX = 1.0;

scaleY = 1.0;

strokeColor = color(0);

fillColor = color(0);

isStroke = false;

isFill = false;

isRollOver = false;

locked = false;

visible = true;

}

void update() {

if(! visible) return;

pushMatrix();

if(locked){

x = mouseX - xoff;

y = mouseY - yoff;

}

translate(x, y);

scale(scaleX, scaleY);

rotate(rotation * PI / 180.0);

if(isStroke) stroke(strokeColor);

if(isFill) fill(fillColor);

draw();

popMatrix();

}

void setStrokeColor(color strokeColor) {

this.strokeColor = strokeColor;

isStroke = true;

}

void setFillColor(color fillColor) {

this.fillColor = fillColor;

isFill = true;

}

void startDrag() {

if(isRollOver){

locked = true;

xoff = mouseX - x;

yoff = mouseY - y;

}

void stopDrag() {

locked = false;

}

void draw() {}

}

////////////////////////////////

class Point3D extends Object {

float fl = 250;

float vpX = 0;

float vpY = 0;

float cX = 0;

float cY = 0;

float cZ = 0;

float x = 0;

float y = 0;

float z = 0;

Point3D(float x, float y, float z) {

super();

this.x = x;

this.y = y;

this.z = z;

}

void setVanishingPoint(float vpX, float vpY) {

this.vpX = vpX;

this.vpY = vpY;

}

void setCenter(float cX, float cY, float cZ) {

this.cX = cX;

this.cY = cY;

this.cZ = cZ;

}

float screenX() {

float scale = fl / (fl + z + cZ);

return vpX + (cX + x) * scale;

}

float screenY() {

float scale = fl / (fl + z + cZ);

return vpY + (cY + y) * scale;

}

void rotateX(float angleX) {

float cosX = cos(angleX);

float sinX = sin(angleX);

float y1 = y * cosX - z * sinX;

float z1 = z * cosX + y * sinX;

y = y1;

z = z1;

}

void rotateY(float angleY) {

float cosY = cos(angleY);

float sinY = sin(angleY);

float x1 = x * cosY - z * sinY;

float z1 = z * cosY + x * sinY;

x = x1;

z = z1;

}

void rotateZ(float angleZ) {

float cosZ = cos(angleZ);

float sinZ = sin(angleZ);

float x1 = x * cosZ - y * sinZ;

float y1 = y * cosZ + x * sinZ;

x = x1;

y = y1;

}

////////////////////////////////

class Point extends Object {

float x, y;

Point(float x, float y) {

super();

this.x = x;

this.y = y;

}

////////////////////////////////

class Object {

Object() {}

}

2016年2月8日

soy 未分類 0 Comments

			var group;
			var container, controls, stats;
			var particlesData = [];
			var camera, scene, renderer;
			var positions, colors;
			var particles;
			var pointCloud;
			var particlePositions;
			var linesMesh;

			var maxParticleCount = 1000;
			var particleCount = 500;
			var r = 800;
			var rHalf = r / 2;

			var effectController = {
				showDots: true,
				showLines: true,
				minDistance: 150,
				limitConnections: false,
				maxConnections: 20,
				particleCount: 500
			};

			init();
			animate();

			function initGUI() {

				var gui = new dat.GUI();

				gui.add( effectController, "showDots" ).onChange( function( value ) { pointCloud.visible = value; } );
				gui.add( effectController, "showLines" ).onChange( function( value ) { linesMesh.visible = value; } );
				gui.add( effectController, "minDistance", 10, 300 );
				gui.add( effectController, "limitConnections" );
				gui.add( effectController, "maxConnections", 0, 30, 1 );
				gui.add( effectController, "particleCount", 0, maxParticleCount, 1 ).onChange( function( value ) {

					particleCount = parseInt( value );
					particles.setDrawRange( 0, particleCount );

				});

			}

			function init() {

				initGUI();

				container = document.getElementById( 'container' );

				//

				camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 4000 );
				camera.position.z = 1750;

				controls = new THREE.OrbitControls( camera, container );

				scene = new THREE.Scene();


				group = new THREE.Group();
				scene.add( group );

				var helper = new THREE.BoxHelper( new THREE.Mesh( new THREE.BoxGeometry( r, r, r ) ) );
				helper.material.color.setHex( 0x080808 );
				helper.material.blending = THREE.AdditiveBlending;
				helper.material.transparent = true;
				group.add( helper );

				var segments = maxParticleCount * maxParticleCount;

				positions = new Float32Array( segments * 3 );
				colors = new Float32Array( segments * 3 );

				var pMaterial = new THREE.PointsMaterial( {
					color: 0xFFFFFF,
					size: 3,
					blending: THREE.AdditiveBlending,
					transparent: true,
					sizeAttenuation: false
				} );

				particles = new THREE.BufferGeometry();
				particlePositions = new Float32Array( maxParticleCount * 3 );

				for ( var i = 0; i < maxParticleCount; i++ ) {

					var x = Math.random() * r - r / 2;
					var y = Math.random() * r - r / 2;
					var z = Math.random() * r - r / 2;

					particlePositions[ i * 3     ] = x;
					particlePositions[ i * 3 + 1 ] = y;
					particlePositions[ i * 3 + 2 ] = z;

					// add it to the geometry
					particlesData.push( {
						velocity: new THREE.Vector3( -1 + Math.random() * 2, -1 + Math.random() * 2,  -1 + Math.random() * 2 ),
						numConnections: 0
					} );

				}

				particles.setDrawRange( 0, particleCount );
				particles.addAttribute( 'position', new THREE.BufferAttribute( particlePositions, 3 ).setDynamic( true ) );

				// create the particle system
				pointCloud = new THREE.Points( particles, pMaterial );
				group.add( pointCloud );

				var geometry = new THREE.BufferGeometry();

				geometry.addAttribute( 'position', new THREE.BufferAttribute( positions, 3 ).setDynamic( true ) );
				geometry.addAttribute( 'color', new THREE.BufferAttribute( colors, 3 ).setDynamic( true ) );

				geometry.computeBoundingSphere();

				geometry.setDrawRange( 0, 0 );

				var material = new THREE.LineBasicMaterial( {
					vertexColors: THREE.VertexColors,
					blending: THREE.AdditiveBlending,
					transparent: true
				} );

				linesMesh = new THREE.LineSegments( geometry, material );
				group.add( linesMesh );

				//

				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );

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

				container.appendChild( renderer.domElement );

				//

				stats = new Stats();
				stats.domElement.style.position = 'absolute';
				stats.domElement.style.top = '0px';
				container.appendChild( stats.domElement );

				window.addEventListener( 'resize', onWindowResize, false );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			function animate() {

				var vertexpos = 0;
				var colorpos = 0;
				var numConnected = 0;

				for ( var i = 0; i < particleCount; i++ )
					particlesData[ i ].numConnections = 0;

				for ( var i = 0; i < particleCount; i++ ) {

					// get the particle
					var particleData = particlesData[i];

					particlePositions[ i * 3     ] += particleData.velocity.x;
					particlePositions[ i * 3 + 1 ] += particleData.velocity.y;
					particlePositions[ i * 3 + 2 ] += particleData.velocity.z;

					if ( particlePositions[ i * 3 + 1 ] < -rHalf || particlePositions[ i * 3 + 1 ] > rHalf )
						particleData.velocity.y = -particleData.velocity.y;

					if ( particlePositions[ i * 3 ] < -rHalf || particlePositions[ i * 3 ] > rHalf )
						particleData.velocity.x = -particleData.velocity.x;

					if ( particlePositions[ i * 3 + 2 ] < -rHalf || particlePositions[ i * 3 + 2 ] > rHalf )
						particleData.velocity.z = -particleData.velocity.z;

					if ( effectController.limitConnections && particleData.numConnections >= effectController.maxConnections )
						continue;

					// Check collision
					for ( var j = i + 1; j < particleCount; j++ ) {

						var particleDataB = particlesData[ j ];
						if ( effectController.limitConnections && particleDataB.numConnections >= effectController.maxConnections )
							continue;

						var dx = particlePositions[ i * 3     ] - particlePositions[ j * 3     ];
						var dy = particlePositions[ i * 3 + 1 ] - particlePositions[ j * 3 + 1 ];
						var dz = particlePositions[ i * 3 + 2 ] - particlePositions[ j * 3 + 2 ];
						var dist = Math.sqrt( dx * dx + dy * dy + dz * dz );

						if ( dist < effectController.minDistance ) {

							particleData.numConnections++;
							particleDataB.numConnections++;

							var alpha = 1.0 - dist / effectController.minDistance;

							positions[ vertexpos++ ] = particlePositions[ i * 3     ];
							positions[ vertexpos++ ] = particlePositions[ i * 3 + 1 ];
							positions[ vertexpos++ ] = particlePositions[ i * 3 + 2 ];

							positions[ vertexpos++ ] = particlePositions[ j * 3     ];
							positions[ vertexpos++ ] = particlePositions[ j * 3 + 1 ];
							positions[ vertexpos++ ] = particlePositions[ j * 3 + 2 ];

							colors[ colorpos++ ] = alpha;
							colors[ colorpos++ ] = alpha;
							colors[ colorpos++ ] = alpha;

							colors[ colorpos++ ] = alpha;
							colors[ colorpos++ ] = alpha;
							colors[ colorpos++ ] = alpha;

							numConnected++;
						}
					}
				}


				linesMesh.geometry.setDrawRange( 0, numConnected * 2 );
				linesMesh.geometry.attributes.position.needsUpdate = true;
				linesMesh.geometry.attributes.color.needsUpdate = true;

				pointCloud.geometry.attributes.position.needsUpdate = true;

				requestAnimationFrame( animate );

				stats.update();
				render();

			}

			function render() {

				var time = Date.now() * 0.001;

				group.rotation.y = time * 0.1;
				renderer.render( scene, camera );

			}

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var group;

var container, controls, stats;

var particlesData = [];

var camera, scene, renderer;

var positions, colors;

var particles;

var pointCloud;

var particlePositions;

var linesMesh;

var maxParticleCount = 1000;

var particleCount = 500;

var r = 800;

var rHalf = r / 2;

var effectController = {

showDots: true,

showLines: true,

minDistance: 150,

limitConnections: false,

maxConnections: 20,

particleCount: 500

};

init();

animate();

function initGUI() {

var gui = new dat.GUI();

gui.add( effectController, "showDots" ).onChange( function( value ) { pointCloud.visible = value; } );

gui.add( effectController, "showLines" ).onChange( function( value ) { linesMesh.visible = value; } );

gui.add( effectController, "minDistance", 10, 300 );

gui.add( effectController, "limitConnections" );

gui.add( effectController, "maxConnections", 0, 30, 1 );

gui.add( effectController, "particleCount", 0, maxParticleCount, 1 ).onChange( function( value ) {

particleCount = parseInt( value );

particles.setDrawRange( 0, particleCount );

});

}

function init() {

initGUI();

container = document.getElementById( 'container' );

camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 4000 );

camera.position.z = 1750;

controls = new THREE.OrbitControls( camera, container );

scene = new THREE.Scene();

group = new THREE.Group();

scene.add( group );

var helper = new THREE.BoxHelper( new THREE.Mesh( new THREE.BoxGeometry( r, r, r ) ) );

helper.material.color.setHex( 0x080808 );

helper.material.blending = THREE.AdditiveBlending;

helper.material.transparent = true;

group.add( helper );

var segments = maxParticleCount * maxParticleCount;

positions = new Float32Array( segments * 3 );

colors = new Float32Array( segments * 3 );

var pMaterial = new THREE.PointsMaterial( {

color: 0xFFFFFF,

size: 3,

blending: THREE.AdditiveBlending,

transparent: true,

sizeAttenuation: false

} );

particles = new THREE.BufferGeometry();

particlePositions = new Float32Array( maxParticleCount * 3 );

for ( var i = 0; i < maxParticleCount; i++ ) {

var x = Math.random() * r - r / 2;

var y = Math.random() * r - r / 2;

var z = Math.random() * r - r / 2;

particlePositions[ i * 3 ] = x;

particlePositions[ i * 3 + 1 ] = y;

particlePositions[ i * 3 + 2 ] = z;

// add it to the geometry

particlesData.push( {

velocity: new THREE.Vector3( -1 + Math.random() * 2, -1 + Math.random() * 2, -1 + Math.random() * 2 ),

numConnections: 0

} );

}

particles.setDrawRange( 0, particleCount );

particles.addAttribute( 'position', new THREE.BufferAttribute( particlePositions, 3 ).setDynamic( true ) );

// create the particle system

pointCloud = new THREE.Points( particles, pMaterial );

group.add( pointCloud );

var geometry = new THREE.BufferGeometry();

geometry.addAttribute( 'position', new THREE.BufferAttribute( positions, 3 ).setDynamic( true ) );

geometry.addAttribute( 'color', new THREE.BufferAttribute( colors, 3 ).setDynamic( true ) );

geometry.computeBoundingSphere();

geometry.setDrawRange( 0, 0 );

var material = new THREE.LineBasicMaterial( {

vertexColors: THREE.VertexColors,

blending: THREE.AdditiveBlending,

transparent: true

} );

linesMesh = new THREE.LineSegments( geometry, material );

group.add( linesMesh );

renderer = new THREE.WebGLRenderer( { antialias: true } );

renderer.setPixelRatio( window.devicePixelRatio );

renderer.setSize( window.innerWidth, window.innerHeight );

renderer.gammaInput = true;

renderer.gammaOutput = true;

container.appendChild( renderer.domElement );

stats = new Stats();

stats.domElement.style.position = 'absolute';

stats.domElement.style.top = '0px';

container.appendChild( stats.domElement );

window.addEventListener( 'resize', onWindowResize, false );

}

function onWindowResize() {

camera.aspect = window.innerWidth / window.innerHeight;

camera.updateProjectionMatrix();

renderer.setSize( window.innerWidth, window.innerHeight );

}

function animate() {

var vertexpos = 0;

var colorpos = 0;

var numConnected = 0;

for ( var i = 0; i < particleCount; i++ )

particlesData[ i ].numConnections = 0;

for ( var i = 0; i < particleCount; i++ ) {

// get the particle

var particleData = particlesData[i];

particlePositions[ i * 3 ] += particleData.velocity.x;

particlePositions[ i * 3 + 1 ] += particleData.velocity.y;

particlePositions[ i * 3 + 2 ] += particleData.velocity.z;

if ( particlePositions[ i * 3 + 1 ] < -rHalf || particlePositions[ i * 3 + 1 ] > rHalf )

particleData.velocity.y = -particleData.velocity.y;

if ( particlePositions[ i * 3 ] < -rHalf || particlePositions[ i * 3 ] > rHalf )

particleData.velocity.x = -particleData.velocity.x;

if ( particlePositions[ i * 3 + 2 ] < -rHalf || particlePositions[ i * 3 + 2 ] > rHalf )

particleData.velocity.z = -particleData.velocity.z;

if ( effectController.limitConnections && particleData.numConnections >= effectController.maxConnections )

continue;

// Check collision

for ( var j = i + 1; j < particleCount; j++ ) {

var particleDataB = particlesData[ j ];

if ( effectController.limitConnections && particleDataB.numConnections >= effectController.maxConnections )

continue;

var dx = particlePositions[ i * 3 ] - particlePositions[ j * 3 ];

var dy = particlePositions[ i * 3 + 1 ] - particlePositions[ j * 3 + 1 ];

var dz = particlePositions[ i * 3 + 2 ] - particlePositions[ j * 3 + 2 ];

var dist = Math.sqrt( dx * dx + dy * dy + dz * dz );

if ( dist < effectController.minDistance ) {

particleData.numConnections++;

particleDataB.numConnections++;

var alpha = 1.0 - dist / effectController.minDistance;

positions[ vertexpos++ ] = particlePositions[ i * 3 ];

positions[ vertexpos++ ] = particlePositions[ i * 3 + 1 ];

positions[ vertexpos++ ] = particlePositions[ i * 3 + 2 ];

positions[ vertexpos++ ] = particlePositions[ j * 3 ];

positions[ vertexpos++ ] = particlePositions[ j * 3 + 1 ];

positions[ vertexpos++ ] = particlePositions[ j * 3 + 2 ];

colors[ colorpos++ ] = alpha;

numConnected++;

}

linesMesh.geometry.setDrawRange( 0, numConnected * 2 );

linesMesh.geometry.attributes.position.needsUpdate = true;

linesMesh.geometry.attributes.color.needsUpdate = true;

pointCloud.geometry.attributes.position.needsUpdate = true;

requestAnimationFrame( animate );

stats.update();

render();

}

function render() {

var time = Date.now() * 0.001;

group.rotation.y = time * 0.1;

renderer.render( scene, camera );

}