Another warm winter scene to help me experiment with lighting & shadows. As @davidkpiano pointed out, if you leave this open long enough, your laptop will get warmer too. I'm calling that a feature
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December 10, 2016 03:33
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Campfire (#3December - Day 9)
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console.clear(); | |
var scene, camera, renderer, orbit, light; | |
scene = new THREE.Scene(); | |
scene.fog = new THREE.Fog(0x242426, 20, 400); | |
camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 10, 400 ); | |
camera.position.z = 100; | |
camera.position.y = 50; | |
camera.position.x = 30; | |
camera.updateProjectionMatrix(); | |
renderer = new THREE.WebGLRenderer( { antialias: true } ); | |
renderer.setPixelRatio( window.devicePixelRatio ); | |
renderer.setSize( window.innerWidth, window.innerHeight ); | |
renderer.setClearColor( 0x242426 ); | |
renderer.toneMapping = THREE.LinearToneMapping; | |
renderer.shadowMap.enabled = true; | |
renderer.shadowMap.type = THREE.PCFSoftShadowMap; | |
window.addEventListener( 'resize', function () { | |
camera.aspect = window.innerWidth / window.innerHeight; | |
camera.updateProjectionMatrix(); | |
renderer.setSize( window.innerWidth, window.innerHeight ); | |
}, false ); | |
document.body.appendChild( renderer.domElement ); | |
/*////////////////////////////////////////*/ | |
orbit = new THREE.OrbitControls( camera, renderer.domElement ); | |
orbit.enableZoom = true; | |
orbit.enablePan = false; | |
orbit.rotateSpeed = 0.3; | |
orbit.zoomSpeed = 0.3; | |
orbit.autoRotate = true; | |
orbit.autoRotateSpeed = 0.6; | |
//orbit.minPolarAngle = Math.PI * 0.3; | |
orbit.maxPolarAngle = Math.PI * 0.45; | |
//orbit.minAzimuthAngle = -Math.PI * 0.2; // radians | |
//orbit.maxAzimuthAngle = Math.PI * 0.2; // radians | |
orbit.minDistance = 40; | |
orbit.maxDistance = 300; | |
orbit.target.set(0,5,0); | |
orbit.update(); | |
function makeSprite(){ | |
let canvas = document.createElement('canvas'), | |
ctx = canvas.getContext('2d'); | |
let spriteSize = 4; | |
canvas.width = canvas.height = spriteSize * 2; | |
ctx.fillStyle = '#FFF'; | |
ctx.beginPath(); | |
ctx.arc( spriteSize, spriteSize, spriteSize, 0, TWOPI, true ); | |
ctx.fill(); | |
let sprite = new THREE.Texture(canvas); | |
sprite.needsUpdate = true; | |
return sprite; | |
} | |
/*////////////////////////////////////////*/ | |
var ambientLight = new THREE.AmbientLight(0x222222); | |
scene.add(ambientLight); | |
let hemiLight = new THREE.HemisphereLight( 0xEBF7FD, 0xEBF7FD, 0.2 ); | |
//hemiLight.color.setRGB(0.75,0.8,0.95); | |
hemiLight.position.set( 0, 100, 0 ); | |
scene.add( hemiLight ); | |
/*////////////////////////////////////////*/ | |
function noiseMap(size,intensity){ | |
var canvas = document.createElement('canvas'), | |
ctx = canvas.getContext('2d'), | |
width = canvas.width = size || 512, | |
height = canvas.height = size || 512; | |
intensity = intensity || 120; | |
var imageData = ctx.getImageData(0, 0, width, height), | |
pixels = imageData.data, | |
n = pixels.length, | |
i = 0; | |
while (i < n) { | |
pixels[i++] = pixels[i++] = pixels[i++] = Math.sin( i * i * i + (i/n) * Math.PI) * intensity; | |
pixels[i++] = 255; | |
} | |
ctx.putImageData(imageData, 0, 0); | |
let sprite = new THREE.Texture(canvas); | |
sprite.needsUpdate = true; | |
return sprite; | |
} | |
let noise = noiseMap(512,60); | |
/*////////////////////////////////////////*/ | |
//var gui = new dat.GUI(); | |
//let l = 0; | |
function makeLight(color){ | |
var light = new THREE.PointLight( color || 0xFFFFFF , 1, 0 ); | |
light.castShadow = true; | |
light.shadow.mapSize.width = 512; | |
light.shadow.mapSize.height = 512; | |
light.shadow.camera.near = 0.1; | |
light.shadow.camera.far = 120; | |
light.shadow.bias = 0.9; | |
light.shadow.radius = 5; | |
light.power = 9; | |
// var sphereSize = 20; | |
// var pointLightHelper = new THREE.PointLightHelper( light, sphereSize ); | |
// light.add( pointLightHelper ); | |
return light; | |
} | |
function Flame(color){ | |
THREE.Group.apply(this,arguments); | |
this.light = makeLight(color); | |
this.light.position.y += 7; | |
this.add( this.light ); | |
let geometry = new THREE.CylinderGeometry( 0, 8, 8, 3 ); //new THREE.BoxGeometry(10,10,10); | |
let material = new THREE.MeshPhongMaterial({ | |
color: color, | |
//specular: 0x009900, | |
shininess: 550, | |
emissive: color, | |
transparent: true, | |
opacity: 0.4, | |
shading: THREE.FlatShading | |
}); | |
let flame = new THREE.Mesh( geometry, material ); | |
this.flame = flame; | |
this.add( flame ); | |
this.scale.y = 2; | |
this.flicker(this.flicker); | |
} | |
Flame.prototype = Object.assign(THREE.Group.prototype, { | |
constructor: Flame, | |
flicker(onComplete){ | |
let speed = 0.1 + Math.random() * 0.1; | |
let ease = RoughEase.ease.config({ | |
template: Power2.easeInOut, | |
strength: 0.3, | |
points: 10, | |
taper: "none", | |
randomize: true, | |
clamp: true | |
}); | |
var tl = new TimelineMax({ | |
onComplete: function(){ this.reverse() }, | |
onReverseComplete: onComplete, | |
onReverseCompleteScope: this, | |
onReverseCompleteParams: [onComplete] | |
}); | |
let scale = 2 + Math.random() * 2 | |
tl.to(this.scale, speed, { | |
y: scale, | |
ease: ease, | |
}); | |
tl.to(this.position, speed, { | |
y: '+='+(scale * 1.5), | |
ease: ease, | |
}); | |
// tl.to(this.rotation, speed, { | |
// x: (Math.PI / 4) * (Math.random() - 0.5), | |
// //y: (Math.PI / 6) * (Math.random() - 0.5), | |
// //z: (Math.PI / 5) * (Math.random() - 0.5), | |
// ease: ease, | |
// }); | |
tl.to(this.light, speed, { | |
power: 8 + 9 * Math.random(), | |
ease: ease, | |
}); | |
} | |
}); | |
// fire = new Fire(); | |
// fire.position.y = 10; | |
let colors = [ 0xdb2902, 0xfb4402 ]; | |
const TWOPI = Math.PI * 2; | |
const HALFPI = Math.PI / 2; | |
let flames = Array(5).fill(null); | |
flames.forEach((flame,i)=>{ | |
flame = new Flame(colors[ Math.floor(colors.length * Math.random()) ]); | |
flame.position.z = 9 * Math.cos((i / flames.length) * TWOPI) + Math.sin(Math.random()); | |
flame.position.x = 9 * Math.sin((i / flames.length) * TWOPI) + Math.sin(Math.random()); | |
flame.position.y = 14; | |
scene.add(flame); | |
}); | |
let fire; | |
/*////////////////////////////////////////*/ | |
let fireParticles; | |
function makeFireParticles(){ | |
let pointGeometry = new THREE.Geometry(); | |
for ( i = 0; i < 20; i ++ ) { | |
var vertex = new THREE.Vector3(); | |
vertex.x = Math.random() * 16 - 8; | |
vertex.y = Math.random() * 60; | |
vertex.z = Math.random() * 16 - 8; | |
vertex._maxHeight = 50 + Math.random() * 10; | |
vertex._speed = 0.1 + Math.random() * 0.1; | |
pointGeometry.vertices.push( vertex ); | |
} | |
pointGeometry.verticesNeedUpdate = true; | |
pointGeometry.normalsNeedUpdate = true; | |
pointGeometry.computeFaceNormals(); | |
let pointMaterial = new THREE.PointsMaterial( { | |
//size: 16, | |
color: 0xFF0000, | |
map: makeSprite(), | |
blending: THREE.AdditiveBlending, | |
depthTest: true, | |
transparent : true, | |
opacity: 0.4, | |
}); | |
let particles = new THREE.Points( pointGeometry, pointMaterial ); | |
scene.add(particles); | |
let count = 0; | |
return function(){ | |
count += 0.01; | |
particles.geometry.vertices.forEach( (vertex, i) => { | |
vertex.x += Math.sin(count * 1.5 + i) * 0.1; | |
vertex.z += Math.cos(count * 1.5 + i) * 0.1; | |
vertex.y += vertex._speed; | |
if ( vertex.y > vertex._maxHeight ) { vertex.y = 0; } | |
}); | |
particles.geometry.verticesNeedUpdate = true; | |
} | |
} | |
fireParticles = makeFireParticles(); | |
/*////////////////////////////////////////*/ | |
// LOG | |
let logMaterial = new THREE.MeshPhongMaterial({ | |
color: 0x5C2626, | |
shininess: 10, | |
shading: THREE.FlatShading | |
}); | |
let logEndMaterial = new THREE.MeshPhongMaterial({ | |
color: 0xF9F5CE, | |
shininess: 10, | |
shading: THREE.FlatShading | |
}); | |
function Log(){ | |
let geometry = new THREE.BoxGeometry(10,10,40); | |
THREE.Mesh.call(this,geometry, logMaterial); | |
let endGeometry = new THREE.BoxGeometry(7,7,0.5); | |
let end = new THREE.Mesh(endGeometry, logEndMaterial); | |
end.position.z = 20; | |
this.add(end); | |
let otherEnd = new THREE.Mesh(endGeometry, logEndMaterial); | |
otherEnd.position.z = -20; | |
this.add(otherEnd); | |
//let otherEnd = end.clone(); | |
// otherEnd.position.z = -20; | |
// this.add(end, otherEnd); | |
this.castShadow = true; | |
this.receiveShadow = true; | |
} | |
Log.prototype = Object.assign(THREE.Mesh.prototype, { | |
constructor: Log | |
}); | |
let logs = Array(3).fill(null); | |
logs.forEach((log,i)=>{ | |
log = new Log(); | |
//log.position.z = 15 * Math.cos((i / logs.length) * TWOPI); | |
log.position.x = 15 * Math.sin((i / logs.length) * TWOPI) + Math.sin(Math.random()); | |
log.position.y = 5; | |
log.position.z = 1; | |
log.rotation.z = HALFPI / 2;// * Math.sin(i+1); | |
//log.rotation.y = HALFPI / 2 * Math.cos((i / logs.length) * TWOPI); | |
scene.add(log); | |
}); | |
/*////////////////////////////////////////*/ | |
// OUTSIDE GROUND | |
function snowyGround(){ | |
let geometry = new THREE.PlaneGeometry( 500, 500, 22, 12 ); | |
for (let i = 0; i < geometry.vertices.length; i++) { | |
//geometry.vertices[i].x += (Math.cos( i * i )+1/2); | |
//geometry.vertices[i].y += (Math.cos(i )+1/2); | |
geometry.vertices[i].z = (Math.sin(i * i * i)+1/2) * 3; | |
} | |
geometry.verticesNeedUpdate = true; | |
geometry.normalsNeedUpdate = true; | |
geometry.computeFaceNormals(); | |
let material = new THREE.MeshPhongMaterial({ | |
color: 0xFFFFFF, | |
shininess: 60, | |
//metalness: 1, | |
//specularMap: noiseMap(512,255), | |
bumpMap: noise, | |
bumpScale: 0.025, | |
//emissive: 0xEBF7FD, | |
//emissiveIntensity: 0.05, | |
shading: THREE.SmoothShading | |
}); | |
let plane = new THREE.Mesh( geometry, material ); | |
plane.rotation.x = Math.PI / -2; | |
plane.receiveShadow = true; | |
plane.position.y = -5; | |
return plane; | |
} | |
scene.add( snowyGround() ); | |
/*////////////////////////////////////////*/ | |
let treeMaterial = new THREE.MeshPhongMaterial( { | |
color: 0x2C9E4B, | |
shininess: 20, | |
//bumpMap: noiseMap(256, 5), | |
//bumpScale: 0.5, | |
side: THREE.FrontSide, | |
shading: THREE.SmoothShading | |
}); | |
function Cone(size, translate){ | |
size = size || 10; | |
this.geometry = new THREE.CylinderGeometry( size / 2, size, size, 6 ); | |
if ( translate ) { | |
this.geometry.applyMatrix( new THREE.Matrix4().makeTranslation(0, size, 0) ); | |
} | |
THREE.Mesh.call(this, this.geometry, treeMaterial); | |
} | |
Cone.prototype = Object.assign(THREE.Mesh.prototype,{ | |
constructor: Cone, | |
}); | |
function Tree(size) { | |
size = size || 6 + Math.random(); | |
THREE.Object3D.call(this); | |
let lastCone; | |
let cone; | |
for (let i = 0; i < size; i++) { | |
cone = new Cone( (size - i) + 1, i); | |
cone.position.y = 0; | |
if ( lastCone ) { | |
let box = new THREE.Box3().setFromObject( lastCone ); | |
cone.position.y = (box.max.y + box.min.y) / 2; | |
} else { | |
cone.position.y += 2; | |
} | |
lastCone = cone; | |
cone.castShadow = true; | |
cone.receiveShadow = true; | |
this.add( cone ); | |
} | |
}; | |
Tree.prototype = Object.assign(THREE.Object3D.prototype,{ | |
constructor: Tree, | |
}); | |
/*////////////////////////////////////////*/ | |
let trees = []; | |
for (let i = 0; i < 24; ) { | |
let tree = new Tree; | |
tree.scale.set(3.25,3.25,3.25); | |
tree.position.x = Math.sin(i + Math.random() * 0.2) * 200;//(treeCount/2 - i) * 30; | |
tree.position.z = Math.cos(i + Math.random() * 0.1) * 260; | |
trees.push(tree); | |
scene.add(tree); | |
i ++; //= Math.random() * 1.2; | |
} | |
/*////////////////////////////////////////*/ | |
// FALLING SNOW | |
function pointsParticles(){ | |
let pointGeometry = new THREE.Geometry(); | |
for ( i = 0; i < 120; i ++ ) { | |
var vertex = new THREE.Vector3(); | |
vertex.x = Math.random() * 200 - 100; | |
vertex.y = Math.random() * 100; | |
vertex.z = Math.random() * 200 - 100; | |
pointGeometry.vertices.push( vertex ); | |
} | |
pointGeometry.verticesNeedUpdate = true; | |
pointGeometry.normalsNeedUpdate = true; | |
pointGeometry.computeFaceNormals(); | |
let pointMaterial = new THREE.PointsMaterial( { | |
//size: 16, | |
map: makeSprite(), | |
blending: THREE.AdditiveBlending, | |
depthTest: true, | |
transparent : true, | |
opacity: 0.2, | |
}); | |
let particles = new THREE.Points( pointGeometry, pointMaterial ); | |
scene.add(particles); | |
console.log( particles.geometry ); | |
let count = 0; | |
return function(){ | |
count += 0.01; | |
particles.geometry.vertices.forEach( (vertex, i) => { | |
vertex.x += Math.sin(count + i) * 0.05; | |
vertex.z += Math.cos(count + i) * 0.05; | |
vertex.y -= 0.2; | |
if ( vertex.y < 0 ) { vertex.y = 100; } | |
}); | |
particles.geometry.verticesNeedUpdate = true; | |
} | |
} | |
let updateParticles; | |
updateParticles = pointsParticles(); | |
renderer.gammaInput = true; | |
renderer.gammaOutput = true; | |
/*////////////////////////////////////////*/ | |
let count = 3; | |
function render () { | |
requestAnimationFrame( render ); | |
count += 0.03; | |
orbit.update(); | |
if ( updateParticles ) { updateParticles(count); } | |
if ( fireParticles ) { fireParticles(count); } | |
if ( fire && fire.flicker ) { fire.flicker(count); } | |
// scene.traverse( (child) => { | |
// if ( child.material ) { child.material.needsUpdate = true; } | |
// }); | |
renderer.toneMappingExposure = Math.pow( 0.91, 5.0 ); | |
renderer.render( scene, camera ); | |
}; | |
render(); |
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<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r79/three.min.js"></script> | |
<script src="https://threejs.org/examples/js/controls/OrbitControls.js"></script> | |
<script src="http://codepen.io/shshaw/pen/epmrgO"></script> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/1.19.0/TweenMax.min.js"></script> |
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canvas { display: block; } |
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