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HTML

CSS

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JavaScript

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Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

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Behavior

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If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

            
              <ul class="colours">
	<li></li>
	<li></li>
	<li></li>
	<li></li>
	<li></li>
</ul>
<div class="pencil__border">
	<div></div>
	<div></div>
	<div class="pencil__border-inner"></div>
</div>
<button class="pencil__refresh btn">
	Refresh
</button>
<button class="pencil__submit btn">Save PNG</button>
            
          
!

CSS

            
              #mfPreviewBar {
	display: none !important;
}

html,
body {
  position: fixed;
  overflow: hidden;
	touch-action: none;
}

body {
	background-color: #f7f4f0;
	cursor: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/605067/cursor.png'), auto;
	font-family: 'Galano Grotesque Semi Bold';
	margin: 0;
	overflow: hidden;
}

button {
	font-family: 'Galano Grotesque Semi Bold';
}

.colours {
	bottom: 90px;
	display: none;
	left: 50%;
	list-style-type: none;
	padding-left: 0;
	position: absolute;
	transform: translateX(-50%);
	z-index: 10;
	
	@media (min-width: 1024px) {
		display: flex;
	}
	
	li {
		border-radius: 50%;
		display: inline-block;
		height: 14px;
		margin: 0 12px;
		width: 14px;
		
		&:nth-child(1){
			background-color: #100c08;
		}
		&:nth-child(2){
			background-color: #759BA9;
		}
		&:nth-child(3){
			background-color: #77dd77;
		}
		&:nth-child(4){
			background-color: #ff6961;
		}
		&:nth-child(5){
			background-color: #ffd1dc;
		}
	}
}

.pencil__border {
	bottom: 0;
	left: 0;
	pointer-events: none;
	position: absolute;
	right: 0;
	top: 0;
	z-index: 3;
	
	div {
		&:nth-child(1),
		&:nth-child(2) {
			height: 100%;
			left: 0;
			position: absolute;
			top: 0;
			width: 100%;

			&:before,
			&:after {
				background-color: #FF851B;
				content: "";
				opacity: .98;
				position: absolute;
			}
		}
		
		&:nth-child(1) {
			
			&:before {
				height: 20px;
				left: 20px;
				top: 0;
				width: 100%;
				
				@media (min-width: 1024px) {
					height: 60px;
					left: 55px;	
				}
			}
			
			&:after {
				bottom: 60px;
				height: 100%;
				left: 0;
				width: 20px;
				
				@media (min-width: 1024px) {
					bottom: 80px;
					width: 55px;
				}
			}
		}

		&:nth-child(2) {
			
			&:before {
				bottom: 0;
				right: 20px;
				height: 60px;
				width: 100%;
				
				@media (min-width: 1024px) {
				 height: 80px;
					right: 55px;
				}
			}
			
			&:after {
				bottom: 0;
				height: 100%;
				right: 0;
				width: 20px;
				
				@media (min-width: 1024px) {
				 bottom: -60px;
					width: 55px;
				}
			}
		}
	}
}

.pencil__border-inner {
	border: solid 1px #000;
	border-width: 2px;
	border-style: solid;
	bottom: 58px;
	left: 19px;
	position: absolute;
	right: 19px;
	top: 19px;
				
	@media (min-width: 1024px) {
	  bottom: 78px;
	  left: 54px;
	  right: 54px;
	  top: 58px;
	}
}

.pencil__refresh {
	background-color: #FCF4EA;
	border: none;
	border-radius: 50%;
	bottom: 18px;
	cursor: pointer;
	height: 26px;
	padding: 4px 1px 0px;
	position: absolute;
	left: 50%;
	text-align: center;
	transform: translateX(-50%);
	width: auto;
	z-index: 3;
				
	@media (min-width: 1024px) {
		bottom: 27px;
		left: 80px;
		transform: none;
	}
}

.pencil__submit {
	bottom: 27px;
	display: none;
	position: absolute;
	right: 80px;
	z-index: 4;
				
	@media (min-width: 1024px) {
	 display: block;
	}
}

.btn {
	background-color: transparent;
	border: none;
	cursor: pointer;
	font-size: 13px;
	letter-spacing: .15em;
	outline: none;
	padding: 5px 10px 1px 10px;
	text-transform: uppercase;
	user-select: none;
	-moz-user-select: none;
}
            
          
!

JS

            
              // -- Drawing
const colors  = [
	"#100c08",
	"#759BA9",
	"#77dd77",
	"#ff6961",
	"#ffd1dc"
]

let currentColorIndex = 0

let colorButtons = document.querySelectorAll('.colours li'),
		colorButtonsL = colorButtons.length

for (var x = 0; x < colorButtonsL; x++) {
	((x) => {
		colorButtons[x].addEventListener('click', () => {
			setActiveColour(x)
		})		
  })(x)
}

function setActiveColour(x) {
	currentColorIndex = x
}

// -- Drawing
const drawingCanvas = document.createElement('canvas')
drawingCanvas.width = window.innerWidth
drawingCanvas.height = window.innerHeight

drawingCanvas.style.position = 'fixed'
drawingCanvas.style.left = 0
drawingCanvas.style.top = 0
drawingCanvas.style.zIndex = 1

document.body.appendChild(drawingCanvas)

var drawingCtx = drawingCanvas.getContext('2d')

let isDrawing,
		newlyUp = false,
		lastPoint

let pencilPathDefaults = {
	minThickness: .2,
	maxThickness: 2,
}

let pencilPathCurrent = {
	thickness: .2
}

let pencilPathTarget = {
	thickness: .2
}

document.addEventListener('touchstart', handleMouseDown)
document.addEventListener('mousedown', handleMouseDown)

function handleMouseDown(e) {
	if (e.target.localName !== 'canvas') return
  isDrawing = true
	pencilTargetPos.height = 0
	pencilTargetPos.heightRotate = .2

	pencilPathTarget.thickness = pencilPathDefaults.maxThickness
	
	let xPos = (e.touches ? e.touches[0].clientX : e.clientX),
			yPos = (e.touches ? e.touches[0].clientY : e.clientY)

	let currentPoint = { x: xPos, y: yPos }

	drawingCtx.beginPath()
	drawingCtx.fillStyle = colors[currentColorIndex];
	drawingCtx.globalAlpha = .9
	drawingCtx.arc(
		currentPoint.x + 5, currentPoint.y + 5, pencilPathDefaults.thickness,
		false, Math.PI * 2, false)
	drawingCtx.fill()

	lastPoint = currentPoint
}

document.addEventListener('touchend', handleMouseUp)
document.addEventListener('mouseup', handleMouseUp)

function handleMouseUp() {
	newlyUp = true
  isDrawing = false
	pencilTargetPos.height = pencilDefaultPos.height
	pencilTargetPos.heightRotate = 0
	pencilPathTarget.thickness = pencilPathDefaults.minThickness
	
	setTimeout(fullyUp, 50)
}

function fullyUp() {
	newlyUp = false
}

// -- Pencil
// Renderer
var renderer = new THREE.WebGLRenderer({
	alpha: true,
	antialias: true,
	autoClear: true
})

renderer.setClearColor(0x000000, 0)
renderer.setPixelRatio(window.devicePixelRatio)
renderer.setSize(window.innerWidth, window.innerHeight)
renderer.domElement.style.zIndex = 5
renderer.domElement.style.position = 'relative'
renderer.domElement.style.pointerEvents = 'none'
document.body.appendChild(renderer.domElement)

// Ensure Full Screen on Resize
function fullScreen () {
	camera.aspect = window.innerWidth / window.innerHeight
	camera.updateProjectionMatrix()

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

window.addEventListener('resize', fullScreen, false)

// Scene
var scene = new THREE.Scene()

// Lighting

let hemiLight,
		dirLight

function createLights () {
	hemiLight = new THREE.HemisphereLight( 0xffffff, 0xffffff, 0.6 )
	hemiLight.color.setHSL( 0.6, 1, 0.2 )
	hemiLight.groundColor.setHSL( 0.095, 1, 0.75 )
	hemiLight.position.set( 0, 0, 50 )
	scene.add( hemiLight )
	hemiLightHelper = new THREE.HemisphereLightHelper( hemiLight, 10 )
	// scene.add( hemiLightHelper )
	
	directionalLight = new THREE.DirectionalLight( 0xffffff, 1 )
	directionalLight.color.setHSL( 1, 1, 1 )
	directionalLight.position.set( -.5, 1, 10 )
	scene.add( directionalLight )
	directionalLight.castShadow = true
	directionalLight.shadow.mapSize.width = 2048
	directionalLight.shadow.mapSize.height = 2048
	directionalLightHelper = new THREE.DirectionalLightHelper( directionalLight, 10 )
	// scene.add( directionalLightHelper )
	
	spotLight = new THREE.SpotLight( 0xffffff, 0.4 )
	spotLight.color.setHSL( 1, 1, 1 )
	spotLight.position.set( -7, 1, 2 )
	scene.add( spotLight )
	spotLight.castShadow = false
	spotLight.shadow.mapSize.width = 2048
	spotLight.shadow.mapSize.height = 2048
	spotLightHelper = new THREE.SpotLightHelper( spotLight, 10 )
	// scene.add( spotLightHelper )
	
	topLight = new THREE.SpotLight( 0xffffff, 0.1 )
	topLight.color.setHSL( 1, 1, 1 )
	topLight.position.set( 1, -7, 2 )
	scene.add( topLight )
	topLight.castShadow = false
	topLight.shadow.mapSize.width = 2048
	topLight.shadow.mapSize.height = 2048
	topLightHelper = new THREE.SpotLightHelper( topLight, 10 )
	// scene.add( topLightHelper )
}

createLights()

function createGround () {
	let groundGeo = new THREE.PlaneBufferGeometry( 10000, 10000 )
	let groundMat = new THREE.ShadowMaterial()
	groundMat.opacity = 0.1

	this.ground = new THREE.Mesh( groundGeo, groundMat )
	this.ground.position.z = 0
	this.ground.position.y = 0
	this.ground.receiveShadow = true

	this.scene.add( this.ground )
}

createGround()

// Shadows
renderer.shadowMap.enabled = true
renderer.shadowMapSoft = true
renderer.shadowMap.type = THREE.PCFSoftShadowMap

// Camera and position
var camera = new THREE.PerspectiveCamera( 8, window.innerWidth / window.innerHeight, 1, 10000 )

camera.position.y = 0
camera.position.z = 12

// Custom (OGJ) Objects
const codepenAssetUrl = 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/605067/'

let onProgress = function ( xhr ) {
	if ( xhr.lengthComputable ) {
		let percentComplete = xhr.loaded / xhr.total * 100
		// console.log( Math.round(percentComplete, 2) + '% downloaded' )
	}
}

let onError = function ( xhr ) {
	console.log('ERROR')
}

var mtlLoader = new THREE.MTLLoader()
mtlLoader.setPath(codepenAssetUrl)

let pencil,
		pencilDefaultPos = {
			height: .04,
			xRotate: 0,
			yRotate: 0,
			zRotate: 0
		},
		pencilPos = {
			height: pencilDefaultPos.height,
			xRotate: 0,
			yRotate: 0,
			zRotate: 0
		},
		pencilTargetPos = {
			height: pencilDefaultPos.height,
			xRotate: 0,
			yRotate: 0,
			zRotate: 0,
			heightRotate: 0
		}

mtlLoader.load('pencil-multi.mtl', function (materials) {
	materials.preload()

	var objLoader = new THREE.OBJLoader()
	objLoader.setMaterials(materials)
	objLoader.setPath(codepenAssetUrl)
	objLoader.load('pencil-multi.obj', function (obj) {
		
		obj.traverse( function ( child ) {
			if ( child instanceof THREE.Mesh ) {
				child.castShadow = true

				let area = new THREE.Box3()
				area.setFromObject( child )

				let yOffset = area.min.y
				obj.position.y = 0
			}
		})

		obj.castShadow = true

		pencil = obj

		rotateAroundWorldAxis(pencil, new THREE.Vector3(1, 0, 0), THREE.Math.degToRad(90))
		rotateAroundWorldAxis(pencil, new THREE.Vector3(1, 0, 0), THREE.Math.degToRad(-10))
		rotateAroundWorldAxis(pencil, new THREE.Vector3(0, 1, 0), THREE.Math.degToRad(20))

		pencilDefaultPos.xRotate = pencil.rotation.x
		pencilDefaultPos.yRotate = pencil.rotation.y
		pencilDefaultPos.zRotate = pencil.rotation.z

		scene.add(pencil)

		animate()
		document.addEventListener('touchmove', stopScroll)
		document.addEventListener('touchmove', mouseMove)
		document.addEventListener('mousemove', mouseMove)

	}, onProgress, onError, null, false)
}, onProgress, onError, null, false)

function animate () {	
	// Pencil position from paper
	pencilPos.height += (pencilTargetPos.height - pencilPos.height) * .2

	// Move pencil point position if required
	pencil.position.copy(mousePos)
	pencil.position.x += pencilPos.height
	pencil.position.y += pencilPos.height
	pencil.position.z += pencilPos.height
	
	// Pencil thickness
	pencilPathCurrent.thickness += (pencilPathTarget.thickness - pencilPathCurrent.thickness) * .2
	
	// Tilt pencil
	// x
	if ( isNotClose(pencilPos.xRotate, pencilTargetPos.xRotate) ) {
		let newRotate = (pencilTargetPos.xRotate - pencilPos.xRotate) * .2
		pencilPos.xRotate += Math.round(newRotate * 1000) / 1000
		pencil.rotation.x = pencilPos.xRotate + pencilDefaultPos.xRotate
	}
	
	// y
	if ( isNotClose(pencilPos.yRotate, pencilTargetPos.yRotate) ) {
		let newRotate = (pencilTargetPos.yRotate - pencilPos.yRotate) * .2
		pencilPos.yRotate += Math.round(newRotate * 1000) / 1000
		pencil.rotation.y = pencilPos.yRotate + pencilDefaultPos.yRotate
	}
	
	// z
	let targetZAngle = pencilTargetPos.zRotate + pencilTargetPos.heightRotate
	
	if ( isNotClose(pencilPos.zRotate, targetZAngle) ) {
		let newRotate = (targetZAngle - pencilPos.zRotate) * .2
		pencilPos.zRotate += Math.round(newRotate * 1000) / 1000
		pencil.rotation.z = pencilPos.zRotate + pencilDefaultPos.zRotate
	}
	
	window.requestAnimationFrame( animate )
	renderer.render( scene, camera )
}

function clearCanvas () {
	drawingCtx.clearRect(0, 0, drawingCtx.canvas.width, drawingCtx.canvas.height)		
}

let mouse = {
	x: 0,
	y: 0
},
mousePos = new THREE.Vector3(0, 0, 0),
mouseDirection = {
	x: 1,
	y: 1
}

function stopScroll (e) {
	e.preventDefault()
}

function mouseMove (e) {
	let xPos = (e.touches ? e.touches[0].clientX : e.clientX),
			yPos = (e.touches ? e.touches[0].clientY : e.clientY)
	
	// Update the mouse variable
	e.preventDefault()
	mouse.x = (xPos / window.innerWidth) * 2 - 1
	mouse.y = - (yPos / window.innerHeight) * 2 + 1
	
	if (!lastPoint) {
		lastPoint = { x: xPos, y: yPos }
	}

  // Make the sphere follow the mouse
  var vector = new THREE.Vector3(mouse.x + .01, mouse.y - .01, 0.5)
	vector.unproject(camera)

	var dir = vector.sub(camera.position).normalize()
	var distance = - camera.position.z / dir.z
	mousePos = camera.position.clone().add( dir.multiplyScalar( distance ) )
	
	// Mouse Tracking
	var currentPoint = { x: xPos, y: yPos }
	
	var angle = angleBetween(lastPoint, currentPoint)
	let xDist = distanceBetweenSingle(lastPoint.x, currentPoint.x)
	let yDist = distanceBetweenSingle(lastPoint.y, currentPoint.y)

	mouseDirection.x = (currentPoint.x > lastPoint.x ? 1 : -1)
	mouseDirection.y = (currentPoint.y > lastPoint.y ? -1 : 1)
	
	let newXAngle = (yDist / 100)
	let newZAngle = (xDist / 100) * -1
	
	let maxAngle = .25
	
	pencilTargetPos.xRotate = (newXAngle > -maxAngle && newXAngle < maxAngle ? newXAngle : (newXAngle < -maxAngle ? -maxAngle : maxAngle))
	pencilTargetPos.zRotate = (newZAngle > -maxAngle && newZAngle < maxAngle ? newZAngle : (newZAngle < -maxAngle ? -maxAngle : maxAngle))
	
	if (isDrawing || newlyUp) {
		let dist = distanceBetween(lastPoint, currentPoint)

		for (var i = 0; i < dist; i += .3) {
			x = lastPoint.x + (Math.sin(angle) * i)
			y = lastPoint.y + (Math.cos(angle) * i)
			
			drawingCtx.beginPath()
			drawingCtx.strokeStyle = 'blue';
			drawingCtx.globalAlpha = getRandomInt(.15, .25)
			drawingCtx.arc(
				x + 5, y + 5, pencilPathCurrent.thickness, 
				false, Math.PI * 2, false)
			drawingCtx.fill()
		}
	}
	
	lastPoint = currentPoint
}

// Refresh
let refreshBtn = document.querySelector('.pencil__refresh')
refreshBtn.addEventListener('click', handleRefresh)

function handleRefresh(e) {
	e.preventDefault()
	
	clearCanvas()	
}

// Save
let submitBtn = document.querySelector('.pencil__submit')
submitBtn.addEventListener('click', handleSubmit)

function handleSubmit(e) {
	e.preventDefault()
	
	savePNG()
}

function savePNG() {
	const freshCanvas = document.createElement('canvas')
	freshCanvas.width = drawingCanvas.width
	freshCanvas.height = drawingCanvas.height

	let freshCtx = freshCanvas.getContext('2d')
	
	freshCtx.fillStyle = "#f7f4f0"
	freshCtx.fillRect(0, 0, freshCanvas.width, freshCanvas.height)
	freshCtx.drawImage(drawingCanvas, 0, 0)
	
	let imageDataURL = freshCanvas.toDataURL()
	let image = new Image()
	
	image.src = imageDataURL
	
	var w = window.open("")
  w.document.write(image.outerHTML)
}

// Utilities
function rotateAroundWorldAxis (obj, axis, radians) {
	let rotWorldMatrix = new THREE.Matrix4()
  rotWorldMatrix.makeRotationAxis(axis.normalize(), radians)
  rotWorldMatrix.multiply(obj.matrix)
  obj.matrix = rotWorldMatrix
  obj.setRotationFromMatrix(obj.matrix)
}

function isNotClose (current, target) {
	return (current < target - .004 || current > target + .004)
}

function getRandomInt(min, max) {
  return Math.floor(Math.random() * (max - min + 1)) + min
}

function distanceBetween(point1, point2) {
  return Math.sqrt(Math.pow(point2.x - point1.x, 2) + Math.pow(point2.y - point1.y, 2))
}

function distanceBetweenSingle(point1, point2) {
  return point1 - point2
}

function angleBetween(point1, point2) {
  return Math.atan2( point2.x - point1.x, point2.y - point1.y )
}

function direction(point1, point2) {
  return Math.atan2( point1, point2)
}
            
          
!
999px

Console