Stacking coins in THREE.js. Click to stop and start the rotation.
Stacks On Stacks On Stacks
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license: gpl-3.0 |
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<html> | |
<head> | |
<style> | |
body { | |
margin: 0; | |
} | |
</style> | |
</head> | |
<body> | |
<div id="scene"></div> | |
<script src="https://unpkg.com/three@0.105.2/build/three.min.js"></script> | |
<script src="https://unpkg.com/geometric@1.1.1/build/geometric.min.js"></script> | |
<script> | |
const scene = new THREE.Scene(); | |
const camera = (_ => { | |
const camera = new THREE.PerspectiveCamera(35, innerWidth / innerHeight, 0.1, 1000); | |
camera.position.set(0, 50, -100); | |
camera.lookAt(0, 10, 0); | |
return camera; | |
})(); | |
const renderer = (_ => { | |
const renderer = new THREE.WebGLRenderer(); | |
renderer.setClearColor("#eee"); | |
renderer.setPixelRatio(devicePixelRatio); | |
renderer.shadowMap.enabled = true; | |
renderer.shadowMap.type = THREE.PCFSoftShadowMap; | |
renderer.gammaOutput = true; | |
renderer.gammaFactor = 2.2; | |
document.getElementById("scene").appendChild(renderer.domElement); | |
return renderer; | |
})(); | |
const plane = (_ => { | |
const geo = new THREE.PlaneBufferGeometry(2000, 2000); | |
const mat = new THREE.MeshPhongMaterial({ color: "#888" }); | |
const plane = new THREE.Mesh(geo, mat); | |
plane.position.set(0, 0, 0); | |
plane.rotation.x = -.5 * Math.PI; | |
scene.add(plane); | |
plane.receiveShadow = true; | |
return plane; | |
})(); | |
for (let i = 0; i < 25; i++){ | |
drawCoin(i); | |
} | |
for (let i = 0; i < 10; i++){ | |
drawCoin(i, innerWidth / 60, true); | |
} | |
for (let i = 0; i < 5; i++){ | |
drawCoin(i, innerWidth / -60, true); | |
} | |
const ambient = (_ => { | |
const light = new THREE.AmbientLight(0x000000, 0.1); | |
scene.add(light); | |
return light; | |
})(); | |
const spotBehind = (_ => { | |
const light = new THREE.SpotLight("#fff", 0.3); | |
light.position.set(-8, 50, 19); | |
light.castShadow = true; | |
light.shadow.mapSize.width = 1024; | |
light.shadow.mapSize.height = 1024; | |
scene.add(light); | |
return light; | |
})(); | |
const spotLeft = (_ => { | |
const light = new THREE.SpotLight("#fff", 1); | |
light.position.set(50, 30, -40); | |
light.castShadow = true; | |
light.shadow.mapSize.width = 1024; | |
light.shadow.mapSize.height = 1024; | |
scene.add(light); | |
return light; | |
})(); | |
const spotRight = (_ => { | |
const light = new THREE.SpotLight("#fff", .8); | |
light.position.set(-58, 5, -40); | |
light.castShadow = true; | |
light.shadow.mapSize.width = 1024; | |
light.shadow.mapSize.height = 1024; | |
scene.add(light); | |
return light; | |
})(); | |
const spotOverhead = (_ => { | |
const light = new THREE.SpotLight("#fff", 1); | |
light.position.set(0, 800, 0); | |
light.castShadow = true; | |
light.shadow.mapSize.width = 1024; | |
light.shadow.mapSize.height = 1024; | |
scene.add(light); | |
return light; | |
})(); | |
let clicked = false; | |
document.addEventListener("click", _ => { | |
clicked = !clicked; | |
}); | |
function animate(){ | |
requestAnimationFrame(animate); | |
if (!clicked){ | |
scene.traverse((e) => { | |
if (e instanceof THREE.Mesh && e != plane) { | |
const origin = [0, 0]; | |
[e.position.x, e.position.z] = geometric.pointRotate([e.position.x, e.position.z], 2, origin); | |
} | |
}); | |
} | |
camera.aspect = innerWidth / innerHeight; | |
camera.updateProjectionMatrix(); | |
renderer.setSize(innerWidth, innerHeight); | |
renderer.render(scene, camera); | |
} | |
animate(); | |
function drawCoin(i, x = 0, receiveShadow = false){ | |
const geo = new THREE.CylinderBufferGeometry(5, 5, 1, 32); | |
const mat = new THREE.MeshStandardMaterial({ | |
color: "#ffe685", | |
metalness: 1, | |
roughness: .4 | |
}); | |
const cylinder = new THREE.Mesh(geo, mat); | |
cylinder.position.x = x + Math.random(); | |
cylinder.position.y = i; | |
cylinder.castShadow = true; | |
cylinder.receiveShadow = receiveShadow; | |
scene.add(cylinder); | |
} | |
</script> | |
</body> | |
</html> |
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