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<!DOCTYPE html> |
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<html> |
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<head> |
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<meta charset="utf-8"> |
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<title>Recursive Polygons in 3D with Snowflakes</title> |
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<script src="https://aframe.io/releases/1.2.0/aframe.min.js"></script> |
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<script src="https://unpkg.com/aframe-environment-component/dist/aframe-environment-component.min.js"></script> |
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<style> |
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#canvas { |
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height: 500px; |
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width: 800px; |
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} |
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</style> |
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</head> |
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<body> |
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<a-scene> |
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<a-entity environment="preset: forest"></a-entity> |
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<a-entity camera position="0 1.6 0" look-controls wasd-controls></a-entity> |
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</a-scene> |
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<script> |
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AFRAME.registerComponent('snowflake', { |
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init: function() { |
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this.el.setAttribute('geometry', { |
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primitive: 'sphere', |
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radius: 0.05 |
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}); |
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this.el.setAttribute('material', { color: '#FFF' }); |
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this.el.object3D.position.set( |
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Math.random() - 0.5, |
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Math.random() - 0.5, |
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Math.random() - 0.5 |
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); |
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this.velocity = new THREE.Vector3(0, -0.05, 0); |
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}, |
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tick: function() { |
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this.el.object3D.position.add(this.velocity); |
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if (this.el.object3D.position.y <= -0.5) { |
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this.el.parentNode.removeChild(this.el); |
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} |
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} |
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}); |
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function createSnowflakeCloud(x, y, z) { |
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let cloud = document.createElement('a-entity'); |
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cloud.object3D.position.set(x, y, z); |
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setInterval(() => { |
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let snowflakeEl = document.createElement('a-entity'); |
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snowflakeEl.setAttribute('snowflake', ''); |
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cloud.appendChild(snowflakeEl); |
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}, 100); |
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document.querySelector('a-scene').appendChild(cloud); |
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} |
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for (let x = -10; x <= 10; x += 10) { |
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for (let z = -10; z <= 10; z += 10) { |
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createSnowflakeCloud(x, 5, z); |
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} |
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} |
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createSnowflakeCloud(0, 8, 0); |
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</script> |
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</body> |
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</html> |
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