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DaveAtDog/positionObjectsOnSphereSurface.js

Last active June 9, 2016 14:26
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My preferred way of positioning 3D objects on the surface of a sphere.
Raw
positionObjectsOnSphereSurface.js
// Based on example C# code from http://forum.unity3d.com/threads/evenly-distributed-points-on-a-surface-of-a-sphere.26138/#post-2031195
// objects is an array of THREE.js 3D Objects
function positionObjectsOnSphereSurface(objects) {
var radius = 900;
var n = objects.length;
var inc = Math.PI * (3 - Math.sqrt(5));
var off = 2 / n;
var x = 0;
var y = 0;
var z = 0;
var r = 0;
var phi = 0;
for (var k = 0; k < n; k++) {
var object = objects[k];
y = k * off - 1 + (off / 2);
r = Math.sqrt(1 - y * y);
phi = k * inc;
x = Math.cos(phi) * r;
z = Math.sin(phi) * r;
x *= radius;
y *= radius;
z *= radius;
object.position.x = x;
object.position.y = y;
object.position.z = z;
}
}
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