Sphere of Squares
/**
* Copyright shapevent ( http://wonderfl.net/user/shapevent )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/sWcW
*/
package {
import flash.display.*;
import flash.events.*;
import flash.geom.*;
import flash.filters.*;
[SWF(backgroundColor=0x000000)]
dynamic public class Test extends MovieClip {
private var squareNum:int;
private var hw:Number;
private var hh:Number;
private var verts:Vector.<Number>;
private var cmds:Vector.<int>;
private var tempVerts:Vector.<Number>;
private var newVerts:Vector.<Number>;
private var pVerts:Vector.<Number>;
private var uv:Vector.<Number>;
private var vectors:Shape;
private var canvas:BitmapData;
private var blurred:BitmapData;
private var blur:BlurFilter;
private var m:Matrix3D;
private var radius:Number;
private var dx:Number;
private var dy:Number;
private var pnt:Point;
public function Test(){
// init
squareNum = 1000;
hw = stage.stageWidth / 2;
hh = stage.stageHeight / 2;
// verts defines a single square
verts = Vector.<Number>([-20, 0, 0, 20, 0, 0, 20, 0, 40, -20, 0, 40, -20, 0, 0]);
cmds = Vector.<int>([1,2,2,2,2]);
tempVerts = new Vector.<Number>();
newVerts = new Vector.<Number>();
pVerts = new Vector.<Number>(10 * squareNum);
uv = new Vector.<Number>(15 * squareNum);
vectors = new Shape();
canvas = new BitmapData(stage.stageWidth,stage.stageHeight,false, 0x000000);
addChild(new Bitmap(canvas));
blurred = new BitmapData(stage.stageWidth,stage.stageHeight,false, 0x000000);
blur = new BlurFilter(20,20,1);
m = new Matrix3D();
radius = 200;
// duplicate the verts array a bunch of times
// each time moving the square to a random place on the
// circumference of a sphere
for (var i:int = 0; i<squareNum; i++){
m.identity();
var s:Number = Math.random()*.5 + .5;
m.appendScale(s, s, s);
m.appendRotation(90,Vector3D.X_AXIS);
m.appendTranslation(0, 0, radius);
m.appendRotation(Math.random()*360,Vector3D.X_AXIS);
m.appendRotation(Math.random()*360,Vector3D.Y_AXIS);
m.appendRotation(Math.random()*360,Vector3D.Z_AXIS);
m.transformVectors(verts,tempVerts);
newVerts = newVerts.concat(tempVerts);
cmds = cmds.concat(Vector.<int>([1,2,2,2,2]));
}
newVerts.fixed = pVerts.fixed = uv.fixed = true;
dx = 0, dy = 0;
pnt = new Point();
addEventListener(Event.ENTER_FRAME, onLoop);
}
// private methods
private function onLoop(evt:Event):void {
dx += (mouseX - dx) / 4;
dy += (mouseY - dy) / 4;
m.identity();
m.appendRotation(dx,Vector3D.Z_AXIS);
m.appendRotation(dy,Vector3D.X_AXIS);
m.appendTranslation(hw,hh, 0);
Utils3D.projectVectors(m, newVerts, pVerts, uv);
with(vectors.graphics){
clear();
beginFill(0xFFFFFF);
drawCircle(hw, hh, radius+10);
beginFill(0x000000);
drawPath(cmds, pVerts, GraphicsPathWinding.NON_ZERO);
}
canvas.fillRect(canvas.rect, 0x000000);
canvas.draw(vectors);
blurred.copyPixels(canvas, canvas.rect, pnt);
blurred.applyFilter(blurred,blurred.rect, pnt, blur);
canvas.draw(blurred, null, null, BlendMode.SCREEN);
}
}
}