004:forked from: 光を描いて3Dで回すエフェクト
PerfumeのPV 'baby cruising Love'の中に出てくる光のエフェクトを再現してみました。
* 1:13他 何回か出てきます
*
* Youtube [PV] "Perfume" baby cruising Love 2nd Enc
* http://www.youtube.com/watch?v=76yVixuKqGY
*
* マウスドラッグで光を描きます
* ハートの形とか可愛いかも
*
* http://www.kuma-de.com/blog/1-programming/1-javascript/2009-09-07/1202
/**
* Copyright umhr ( http://wonderfl.net/user/umhr )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/nxr9
*/
// forked from KinkumaDesign's 光を描いて3Dで回すエフェクト
/*
* PerfumeのPV 'baby cruising Love'の中に出てくる光のエフェクトを再現してみました。
* 1:13他 何回か出てきます
*
* Youtube [PV] "Perfume" baby cruising Love 2nd Enc
* http://www.youtube.com/watch?v=76yVixuKqGY
*
* マウスドラッグで光を描きます
* ハートの形とか可愛いかも
*
* http://www.kuma-de.com/blog/1-programming/1-javascript/2009-09-07/1202
*/
package {
import flash.display.Sprite;
import flash.events.Event;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.geom.ColorTransform;
import flash.geom.Rectangle;
[SWF(backgroundColor="0x000000")]
public class Main extends Sprite{
private var _red:Sample6;
private var _blue:Sample6;
private var _bitmapData:BitmapData;
public function Main():void {
_red = new Sample6(-50);
this.addChild(_red);
_blue = new Sample6(50);
this.addChild(_blue);
_bitmapData = new BitmapData(stage.stageWidth,stage.stageHeight,false,0x000000);
addChild(new Bitmap(_bitmapData))
addEventListener(Event.ENTER_FRAME, loop);
}
private function loop(e:Event):void {
//_red.update(null);
//_blue.update(null);
_bitmapData.lock();
_bitmapData.fillRect(new Rectangle(0,0,stage.stageWidth,stage.stageHeight), 0x000000);
_bitmapData.draw(_red, null,new ColorTransform(1,0,0,1,0,0,0,0));
_bitmapData.draw(_blue, null,new ColorTransform(0,1,1,1,0,0,0,0), "add");
_bitmapData.unlock();
}
}
}
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Graphics;
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.filters.BitmapFilter;
import flash.filters.BitmapFilterQuality;
import flash.filters.BlurFilter;
import flash.filters.GlowFilter;
import flash.geom.ColorTransform;
import flash.geom.Matrix;
import flash.geom.Matrix3D;
import flash.geom.PerspectiveProjection;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.geom.Utils3D;
import flash.geom.Vector3D;
import flash.sampler.NewObjectSample;
import flash.text.TextField;
import flash.text.TextFormat;
[SWF(width = "480", height = "480", backgroundColor = 0x000000, frameRate = "30")]
class Sample6 extends Sprite
{
public var penSp:Sprite;
public var canvas:Bitmap;
public var currentBmd:BitmapData;
public var lastDrawPoint:Point;
public var drawPoints:Vector.<DrawPoint>;
public var proj:Matrix3D;
public var vout:Vector.<Number> = new Vector.<Number>();
public var uvts:Vector.<Number> = new Vector.<Number>();
public var projverts:Vector.<Number> = new Vector.<Number>();
public var moveCount:int = 0;
public var hsw:Number;
public var hsh:Number;
public var logText:TextField;
private var _dX:Number;
public function Sample6(dX:Number)
{
_dX = dX;
this.addEventListener(Event.ADDED_TO_STAGE, onStage);
//stage.addEventListener(MouseEvent.MOUSE_DOWN, initHD);
}
private function onStage(event:Event):void {
stage.addEventListener(MouseEvent.MOUSE_DOWN, initHD);
}
private function initHD(e:MouseEvent):void
{
stage.removeEventListener(MouseEvent.MOUSE_DOWN, initHD);
hsw = stage.stageWidth / 2;
hsh = stage.stageHeight / 2;
var perse:PerspectiveProjection = new PerspectiveProjection();
perse.focalLength = 350;
proj = perse.toMatrix3D();
drawPoints = new Vector.<DrawPoint>();
initCanvas();
initLog();
stage.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownHD);
stage.addEventListener(MouseEvent.MOUSE_UP, mouseUpHD);
stage.addEventListener(Event.ENTER_FRAME, update);
}
private function initLog():void
{
logText = new TextField();
addChild(logText);
logText.x = 8;
logText.y = 6;
var tf:TextFormat = new TextFormat();
tf.color = 0xffffff;
tf.size = 10;
tf.font = "_gothicMono";
logText.selectable = false;
logText.defaultTextFormat = tf;
}
private function initCanvas():void
{
var w:Number = stage.stageWidth;
var h:Number = stage.stageHeight;
currentBmd = new BitmapData(w, h, true, 0xff000000);
canvas = new Bitmap(currentBmd);
addChild(canvas);
canvas.x = _dX*0.7;
penSp = new Sprite();
penSp.filters = [getGlowFilter(), getBlurFilter()];
}
private function getGlowFilter():GlowFilter {
var color:Number = 0xFFF2D3;
var alpha:Number = 0.85;
var blurX:Number = 16;
var blurY:Number = 16;
var strength:Number = 3;
var inner:Boolean = false;
var knockout:Boolean = false;
var quality:Number = BitmapFilterQuality.HIGH;
return new GlowFilter(color,
alpha,
blurX,
blurY,
strength,
quality,
inner,
knockout);
}
private function getBlurFilter():BlurFilter {
var blurX:Number = 2;
var blurY:Number = 2;
return new BlurFilter(blurX, blurY, BitmapFilterQuality.HIGH);
}
private function update(e:Event):void
{
updateDrawPoints();
updateDraw();
var r:Rectangle = currentBmd.rect;
currentBmd.lock();
currentBmd.fillRect(r, 0x000000);
currentBmd.draw(penSp, new Matrix(), new ColorTransform(), null, r);
currentBmd.unlock();
logText.text = "POINTS:" + drawPoints.length.toString();
}
private function updateDraw():void
{
var g:Graphics = penSp.graphics;
g.clear();
var len:int = drawPoints.length;
var drawPoint:DrawPoint;
var verts:Vector.<Number> = new Vector.<Number>();
var i:int;
for (i = 0; i < len; i++) {
drawPoint = drawPoints[i];
verts.push(drawPoint.drawX, drawPoint.drawY);
}
if (verts.length > 8) {
drawThickSprine(g, verts, 3);
}
}
//参考 FrocessingではじめるActionScriptドローイング 第4回 スケッチしてみよう
//http://gihyo.jp/design/feature/01/frocessing/0004?page=4
private function drawThickSprine(g:Graphics, verts:Vector.<Number>, thick:Number):void
{
var verts0:Vector.<Number> = new Vector.<Number>();
var verts1:Vector.<Number> = new Vector.<Number>();
var i:int;
var len:int = verts.length;
var vx:Number, vy:Number;
var pt:Point;
var px0:Number = verts[0];
var py0:Number = verts[1];
var px1:Number, py1:Number;
var drawPoint:DrawPoint;
for (i = 2; i + 1 < len; i += 2) {
px1 = verts[i];
py1 = verts[i + 1];
vx = px1 - px0;
vy = py1 - py0;
pt = new Point(vx, vy);
pt.normalize(1);
verts0.push(Math.floor(px0 + pt.y * thick));
verts0.push(Math.floor(py0 - pt.x * thick));
verts1.push(Math.floor(px0 - pt.y * thick));
verts1.push(Math.floor(py0 + pt.x * thick));
px0 = px1;
py0 = py1;
}
var dVerts0:Vector.<Number> = new Vector.<Number>();
var dVerts1:Vector.<Number> = new Vector.<Number>();
//初期値
dVerts0.push(0, 0, verts0[0], verts0[1], verts0[2], verts0[3], verts0[4], verts0[5]);
dVerts1.push(verts1[4], verts1[5], verts1[2], verts1[3], verts1[0], verts1[1], 0, 0);
//描画
len -= 2;
for (i = 6; i + 1 < len; i += 2) {
dVerts0.shift();
dVerts0.shift();
dVerts0.push(verts0[i], verts0[i + 1]);
dVerts1.unshift(verts1[i], verts1[i + 1]);
dVerts1.pop();
dVerts1.pop();
drawPoint = drawPoints[Math.floor(i / 2)];
g.beginFill(0xFFFEF1, drawPoint.timeFactor);
g.moveTo(dVerts0[2], dVerts0[3]);
splineTo(g, dVerts0, 3);
g.lineTo(dVerts1[2], dVerts1[3]);
splineTo(g, dVerts1, 3);
g.lineTo(dVerts0[2], dVerts0[3]);
g.endFill();
}
}
//参考 Catmull-Rom スプライン曲線
//http://l00oo.oo00l.com/blog/archives/264
//verts: (x0, y0, x1, y1, x2, y2, x3, y3)
private function splineTo(g:Graphics, verts:Vector.<Number>, numSegments:int):void
{
var i:int;
var len:int = verts.length;
var t:Number;
for (i = 0; i < numSegments; i++) {
t = (i + 1) / numSegments;
g.lineTo(
catmullRom(verts[0], verts[2], verts[4], verts[6], t),
catmullRom(verts[1], verts[3], verts[5], verts[7], t)
);
}
}
private function catmullRom(p0:Number, p1:Number, p2:Number, p3:Number, t:Number):Number
{
var v0:Number = (p2 - p0) * 0.5;
var v1:Number = (p3 - p1) * 0.5;
return (2 * p1 - 2 * p2 + v0 + v1) * t * t * t + ( -3 * p1 + 3 * p2 - 2 * v0 - v1) * t * t + v0 * t + p1;
}
//時間がきたら消去
public function updateDrawPoints():void
{
if (drawPoints.length < 1) {
return;
}
var drawPoint:DrawPoint = drawPoints[0];
while (drawPoint.nextPoint != null){
drawPoint.aliveTime--;
if (drawPoint.aliveTime < 1) {
drawPoints.shift();
}
updateDrawPoint(drawPoint);
drawPoint = drawPoint.nextPoint;
}
updateDrawPoint(drawPoint);
drawPoint.aliveTime--;
if (drawPoint.aliveTime < 1) {
drawPoints.shift();
}
}
//時間に応じてY軸回転
private function updateDrawPoint(drawPoint:DrawPoint):void
{
var mat:Matrix3D = new Matrix3D();
mat.appendRotation((1 - drawPoint.timeFactor) * 540, Vector3D.Y_AXIS);
mat.appendTranslation(-_dX, 0, 500);
mat.transformVectors(Vector.<Number>([drawPoint.x, drawPoint.y, drawPoint.z]), vout);
Utils3D.projectVectors(proj, vout, projverts, uvts);
drawPoint.drawX = projverts[0] + hsw;
drawPoint.drawY = projverts[1] + hsh;
}
private function mouseUpHD(e:MouseEvent):void
{
stage.removeEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHD);
}
private function mouseDownHD(e:MouseEvent):void
{
stage.addEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHD);
}
private function mouseMoveHD(e:MouseEvent = null):void
{
//制御点をあまりとりすぎないように間引く
moveCount++;
if (moveCount % 3 != 0) {
return;
}
moveCount = 0;
//領域を超えたら描画しない
if (stage.mouseX > stage.stageWidth || stage.mouseY > stage.stageHeight) {
return;
}
var drawPoint:DrawPoint = new DrawPoint(stage.mouseX -hsw, stage.mouseY -hsh);
if (drawPoints.length > 0) {
drawPoints[drawPoints.length - 1].nextPoint = drawPoint;
}
drawPoints.push(drawPoint);
}
}
import flash.display.Sprite;
class DrawPoint
{
public var x:Number;
public var y:Number;
public var z:Number;
public var aliveTime:int = 300;
public var nextPoint:DrawPoint;
public var drawX:Number;
public var drawY:Number;
public function get timeFactor():Number
{
return aliveTime / 300;
}
public function DrawPoint(x:Number, y:Number) {
this.x = x;
this.y = y;
this.z = 0;
}
}