BitmapFireEffect.as

リビジョン 3288, 8.3 kB (コミッタ: rokubou, コミット時期: 3 年前)
Add Papervison3D.

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1	/**
2	* ...
3	* @author Default
4	* @version 0.1
5	*/
6
7	package org.papervision3d.core.effects {
8	import org.papervision3d.view.layer.BitmapEffectLayer;
9
10	import flash.display.BitmapData;
11	import flash.display.DisplayObject;
12	import flash.filters.BlurFilter;
13	import flash.filters.ColorMatrixFilter;
14	import flash.filters.DisplacementMapFilter;
15	import flash.geom.ColorTransform;
16	import flash.geom.Matrix;
17	import flash.geom.Point;
18
19	public class BitmapFireEffect extends AbstractEffect{
20
21	private var layer:BitmapEffectLayer;
22	private var _fadeRate:Number=0.4;
23	private var _distortionScale:Number=0.4;
24	private var _distortion:Number=0.5;
25	private var _flameHeight:Number=0.3;
26	private var _flameSpread:Number=0.3;
27	private var _blueFlame:Boolean = false;
28	private var _smoke:Number = 0;
29
30	// private properties:
31	// display elements:
32	private var displayBmp:BitmapData;
33	private var scratchBmp:BitmapData;
34	private var perlinBmp:BitmapData;
35
36	// geom:
37	private var mtx:Matrix;
38	private var pnt:Point;
39	private var drawColorTransform:ColorTransform;
40
41	// filters:
42	private var fireCMF:ColorMatrixFilter;
43	private var dispMapF:DisplacementMapFilter;
44	private var blurF:BlurFilter;
45
46	// other
47	private var endCount:Number;
48	private var bmpsValid:Boolean=false;
49	private var perlinValid:Boolean=false;
50	private var filtersValid:Boolean=false;
51	private var _target:DisplayObject;
52
53
54	public function BitmapFireEffect(r:Number = 1, g:Number = 1, b:Number = 1, a:Number= 1){
55
56
57	mtx = new Matrix();
58	pnt = new Point();
59
60	}
61
62
63	public override function attachEffect(layer:BitmapEffectLayer):void{
64
65	this.layer = BitmapEffectLayer(layer);
66	target = layer.drawLayer;
67
68	}
69
70	public override function postRender():void{
71
72	doFire();
73	//layer.canvas.applyFilter(layer.canvas, layer.canvas.rect, new Point(), fade);
74
75	}
76
77
78	public function set width(value:Number):void {
79	//layer.canvas.width;
80	}
81	public function get width():Number {
82	return layer.canvas.width;
83	}
84
85	public function set height(value:Number):void {
86	;
87	}
88	public function get height():Number {
89	return layer.canvas.height;
90	}
91
92
93	[Inspectable(defaultValue=0.4,name='fadeRate (0-1)')]
94	/**
95	* Sets the rate that flames fade as they move up. 0 is slowest, 1 is fastest.
96	*
97	* @default 0.4
98	*/
99	public function set fadeRate(value:Number):void {
100	filtersValid &&= (value == _fadeRate);
101	_fadeRate = value;
102	}
103	public function get fadeRate():Number {
104	return _fadeRate;
105	}
106
107	[Inspectable(defaultValue=0.4,name='distortionScale (0-1)')]
108	/**
109	* Sets the scale of flame distortion. 0.1 is tiny and chaotic, 1 is large and smooth.
110	*
111	* @default 0.4
112	*/
113	public function set distortionScale(value:Number):void {
114	perlinValid &&= (value == _distortionScale);
115	_distortionScale = value;
116	}
117	public function get distortionScale():Number {
118	return _distortionScale;
119	}
120
121	[Inspectable(defaultValue=0.4,name='distortion (0-1)')]
122	/**
123	* Sets the amount of distortion. 0.1 is little, 1 is chaotic.
124	*
125	* @default 0.4
126	*/
127	public function set distortion(value:Number):void {
128	filtersValid &&= (value == _fadeRate);
129	_distortion = value;
130	}
131	public function get distortion():Number {
132	return _distortion;
133	}
134
135	[Inspectable(defaultValue=0.3,name='flameHeight (0-1)')]
136	/**
137	* Sets the how high the flame will burn. 0 is zero gravity, 1 is a bonfire.
138	*
139	* @default 0.3
140	*/
141	public function set flameHeight(value:Number):void {
142	perlinValid &&= (value == _flameHeight);
143	_flameHeight = value;
144	}
145	public function get flameHeight():Number {
146	return _flameHeight;
147	}
148
149	[Inspectable(defaultValue=0.3,name='flameSpread (0-1)')]
150	/**
151	* Sets the how much the fire will spread out around the target. 0 is no spread, 1 is a lot.
152	*
153	* @default 0.3
154	*/
155	public function set flameSpread(value:Number):void {
156	filtersValid &&= (value == _flameSpread);
157	_flameSpread = value;
158	}
159	public function get flameSpread():Number {
160	return _flameSpread;
161	}
162
163	[Inspectable(defaultValue=false,name='blueFlame')]
164	/**
165	* Indicates whether it should use a blue or red flame.
166	*
167	* @default false
168	*/
169	public function set blueFlame(value:Boolean):void {
170	filtersValid &&= (value == _blueFlame);
171	_blueFlame = value;
172	}
173	public function get blueFlame():Boolean {
174	return _blueFlame;
175	}
176
177	[Inspectable(defaultValue=0,name='smoke (0-1)')]
178	/**
179	* Sets the amount of smoke. 0 little, 1 lots.
180	*
181	* @default 0
182	*/
183	public function set smoke(value:Number):void {
184	filtersValid &&= (value == _smoke);
185	_smoke = value;
186	}
187	public function get smoke():Number {
188	return _smoke;
189	}
190
191
192	[Inspectable(defaultValue='',name='target')]
193	/**
194	* Sets the amount of smoke. 0 little, 1 lots.
195	*
196	* @default
197	*/
198	public function set targetName(value:String):void {
199
200	}
201
202	/**
203	* Defines the shape of the fire. The fire will burn upwards, so it should be near the bottom, and centered in the FireFX component.
204	*
205	* @default
206	*/
207	public function set target(value:DisplayObject):void {
208	_target = value;
209	clear();
210	}
211	public function get target():DisplayObject {
212	return _target;
213	}
214
215	/**
216	* Clears the fire.
217	*/
218	public function clear():void {
219	if (displayBmp) {
220	displayBmp.fillRect(displayBmp.rect,0);
221	}
222	}
223
224
225
226	public function stopFire():void {
227	// let the fire burn down for 20 frames:
228	if (endCount == 0) { endCount = 20; }
229	}
230
231
232	private function updateBitmaps():void {
233	if (displayBmp) {
234	displayBmp.dispose();
235	displayBmp = null;
236	scratchBmp.dispose();
237	scratchBmp = null;
238	perlinBmp.dispose();
239	perlinBmp = null;
240	}
241
242	displayBmp = layer.canvas;
243	scratchBmp = displayBmp.clone();
244	perlinBmp = new BitmapData(width3, height3, false, 0);
245
246
247	updatePerlin();
248	updateFilters();
249	bmpsValid = true;
250	}
251
252	private function updatePerlin():void {
253	perlinBmp.perlinNoise(30_distortionScale,20_distortionScale,1,-Math.random()*1000\|0,false,true,1\|2,false);
254	perlinBmp.colorTransform(perlinBmp.rect,new ColorTransform(1, 1-_flameHeight*0.5 ,1,1,0,0,0,0));
255	perlinValid = true;
256	}
257
258	private function updateFilters():void {
259	if (_blueFlame) {
260	fireCMF = new ColorMatrixFilter([0.8-0.55*_fadeRate,0,0,0,0,
261	0,0.93-0.48*_fadeRate,0,0,0,
262	0,0.1,0.96-0.35*_fadeRate,0,0,
263	0,0.1,0,1,-25+_smoke*24]);
264	drawColorTransform = new ColorTransform(0,0,0,1,210,240,255,0);
265	} else {
266	fireCMF = new ColorMatrixFilter([0.96-0.35*_fadeRate,0.1,0,0,-1,
267	0,0.9-0.45*_fadeRate,0,0,0,
268	0,0,0.8-0.55*_fadeRate,0,0,
269	0,0.1,0,1,-25+_smoke*24]);
270	drawColorTransform = new ColorTransform(0,0,0,1,255,255,210,0);
271	}
272	dispMapF = new DisplacementMapFilter(perlinBmp,pnt,1,2,14*_distortion,-30,"clamp");
273	blurF = new BlurFilter(32_flameSpread,32_flameSpread,1);
274
275	filtersValid = true;
276	}
277
278
279
280	private function startFire():void {
281	endCount = 0;
282
283	}
284
285	private function doFire():void {
286	if (_target == null) { return; }
287	if (!bmpsValid) { updateBitmaps(); }
288	if (!perlinValid) { updatePerlin(); }
289	if (!filtersValid) { updateFilters(); }
290	if (endCount == 0) {
291	var drawMtx:Matrix = _target.transform.matrix;
292
293	scratchBmp.fillRect(scratchBmp.rect,0);
294	drawColorTransform.alphaOffset = -Math.random()*200\|0;
295	scratchBmp.draw(_target,drawMtx,drawColorTransform,"add");
296	scratchBmp.applyFilter(scratchBmp,scratchBmp.rect,pnt,blurF);
297	displayBmp.draw(scratchBmp,mtx,null,"add");
298	}
299	dispMapF.mapPoint = new Point( -Math.random()(perlinBmp.width-displayBmp.width)\|0, -Math.random()(perlinBmp.height-displayBmp.height)\|0 );
300	displayBmp.applyFilter(displayBmp,displayBmp.rect,pnt,dispMapF);
301	displayBmp.applyFilter(displayBmp,displayBmp.rect,pnt,fireCMF);
302
303	//if (endCount != 0 && --endCount == 0) {
304	// removeEventListener(Event.ENTER_FRAME,doFire);
305	}
306	}
307
308
309	}
310
311

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root/as3/FLARToolKit/trunk/libs/Papervision3D/src/org/papervision3d/core/effects/BitmapFireEffect.as

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