RE: [Flashcoders] Perlin Noise / Displacement
This really helped - Thank you !
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Glen Pike
Sent: 30 September 2008 21:27
To: Flash Coders List
Subject: Re: [Flashcoders] Perlin Noise / Displacement
Hi,
I did a similar thing to generate fake clouds - in a monochrome
colour...
Just try generating your perlin noise as greyscale - like you are
doing. You should not need to do the displacement filter on it, but
with this you can do clouds, through to big chunky stuff. The trick
is to overlay your perlin noise on a background colour by setting the
blend mode to screen...
Then if you want you can adjust the brightness and contrast of your
bitmap, then finally, apply a threshold to it...
Something like below:
import flash.display.BitmapData;
import flash.geom.Point;
import flash.filters.*;
Stage.scaleMode=noScale;
// Perlin noise variables
var baseX :Number = Stage.width / 4;
var baseY :Number = Stage.height / 2;
var nOctaves :Number = 6;
var randomSeed :Number = Math.random()*82;
var bStitch :Boolean = false;
var bFractalNoise :Boolean = true;
var nChannels :Number = 1;
var bGreyScale :Boolean= true;
// Offset array for perlin function
var p1 = new Point(45, 34);
var p2 = new Point(50, 60);
var fltPt = new Point(0, 0);
var fltRect = new Rectangle(0, 0, Stage.width, Stage.height);
perlinOffset = new Array(p1, p2);
var bg:MovieClip = _root.createEmptyMovieClip(bg,
_root.getNextHighestDepth());
bg.beginFill(0xFF);//Set this to whatever colour you want your
chrome..
bg.lineTo(Stage.width, 0);
bg.lineTo(Stage.width, Stage.height);
bg.lineTo(0, Stage.height);
bg.lineTo(0, 0);
bg.endFill();
var holder:MovieClip = _root.createEmptyMovieClip(holder, 2);
//You have a background colour underneath your perlin noise, which
is white...
//holder.blendMode = screen;
var cloudint = setInterval(animClouds, 1000/24);
function animClouds() {
//change the values in the perlinOffset to animate each perlin layer
perlinOffset[0].y+=0.5;
perlinOffset[0].x+=1;
perlinOffset[1].x-=0.5;
perlinOffset[1].y-=0.25;
//apply perlin noise to our bitmapdata
bmp.perlinNoise(baseX, baseY, nOctaves, randomSeed, bStitch,
bFractalNoise, nChannels, bGreyScale, perlinOffset);
//
//Uncomment the following line to see the generated perlin noise
_root.holder.attachBitmap(bmp, 1, auto, true);
//Contrast
var cont = 3.4;
var contMtx:Array = Array(cont,0,0,0,128*(1-cont),
0,cont,0,0,128*(1-cont),
0,0,cont,0,128*(1-cont),
0,0,0,1,0);
//Brightness
var brght = -20;
var brghtMtx:Array = Array(1,0,0,0,brght,
0,1,0,0,brght ,
0,0,1,0,brght ,
0,0,0,1,0 );
var contFlt = new ColorMatrixFilter(contMtx);
var brghtFlt = new ColorMatrixFilter(brghtMtx);
//bmp.applyFilter(bmp, bmp.rectangle, fltPoint, contFlt);
//bmp.applyFilter(bmp, bmp.rectangle, fltPoint, brghtFlt);
//Harsh threshold filtering...
//bmp.threshold(bmp,bmp.rectangle,new Point(0,
0),,0x006f6f6f,0x,0x00FF);
function animClouds() {
//change the values in the perlinOffset to animate each perlin layer
perlinOffset[0].y+=0.5;
perlinOffset[0].x+=1;
perlinOffset[1].x-=0.5;
perlinOffset[1].y-=0.25;
//apply perlin noise to our bitmapdata
bmp.perlinNoise(baseX, baseY, nOctaves, randomSeed, bStitch,
bFractalNoise, nChannels, bGreyScale, perlinOffset);
//
//Uncomment the following line to see the generated perlin noise
_root.holder.attachBitmap(bmp, 1, auto, true);
//Contrast
var cont = 3.4;
var contMtx:Array = Array(cont,0,0,0,128*(1-cont),
0,cont,0,0,128*(1-cont),
0,0,cont,0,128*(1-cont),
0,0,0,1,0);
//Brightness
var brght = -20;
var brghtMtx:Array = Array(1,0,0,0,brght,
0,1,0,0,brght ,
0,0,1,0,brght ,
0,0,0,1,0 );
var contFlt = new ColorMatrixFilter(contMtx);
var brghtFlt = new ColorMatrixFilter(brghtMtx);
//bmp.applyFilter(bmp, bmp.rectangle, fltPoint, contFlt);
//bmp.applyFilter(bmp, bmp.rectangle, fltPoint, brghtFlt);
//Harsh threshold filtering...
//bmp.threshold(bmp,bmp.rectangle,new Point(0,
0),,0x006f6f6f,0x,0x00FF);
}
Karim Beyrouti wrote:
Hello groovy list...
I am trying to generate a chrome effect by applying a displacement map to
Bitmap.
The Displacement map is
RE: [Flashcoders] Can URLLoader Open New Window Like LoadVars?
Not 100% sure, but you may run into problems with pop-up blocking. I believe popup blockers are only sniffing windows spawned by Javascript, and not by direct user-requests, so using _blank should be fine. Jason Merrill Bank of America GCIB Staff Support LLD Instructional Technology Media Join the Bank of America Flash Platform Developer Community Are you a Bank of America associate interested in innovative learning ideas and technologies? Check out our internal Innovative Learning Blog subscribe. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Glen Pike Sent: Tuesday, September 30, 2008 5:44 PM To: Flash Coders List Subject: Re: [Flashcoders] Can URLLoader Open New Window Like LoadVars? Hi, I posted an answer to this yesterday - use navigateToURL http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/net/package.html#navigateToURL() With a URLRequest having the method variable set to POST and the window set to _blank Not 100% sure, but you may run into problems with pop-up blocking. HTH Glen Elia Morling wrote: Any ideas? thanks - Original Message - From: Elia Morling [EMAIL PROTECTED] To: Flash Coders List flashcoders@chattyfig.figleaf.com Sent: Monday, September 29, 2008 12:32 AM Subject: [Flashcoders] Can URLLoader Open New Window Like LoadVars? The LoadVars could specify a target to open a new window in AS2... Can we open a new window with URLLoader while making a POST operation? Thanks Elia ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders -- Glen Pike 01326 218440 www.glenpike.co.uk http://www.glenpike.co.uk ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
[Flashcoders] Increase Recursion Level?
Is there an actionscript command that can increase the recursion level within a flash movie? I have a legitimate method that calls itself and may exceed the 256 recursion limitiation. Or, is it just best not to use recursion in Flash? Thanks, Doug ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
RE: [Flashcoders] Increase Recursion Level?
I think recursion limits are set at the Flash player level, but not at the published .swf level, so even if you could increase it (I don't think you can), the end user could not change it. I could be wrong. I don't know if it's necessarily a huge no-no, but I would say it would be recommended to avoid recursion as much as possible - puts a ton of strain on the processor and the player. What are you using recursion for? Jason Merrill Bank of America GCIB Staff Support LLD Instructional Technology Media Join the Bank of America Flash Platform Developer Community Are you a Bank of America associate interested in innovative learning ideas and technologies? Check out our internal Innovative Learning Blog subscribe. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Doug Coning Sent: Wednesday, October 01, 2008 1:59 PM To: Flash Coders List Subject: [Flashcoders] Increase Recursion Level? Is there an actionscript command that can increase the recursion level within a flash movie? I have a legitimate method that calls itself and may exceed the 256 recursion limitiation. Or, is it just best not to use recursion in Flash? Thanks, Doug ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] Increase Recursion Level?
I think that in player 9 it changed from 256 levels of recursion to 15s of processing, not sure though. Anyway, when I genuinely needed that level of recursion, I divided it in cycles (or frames) in order to work. Leandro Ferreira On Wed, Oct 1, 2008 at 3:21 PM, Merrill, Jason [EMAIL PROTECTED] wrote: I think recursion limits are set at the Flash player level, but not at the published .swf level, so even if you could increase it (I don't think you can), the end user could not change it. I could be wrong. I don't know if it's necessarily a huge no-no, but I would say it would be recommended to avoid recursion as much as possible - puts a ton of strain on the processor and the player. What are you using recursion for? Jason Merrill Bank of America GCIB Staff Support LLD Instructional Technology Media Join the Bank of America Flash Platform Developer Community Are you a Bank of America associate interested in innovative learning ideas and technologies? Check out our internal Innovative Learning Blog subscribe. -Original Message- From: [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] On Behalf Of Doug Coning Sent: Wednesday, October 01, 2008 1:59 PM To: Flash Coders List Subject: [Flashcoders] Increase Recursion Level? Is there an actionscript command that can increase the recursion level within a flash movie? I have a legitimate method that calls itself and may exceed the 256 recursion limitiation. Or, is it just best not to use recursion in Flash? Thanks, Doug ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
RE: [Flashcoders] Increase Recursion Level?
Yeah, I found a parameter you could pass into the SWF file that would change the recursion level, but wanted to see if I could do it programmatically through AS. I was using recursion to load assets into a swf. I have an array of assets that needed to be loaded into a SWF file. I've set up a function that would pop an element off the load array and then load the asset. Upon completion of the load, it would call the function again if the load array's length 0. I will change my code to use an onEnterFrame event instead to invoke the calls one at a time... Thanks, Doug -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Merrill, Jason Sent: Wednesday, October 01, 2008 2:22 PM To: Flash Coders List Subject: RE: [Flashcoders] Increase Recursion Level? I think recursion limits are set at the Flash player level, but not at the published .swf level, so even if you could increase it (I don't think you can), the end user could not change it. I could be wrong. I don't know if it's necessarily a huge no-no, but I would say it would be recommended to avoid recursion as much as possible - puts a ton of strain on the processor and the player. What are you using recursion for? Jason Merrill Bank of America GCIB Staff Support LLD Instructional Technology Media Join the Bank of America Flash Platform Developer Community Are you a Bank of America associate interested in innovative learning ideas and technologies? Check out our internal Innovative Learning Blog subscribe. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Doug Coning Sent: Wednesday, October 01, 2008 1:59 PM To: Flash Coders List Subject: [Flashcoders] Increase Recursion Level? Is there an actionscript command that can increase the recursion level within a flash movie? I have a legitimate method that calls itself and may exceed the 256 recursion limitiation. Or, is it just best not to use recursion in Flash? Thanks, Doug ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
