[Golist] HydroTween Color Matrix solutions

[Shane Colella]

Ah ha, as i just tried reset and it didnt work...
Thanks donavan...
Hydro rocks....


-------------------------------------
----------------------- 
Shane Michael Colella | Director
Qorvis Communications
571-271-3453 mobile
703-744-7806 phone
703-744-7840 fax
scolella at qorvis.com


----- Original Message -----
From: golist-bounces at goasap.org <golist-bounces at goasap.org>
To: Mailing list for the Go ActionScript Animation Platform <golist at goasap.org>
Sent: Fri Aug 08 17:59:42 2008
Subject: Re: [Golist] HydroTween Color Matrix solutions

Reset to the original color using HydroTween.IDENTITY in the latest version.

This will remove ANY CM tweens you have running on an Object.






Also if you ran a couple CM tweens on an item and you want to tween to just one CM prop you can do...

HydroTween.go(this, {contrast:1, saturation:1}, 1, 0, Quartic.easeOut);
HydroTween.go(this, {color:0xFF0000}, 1, 0, Quartic.easeOut);
HydroTween.go(this, {contrast:1, saturation:HydroTween.IDENTITY}, 1, 0, Quartic.easeOut);

This will reset the object color to it’s original state then apply the contrast adjustment so you wind up tweening to the contrast value from whatever the modified CM values have become.  Make sure you put the IDENTITY const last in the list of props! This is a hack trick that takes advantage the a loop of objects runs in reverse so the resetting takes place first, then the adjustments to the ColorMatrixFilter happen after.






On 8/8/08 4:00 PM, "Shane Colella" <scolella at qorvis.com> wrote:



	Greetings everyone,
	 
	            I’m currently working on a photo gallery which I have a line of pics that display one after another.  I’m sliding the line around depending on which pic has been selected.  The transitions are where I’m running into difficulty.  I’m using HydroTween to de-saturate and then saturate the images, with the following code:
	 
	            public function set inColor(bool:Boolean):void{
	                                                
	                                                if(bool!=_inColor || !_setColor){
	                                                            trace("\n\t -- set color : "+_index);
	                                                            _inColor = bool;
	                                                            _setColor = true;
	                                                            if(_inColor){ //--add color
	                                                                        HydroTween.go(this, { saturation:2.8}, 1, 0, Quartic.easeOut);
	                                                            }else{ //--remove color
	                                                                        HydroTween.go(this, { saturation:-0.9}, 1, 0, Quartic.easeOut);
	                                                            }
	                                                }
	                                    }
	 
	What’s interesting is the numbers I’ve had to use to get it to “kinda” work.  I realize that the colorMatrix is involved so technically we are adding filters one after another, which eventually, if I keep going back and forth, completely de-saturates the images.
	My question: 
	Is there a clean way anyone has used to “reset” the filters so I’m not cumulatively adding filters onto my pics.  Basically, I want to be able to just set saturation to 1, and let it display normal, and set it to -1 to de-saturate, but that’s not working at all.  
	 
	Any thoughts from the team?
	 
	I decided to post here feeling this may be a pretty common problem with the colorMatrix side of HydroTween if one is just trying to go back and forth from the same effect, in this case saturation…
	 
	Thanks
	 
	 
	 
	 
	Shane Michael Colella
	
	
	
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