?
Solved

actionscript: change hue

Posted on 2004-04-12
3
Medium Priority
?
1,593 Views
Last Modified: 2008-09-22
I would like to know if there is a function to change the hue of a movie clip on the fly.
0
Comment
Question by:AZAKA
1 Comment
 
LVL 9

Accepted Solution

by:
krishnaprathab earned 500 total points
ID: 10833891
Hi,

 There is no way by which you can change the hue of the MovieClip on the fly. Unless you write a custom (and ofcourse complex function) which can manipulate the colors and do for you. As far as my knowldge there is no function which does this.

The closest which I was able to find for you was this code at actionscript.org :


//this function acts on normalized values for hue,luminosity,saturation
//numbers between 0-1
hls2rgb=function(h,l,s){
      var r,g,b
      if(!s){
              r=g=b=l
      }else{
            var t1,t2,rt3,gt3,bt3
              if(l<0.5) t2=l*(1.0+s)

              if(l>=0.5){
                  t2=l+s-l*s
                  t1 = (2*l)-t2
            }
            rt3=h+1/3
            if(rt3<0)rt3++
            if(rt3>1)rt3--
            gt3=h
              if(gt3<0)gt3++
              if(gt3>1)gt3--
              bt3=h-1/3
              if(bt3<0)bt3++
              if(bt3>1)bt3--
             if(6*rt3<1){
                  r=t1+(t2-t1)*6.0*rt3
            }else if(2*rt3<1){
                  r=t2
              }else if(3*rt3<2){
                  r=t1+(t2-t1)*((2.0/3.0)-rt3)*6
              }else{
                     r=t1
              }
            if(6*gt3<1){
                  g=t1+(t2-t1)*6.0*gt3
            }else if(2*gt3<1){
                  g=t2
            }else if(3*gt3<2){
                  g=t1+(t2-t1)*((2.0/3.0)-gt3)*6
            }else{
                  g=t1
            }
            if(6*bt3<1){
                  b=t1+(t2-t1)*6.0*bt3
            }else if(2*bt3<1){
                  b=t2
            }else if(3*bt3<2){
                  b=t1+(t2-t1)*((2.0/3.0)-bt3)*6
            }else{
                  b=t1
            }  
      }
      return {r:r,g:g,b:b}
}


/*test it out
hue=90 // 0-360 degrees
luminosity=50 //0-100 percent
saturation=50 //0-100 percent

rgb=hls2rgb(hue,luminosity/100,saturation/100)
r=rgb.r*255 //convert back to range
g=rgb.g*255 //convert back to range
b=rgb.b*255 //convert back to range
hex=r<<16|g<<8|b //convert to hex for use with color object*/
 
Let me know if this helped !

Thanks,
KP
0

Featured Post

Hire Technology Freelancers with Gigs

Work with freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely, and get projects done right.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

There are times in your Flash CS4 application when you want more than a simple pointer or a hand, and it's hard to find an ideal walk-through to tell you what to do.  I spent a few days recently learning my way around making custom cursors in Flash,…
In my long career of working as an actionscript developer, I had spent sleepless night often working hard to solve some small problems which actually took a lot of my development time; later found out the solutions to be a line or two. Here are s…
The goal of the tutorial is to teach the user how to how to load their YouTube profile onto Flash Media Live Encoder.
The goal of the tutorial is to teach the user how to how to record live broadcast.
Suggested Courses
Course of the Month4 days, 15 hours left to enroll

601 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question