Improve company productivity with a Business Account.Sign Up

x
?
Solved

actionscript: change hue

Posted on 2004-04-12
3
Medium Priority
?
1,595 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

Keep up with what's happening at Experts Exchange!

Sign up to receive Decoded, a new monthly digest with product updates, feature release info, continuing education opportunities, and more.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

This article describes a solution to a problem of subloading one movie into another when they have different SWF versions. Sometime back, I was working on an ActionScript project while I came across an interesting fact which I would like to share…
While working over numerous projects I often had the requirement for doing a screen capture in AS3.0. Unfortunately I found no "ready made" solutions in google search that suited my requirements. But I did come across some great resources which help…
In this tutorial viewers will learn how to create a basic motion tween animation in Flash Open a new document in Flash: Draw/import an image: Press CTRL + F8 to convert it into a graphic symbol: Select a frame (how long you want the tween to last): …
The goal of the tutorial is to teach the user how to live broadcast using Flash Media Live Encoder and connecting it to YouTube to broadcast. Log into your Youtube account, choose live stream settings, start live stream from Flash Media Live Enc…

607 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