Solved

actionscript: change hue

Posted on 2004-04-12
3
1,586 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 9

Accepted Solution

by:
krishnaprathab earned 125 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

Instantly Create Instructional Tutorials

Contextual Guidance at the moment of need helps your employees adopt to new software or processes instantly. Boost knowledge retention and employee engagement step-by-step with one easy solution.

Question has a verified solution.

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

This is a very simple example to help those of you who are still migrating from AS2 to AS3 understand the redesigned event model in AS3. In AS2.0, event functions (that is, the function to be performed when an event is fired) were stored as a pro…
Recently, I was asked to recommend a tracking system to be implemented on a clients website. As the entire site was built on flash, my first thought was to suggest custom built tracking system. However, our company at that point of time didn't h…
The goal of the tutorial is to teach the user how to set there setting in Adobe Flash Media Live Encoder and YouTube for optimal video and audio quality.
The goal of the tutorial is to teach the user how to select which audio input to use. Once you have an audio input plugged into the laptop or computer, you will go into the audio input settings and choose which audio input you want to use.

617 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