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J
Januka bhusal
Participant
February 14, 2024
Question

How to change colour of each repeator copies?

  • February 14, 2024
  • 2 replies
  • 1891 views
  1. Hello, i need a little help.  i created a layer with circle. i have added a repeator with 8 copies. i want those 8 circles to have alternate colour. like, 1st circle should have yellow colour , second circle should have green colour and again third circle should have the yellow colour like 1st one , again 4th circle should have green colour like 2nd circle one and go on same for remaining circle. how can i do that ? I tried using expression from chatgpt but it didn't help😫
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    2 replies

    A
    Airweb_AE
    Legend
    February 15, 2024

    Maybe you can deal with this:

    - create a null with 4 slider controls (num of circles, dist from null, size, offset time)

    - create 1 circle parented to the null and add these expressions

     

    Position Expression:

    idx = parent.index - index - 1;
noc = parent.effect("num of circles")(1);
offset = parent.effect("offset time")(1);
radius = parent.effect("dist from null")(1).valueAtTime(time - offset * idx);
angle = 360 / noc;
x = Math.cos(degreesToRadians(angle) * idx) * radius;
y = Math.sin(degreesToRadians(angle) * idx) * radius;
[x, y]

     

    Size Expression:

    idx = parent.index - index - 1;
offset = parent.effect("offset time")(1);
s = parent.effect("size")(1).valueAtTime(time - offset * idx);
[s, s]

     

    R
    Community Expert
    Rick GerardCommunity Expert
    Community Expert
    February 14, 2024

    Repeaters only work on the path (shape). You need four different colored ellipses (circles) and four repeaters. They can all be on the same layer.After you create your first ellipse, position it, and add the first repeater, select the path, duplicate it, then adjust the Ellipse Path 1/postion and change the fill color. Repeat that 3 times and you have got it. If you want to repeat the stack of four repeated shapes, group the shapes and add another repeater. The workflow looks like this:

     

    J
    Januka bhusalAuthor
    Participant
    February 15, 2024
    • Hi Rick, thank you for this guidance but i am making it in a round shape animation for my company logo design so this method may not give a smooth animation like this. Please let me know if there is any other method where i can achieve two different colors for this animation like the photo i have attached 
    R
    Community Expert
    Rick GerardCommunity Expert
    Community Expert
    February 15, 2024
    I have photoshop file , I don’t have illustrator file. Does adding
    expression help to get that alteration color?

    There are all kinds of ways to manipulate color. The same basic workflow applies. Every object you want to animate (every circle) individually must be on a separate layer, imported as a composition retaining layer size, then set up your animation and color changes. Expressions can help.  

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