Expression to Compare two effects “Color Control”

[Dan Ebberts]

Exactly equal? Something like this applied to Color Control 1 should work:

c = effect(“Color Control 2”)(“Color”);
if ((c[0] == value[0]) && (c[1] == value[1]) && (c[2] == value[2]))
[0,0,0,1]
else
value

Dan

[Tiago Cav]

Yes Dan, exactly equal.

YES! Work Perfect; Thank you!!! 🙂

[Tiago Cav]

(Updated)
One more thing;
I need to propose something more daring.
Could determine half range of the same color (such as all Red variations, for example), for all #seven colors (Red; Violet; Blue; Cyan; Green; Yellow; Orange)?

In other words,
a division between Light and Dark in each color separately.

If “Color Control 1” is a color, (Red for example), Dark Red; #cc0000 rgb(204, 0, 0)
and
“Color Control 2” is a variation of Dark Red; #990000 rgb(153, 0, 0)

“Color Control 1” = black; “Color Control 2” keep color.

Another condition which result is the same:
If “Color Control 1” is Light Red; #ff8080 rgb(255, 128, 128)
and
“Color Control 2” is a variation of Light Red; #ff4d4d rgb(255, 77, 77)

See example (Updated).jpg

And:
If “Color Control 1” is dark and the “Color Control 2” is light (or inverted) variation of the same color (which can be #seven colors), keep color in “Color Control 1” and in “Color Control 2”.

Thanks. I want to know, at least, if all this is possible.

[Tiago Cav]

I got some interesting results with an expression that I created rapidly using the color red. I could go on, but it would be a very complex work, and results might be satisfactory, however, I would find many problems because of having to combine the three color channels extensively for simple colors.

Just one more thing:

When you asked me about the color be exactly the same; this suggests that After Effects might make an mode recognize colors within its range where a non-accurate color could be considered the same (of the same family)?

Thanks.

// TEST RED COLOR

c = effect("Color Control 2")("Color")
if ((clamp(c[0]*2, 0,2) >1 && clamp((value[0]*2),0,2) >1) || (clamp(c[0]*2, 0,2) <1 && clamp((value[0]*2),0,2) <1))
[0,0,0,1]
else
value

[Dan Ebberts]

The reason I asked about being exactly equal is that == will only return true if the values are exactly the same. Otherwise, you would need to check for values within a certain range.

I don’t know if it would help, but you might want to switch your RGB colors into HSL color mode (using rgbToHsl()), where it would be (I assume) easier to check for reds, for example.

Dan

[Tiago Cav]

I understand, Good observation, HSL can be better for this.

Now that You taught me the base to work with colors, I can develop over that.

You’ve helped enough, thanks again.