Color Change Over Time?

[Walter Soyka]

What are you coloring? How are they set up? What exactly do you want them to do?

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive   |   RenderBreak [blog]   |   Profile [LinkedIn]

[Joe Clay]

You can try an expression like this:
hue = 0;
sat = 1;
light = .5;
hsla = [hue,sat,light,1];
hsla = hsla + [((time/thisComp.frameDuration)%360)/360,0,0];
hslToRgb(hsla);

But that’s not the best way because it’s not easy to control or predict, but it’ll cycle through the hues. It’d be easier to use an effect that has a cycling type of property and put a time expression on that property like:

time*12

You could use the hue/sat effect to get something similar to the above expression. But the best way, if you’re looking to get specific hues is to use the old school Colorama effect. You can change the output cycle to use just the colors you’re looking for, and then you can put a time expression, like the one above, on the “Phase Shift” property. I hope that’s what you’re after!

Joe Clay
Workbench.tv

[Daniel Waldron]

I agree with Joe. I think a simple (time*x) expression on whatever color parameter you are using will do the trick.