Opacity Sine Rhythm

[Dan Ebberts]

This should get you started:

freq = 1; // 1 cycle per second
50*(1 – Math.cos(freq*time*Math.PI*2))

Dan

[Navarro Parker]

Hey Dan,

Would there be a way to get it to hang a smidge more at the peak and valley of the sine wave?

It’s because of my transfer modes and contrast of the image, it’s not looking as graceful as I want. Looks somewhere between linear interpolation and sine.

[Dan Ebberts]

You could add an ease to it like this:

freq = 1; // 1 cycle per second
val = 50*(1 – Math.cos(freq*time*Math.PI*2));
ease(val,0,100,0,100)

Dan

[Navarro Parker]

Great idea using Ease! Thanks Dan!