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Oscillate to make lights run
I trying to make some lights blink like a marquee board. I created some lights in Invigorator Pro; an odd set and an even set. Both sets of lights fall on the sign and move in the same movement through the composition.
These files were rendered out and now sit in my compositon. I think what I need an expression to apply a glow that oscillates on one layer (call this odd bulbs) and one that runs counter in its oscillation (call this even bulbs), I’m just not sure of the expression I need to write.
Any ideas? Dan Ebberts help would be much appreciated. -
3 Replies
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Maybe something like this for one layer:
freq = 2; //oscillations per second
intensity = 1; // max glow intensity
intensity*(1 + Math.sin(freq*time*Math.PI*2))and like this for the other layer:
freq = 2; //oscillations per second
intensity = 1; // max glow intensity
intensity*(1 – Math.sin(freq*time*Math.PI*2))Dan
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Forgot to divide by two. Should be:
freq = 2; //oscillations per second
intensity = 1; // max glow intensity
intensity*(1 + Math.sin(freq*time*Math.PI*2))/2freq = 2; //oscillations per second
intensity = 1; // max glow intensity
intensity*(1 – Math.sin(freq*time*Math.PI*2))/2Dan
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Dan,
You are the best! Thanks so much!
Ken
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