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How to start expression at layer in point instead of comp start
Hi there. I’m a scripting newbie. I’m using decaying pendulum motion that starts as each layer “pops into the world”. The problem is the expression (which I borrowed from Dan) starts its math at the start of the comp instead of at the in point of the layer, so that as each successive layer appears in time, the motion is already decayed (not what I want).
Is there a way to do this without having to nest the layer? and put the expression in there? Thank you!
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2 Replies
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Give this a try:
freq = 1.0; //oscillations per second
amplitude = 50;
decay = .7;t = Math.max(time – inPoint, 0);
amplitude*Math.sin(freq*t*2*Math.PI)/Math.exp(decay*t)Dan
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Ah, an “inPoint”, thank you, Dan!!
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