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pedulum expression help
veloc = 6; amplitutde = 40; decay = 1.25; t = time; amplitude*Math.cos(veloc*t)/Math.exp(decay*t);
I’m relatively new to expressions so any guidance would be appreciated…
I’m using a slight modification of Dan Ebbert’s pendulum expression to have an image swing in on it’s axis and slowly decay to a stop.
I’m looking for help in making this expression start where the layer starts in the timeline. Currently it starts at the beginning of the comp no matter where my layer starts. Any suggestions?
Greg
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3 Replies
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Try changing the 4th line to this:
t = time – inPoint;
Dan
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Duh! Makes perfect sense. Thanks Dan!
Greg
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I am using the same wonderful expression, though having trouble assigning a start value, say ‘starting swinging from -110°, eventually resting at 0°. Any thoughts? thx in advance
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