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time expression with 60fps – unexpected results
I tried to use Dan Ebbert’s script below to hold a position of a layer for 12 seconds. Unfortunately I’m working with 60fps and the script doesn’t work as it should. It holds the position for more than 12 seconds.
I haven’t fully grasped what the “time” function actually delivers. Especially with higher frame rates. Any help is much appreciated.
holdTime = 12; //time to hold each position (seconds)
seed = Math.floor(time/holdTime);
seedRandom(seed,true);
random([thisComp.width, thisComp.height])
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5 Replies
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time is in seconds and is independent of the frame rate. The expression works fine for me at 60 fps. Do you have time remapping in the mix somewhere?
Dan
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Thank you Dan for helping me out!
There’s no time remapping in there.
I’ve randomised an ellipse with turbulent displace and rotation.
Scale has looping keyframes from 00:00:00 to 00:12:00 (also tried 00:11:59)
and the repositioning always happens after 12sec and it’s multiples. -
I tried it in a clean comp with a simple circle and it jumps at
00:12:24
00:24:24
it always switches 24 frames after the given second.
If I use 11 seconds as hold time it jumps at
00:11:24
00:22:24so it’s as if I’m missing something in the overall comp settings or preferences then?
holdTime = 12; //time to hold each position (seconds)
seed = Math.floor(time/holdTime);
seedRandom(seed,true);
random([thisComp.width, thisComp.height])
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Does the layer start at comp time = 0? If not, you might want to try it this way:
holdTime = 12; //time to hold each position (seconds)
seed = Math.floor((time-inPoint)/holdTime);
seedRandom(seed,true);
random([thisComp.width, thisComp.height])Dan
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Oh man, I guess I’m just totally overworked. I can’t see the simplest things today….
Yes that’s it and the script works like a charm like that.
Thanks a million!
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