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Repeat Y position animation with hold
Hi,
I’ve been struggling with this expression for a while (nothing new to me…), I’ve seen a post on here from a while ago which may produce the same or a similar result but I can’t seem to get it to work for me (at all…). (https://forums.creativecow.net/thread/227/15017).
What I’m trying to figure out is how I would express animating the Y position of a 400 line text layer to nudge up into a window (track matted) to show only the first line of text (10 key frames), hold for 15 keys, and then to repeat Y movement by nudging the text up to reveal the 2nd line of text. this cycle would repeat in 1 sec (25 frame) intervals to eventually display ever line of text.
If anyone has a solution for this I would be very greatful!
Thank you,
Matt.
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3 Replies
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It’s probably going to look something like this:
f = timeToFrames(time);
line = Math.floor(f/25);
pix = Math.min(f%25,10);
value – [0, line*10+pix]Dan
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Dan, your a life saver!!! this expression is exactly what I need. Thank you so much!
In order to use it perfectly in my comp order I’ve made the following updates:
f = timeToFrames(time);
line = Math.floor(f/25);
pix = Math.min(f%25,10);
value – [0, 6.4*((line-5)*10+pix),0]I’ve multiplied Y in the array by 6.4 to increse the line spacing per movement.
I’ve added Z to the array for functionality as a 3D layer.
I’ve subtracted 5 from the line variable to delay the initial 1st position. I could have just shifted down the text but I have a 5 sec animation of the text which links up with this 1st postion, so the 1st 5 secs of the expression layer are hidden.
This is all working fantastic for me and I’m very grateful for your assistance.
Thank you!
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Hey guys,
real great job on that expression, I’ve been looking for something like this for hours! Is there any way to ease the movement created?Thanks!!!
edit:
eased it:
f = timeToFrames(time);
line = Math.floor(f/25);
pix = Math.min(f%25,10);
pixe = ease(pix, 0, 10, 0, 100);
value - [0, (line*100+pixe)-time]
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