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ANOTHER scrolling credits question
Ok, so i built this rolling credits for a project several months back. some names got added, so the “roll” is longer, but they need it to fit in the same time span. i cant figure out how to adjust the expression/layer to CHANGE THE END POINT. here is the expression i am using. i tried bumping the 4 to 4.5 but it doesnt like fractions, and 5 is too much. thanks in advance
rate = 4.; //value in px/sec.
if (marker.numKeys > 0){
if (time > marker.key(1).time){
value - [0,rate*timeToFrames(time-marker.key(1).time)];
}else{
value;
}
}else{
value - [0,rate*timeToFrames(time-inPoint)];
} -
5 Replies
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What do you mean by “it doesn’t like fractions”?
4.5 should work.Dan
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anything other than a whole number gives me an error:
after effects warning: bad digit in number expression disabled
error occured at line 1.
comp: CC_CREDIT_ROLL’
Layer: 6 (‘CC_Credit_Roll_P2.ai)
property: position -
This works for me:
rate = 4.5; //value in px/sec.
if (marker.numKeys > 0){
if (time > marker.key(1).time){
value - [0,rate*timeToFrames(time-marker.key(1).time)];
}else{
value;
}
}else{
value - [0,rate*timeToFrames(time-inPoint)];
}
Are you doing it a different way?
Dan
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of course it was user error. i had an extra period after the 4, so it was reading 4.5. thanks.
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I think that expression was intended to keep whole pixel movement per frame, thus preventing the ‘wavy’ text edges that will otherwise happen due to antialiasing…
You might be better off scaling the text slightly to allow it to fit the duration at 4 px/frame.
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW
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