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Text: make “start” value change over “text length” frames
I use a lot the “typewriter” effect in AE and, as a personal standard, when setting the distance between the 2 keyframes that make the “start” property go from 0% to 100%, I simply count the characters in the word and apply this quantity manually, in frames, so that the letters appear 1/frame.
I was wondering… Is there a way to use an expression to make this property go from 0% to 100% across a number os frames equal to the text length?
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4 Replies
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Assuming you leave Units set to Percentage, something like this should work:
n = text.sourceText.value.length;
t = time – inPoint;
(t/framesToTime(n))*100Dan
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Beautiful! Works as clock!!
Just out of curiosity, what if I were to apply the same concept to the “offset” property, in ramp up mode, that, instead of going from 0 to 100, must be set to variate from -100 to +100?
Thanks a huge lot for your help!
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Add this expression to the offset property.
Remove the keyframes from start. Set it to 0I used this expression in After Effects 2020.
txt=text.sourceText;
t=inPoint;
linear(time,t,t+framesToTime(txt.length),-100,100); -
Wonderful!
One last question: how do I like your answer a thousand times? ahahahah
Thanks a huge lot, friend.
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