After Effects Expression : Reveal text (TypeOn + blinking cursor)
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//put this expression for the 'Source Text' value on your text layer, and add 4 markers on the layer : 'cursorStart', 'textStart', 'textStop', 'cursorStop' | |
cursor="|"; | |
cursorBlink = 1; //seconds | |
txt = value; | |
timeIn = thisLayer.inPoint; //seconds | |
txtSize = text.sourceText.length; | |
animateText = true; | |
showCursor = true; | |
//check if required markers exists | |
try{ | |
textStart = marker.key('textStart').time; | |
textStop = marker.key('textStop').time; | |
}catch(e){ | |
AnimateText = false; | |
} | |
//check if required markers exists | |
try{ | |
cursorStart = marker.key('cursorStart').time; | |
cursorStop = marker.key('cursorStop').time; | |
}catch(e){ | |
showCursor = false; | |
} | |
if (animateText){ | |
duration = textStop - textStart; //type-on duration in seconds | |
txtIdx = linear(time, textStart, textStop, 0, txtSize); | |
txt = substr(0,txtIdx) | |
} | |
if (showCursor){ | |
F = Math.round( (time + cursorStart) % cursorBlink ); | |
if ( (time > cursorStart) && (time < cursorStop) && (F==1) ) { | |
txt += cursor; | |
} | |
} | |
txt; |
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...Or with a slider 'txtComplete' (0 to 100 percent) that you can use to animate the text progression :