I want to create an animation of text writing itself. The source text comes in as a png image file with transparency.
Most tutorials I find online describe using the pen tool to create a mask made up of a series of bezier lines following the text. You then attach a stroke effect, set a decent stroke width and then keyframe the endpoint.
The problem I found with this method is that the stroke width is fixed, so sometimes too much of the text is unmasked at once, or sometimes not enough. You could keyframe the width but that’d change the brush width for the whole mask all at once, giving undesirable results.
I’ve learned that there’s another way to do this by using the brush tool. With a pressure-sensitive tablet, you can vary the stroke width as you paint on the text. This results in a paint effect with a beginning and endpoint that you can animate using keyframes, giving the same result as the previous method but with much more ease in creating the strokes and which also follow the natural thickening and thinning of the strokes in the original text.
I can’t figure out how to use this method to make my text write itself into existence, however. Anyone have any ideas?