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Expression to display keyframe values?
Hey All,
I do a lot of rapid prototyping/previs in AE to serve as a rough animation guide for our 3D artists. From time to time, an artist will want to know particular keyframe values (scale percentages, position changes) that I use to achieve my results. Is there a way to display keyframe values that continually update as the sequence plays? This will make previs renders much more useful (and rely less on my artists eye-balling/guessing the values).Thanks for any help!
Michael
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3 Replies
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Are you talking about the current value of a keyframed property, or the values at the keyframes themselves (and if so, which keyframe–closest,previous, or next)?
Dan
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Hey Dan,
Yep – I just want to display the values of keyframed properties (position, scale, etc) for every frame over the course of an animation. I tend to do a lot of squash and stretch, so having the scale value changes visible and embedded into one corner of the screen will be extremely useful.Does that help?
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Using a text layer source text expression, you can format it however you want. For example, you could track Layer 1’s position property like this:
myProp = thisComp.layer("Layer 1").transform.position;
"X = " + myProp[0] +"\rY = " + myProp[1]
To get a manageable number of decimal places, you could add toFixed(), like this:
myProp = thisComp.layer("Layer 1").transform.position;
"X = " + myProp[0].toFixed(1) +"\rY = " + myProp[1].toFixed(1)
Dan
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