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loopOut(“continue”) not interpreting correctly 2d values
Hi, I use the loopOut(“continue”) to quickly animate a forever-going element with just two keyframes, usually, it works really well, but sometimes I see it won’t work, here’s an example. I put a Fractal noise in one layer, I animate the offset with two keyframes, it moves 1000px in X in 10 frames, then I write loopOut(“continue”) in the offset expression, and I would expect that on frame 20, the offset would’ve moved another 1000 px. but it is not, it only moves 282.4 px more. I guess this happens because I’m applying “continue” to a 2-dimensional value, but it works in position even if I don’t separate dimension. Do you have any solutions that involves using the expression?
I’ll post an image of what I’m doing In AE
thanks
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7 Replies
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Hi Mateo,
Since you’re used to the expression I guess you’ve checked this already, but just in case – Are both key frames linear? If they’re not, the result your getting is typical.
Hope you find a solution!
/ Dan
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Sorry, just looked closer on your screenshot and it looks like the keyframes are linear, but just in case, look a the graph to make sure.
Otherwise I would animate a null with the expression and connect the offset to it. Not a pretty solution, but if it’s a bug there’s no reason to waste more time.
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I am curious if separating the x and y would solve the issue.
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the null option would work that’s true. I know it because when using the expression with position properties works well, and just to be sure you can separate dimensions to make it work perfectly. However, I am intrigued if there’s a way to say loopOut to only one dimension inside the expression or if there’s a tweak to make the expression work directly in the property.
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You should check the spatial interpolation of your keyframe, it might be on Auto Bezier and you should set it to linear.
Another tip: you can always use “time” as a constantly growing variable to achieve something similar
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I can’t replicate the error.
Check in the Graph Editor, and enable the “Show post expression Graph” button on the property and you should see a nice continous line, if not, you should be able to trouble shoot it better by looking at what it is doing in the graph.
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I checked the spatial interpolation and when set to linear it wouldn’t work either. I was intrigued by your message saying that you cannot replicate the error, so I went to a different version of AE and it worked. At the office where I’m working, we have to use AE 2018 still for some projects and the error is showing up in that version, the current version of AE work as expected, I’ll upload two images, the first one is the graph editor of AE 2018, the second one is AE 2020 (17.6)
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