loop out expression

Question

Hello,I am learning about expression control from a tutorial. There the teacher controls the text position with a null layers which is controlled by Expression Control- Point. In that composition She also teaches us how to connect one dimensional exopression with two dimensionals expression (array). I followed same. She showed Us how can we match the text speed with the rotation value, by pick whipping expression one to another. I can successfully pull these all. but Later I was trying to do someting myself. I try to see if I can loop the text using 'LOOP OUT' expression. I wrote 'loopOut()' below the main expression. but nothing happend. why?  I want to loop the text, maintaining the rotation speed expression (Pick whipped from rotation expression of  angle controller) How can I do it?

Dan Ebberts · Accepted Answer

It looks like you didn't add the keyframes to the angle control. Just add one at time = 0 and another to mark the end of the section you want to loop. The keyframes won't affect the value of the angle control, which will still be driven by its expression.

Dan Ebberts · Answer

loopOut() needs keyframes to operate, so if you just add start and stop keyframes to the Angle Control for the section you want to loop, and then change your text postion expression to this, it should work:temp = thisComp.layer("angle controller").effect("Angle Control")("Angle").loopOut();[temp-650, 872]

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