Creating visual smears using expressions. Help me put it all together!
I’ve been fiddling with expressions for the last 3 hours, and I’m so close I can feel it. But I’m not quite there yet. Perhaps I can get help here?
I’m attempting to define the area of a motion smear using the createPath function.
In the first photo, you will see I have a stick with two nulls on each end. Those are the nulls I want to use to get the smear’s information — I want to get X number of each null’s coordinates over Y period of time. Then I want to use those coordinates as the blueprint for the createPath – Stepping first over the top null’s returned coordinates over time, then backwards over the bottom null’s returned coordinates over time. The second photo is a picture of my code. Hopefully you can at least see what I’m attempting to do, even though the code itself doesn’t actually achieve what I want.
The third photo is a picture of what, when the expression is working, the result should probably look like.
Please let me know if I can provide any clarification for you! I feel as though I’m extremely close, but just not quite there. Any and all help is appreciated!