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Clamp expression on a child layer?
Hi, I’m fairly green when it comes to understanding expressions, and I have a small problem with the clamp expression. I have NULL that I want to restrict from passing through a “floor”. So i add the clamp expression to its position and everything works, it stops where I need it to stop. The problem comes when I have to link this same NULL to a different parent NULL which also has animation on it. When I link these two together, the expression on the child NULL somehow stops working (no error message), and it can pass through the floor again.
Can someone help me out?
yClamp=clamp(transform.position[1],-800,800);
[transform.position[0],yClamp]
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7 Replies
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I haven’t tested it, but give this a try:
p = toComp(anchorPoint);
yClamp=clamp(p[1],-800,800);
fromComp([p[0],yClamp])Dan
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Thanks for replying! : ) but no, that didnt quite work. I place this expression in the child layers position, correct? It kinda flips out a bit : P
Thanks again! -
That’s what I get for not testing it. Try it this way:
p = toComp(anchorPoint);
yClamp=clamp(p[1],-800,800);
parent.fromComp([p[0],yClamp])Dan
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Thank you! I have no idea how it works, but been looking for a way to get this working for a long time : D Amazing.
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Hi again! I now had a chance to try this expression out on a project, and although it works perfectly for what I described earlier, I now see that I forgot to add an important detail earlier. The child layers (in this case NULLs) also has to ignore the rotation of the parent layer. Right now, when I rotate the Parent, the child layers rotate around the parents anchor point. Is there a way to ignore the positional displacement that comes from rotating the parent layer? (I hope im making sense here…) Anyway THANKS!
p = toComp(anchorPoint);
yClamp=clamp(p[1],0,890);
parent.fromComp([p[0],yClamp])
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Hi Tord-Øystein!
how i can move object in path move down and when touch path move up -
Hi !
how i can move object .. up or right..etc when touch Path(curve ..not line) but i want down… ☹same https://www.youtube.com/watch?v=vQxD8OOjh-I .. 6:15
please, i took myphoto you see and Thank.yP = thisComp.layer("Null 2").transform.position[1]
clamp(yP, 0, -1500)Some contents or functionalities here are not available due to your cookie preferences!This happens because the functionality/content marked as “Google Youtube” uses cookies that you choosed to keep disabled. In order to view this content or use this functionality, please enable cookies: click here to open your cookie preferences.
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