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How to Stop A Layer Trail?
Dear Mr. Dan Ebberts
I have been going through your Master Expressions tutorial. Which is very useful.
The only thing I could not do after going through the well described tutorial is “How to stop the trail for some time (or forever) at a given point of time?”I hope to get the answer at the earliest.
regards
Ashwani Kumar
India -
4 Replies
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Which expression are you looking at, and what do you mean by “stop the trail”?
Dan
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Sir
I am using the following expression from your document Mastering Expressions.delay = 5; //number of frames to delay
d = delay*thisComp.frameDuration;
thisComp.layer(index – 1).position.valueAtTime(time – d)Following expression is applied to the Top layer (to create a circular motion):
[(thisComp.width/2), (thisComp.height/2)] + [Math.sin(time)*250, -Math.cos(time)*250]Subsequent layers are having your expression to create a trail.
Now I would like to STOP the TRAIL at some point of time. So that the entire trail is visisble. Normally what happens all the layers acquire same position after completing the circular motion (if I made to stop the TOP layer).
Kindly help me.
regards
Ashwani Kumar
India -
Did you try the variation farther down the page, in the section titled “Follow the Null”? That version lets you stop the trail, and even back up if you want to. That’s probably more what you’re looking for.
Dan
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Thankyou Sir
It is working.
You are great.
Once again many many thanks for prompt reply.
regards
Ashwani Kumar
India
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