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Move layer x pixels every nn frames and then stop
Hello everyone, I have found on this discussion how to move layer on x-axis every something frames
https://creativecow.net/forums/thread/move-layer-x-pixels-every-nn-frames/
I am moving a composition 200 pixels to the left every 10 frames using this expression.
tStep = framesToTime(10);
tPause = framesToTime(10);
jumpX = -200;
t = time - inPoint;
nSteps = Math.floor(t/(tStep+tPause));
phase = t-((tStep+tPause)*nSteps);
e = linear(phase,0,tStep,0,jumpX);
value + [nSteps*jumpX + e,0]If you could help me how to stop it for example on the 300th frame and leave it in that same position.
Regards
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8 Replies
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This would be one way:
tStep = framesToTime(10);
tPause = framesToTime(10);
tStop = framesToTime(300);
jumpX = -200;
t = Math.min(Math.max(time - inPoint,0),tStop);
nSteps = Math.floor(t/(tStep+tPause));
phase = t-((tStep+tPause)*nSteps);
e = linear(phase,0,tStep,0,jumpX);
value + [nSteps*jumpX + e,0]
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Thank you so much! Works like a charm!
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Hey Dan, is it possible to tell the expression when to start, on which frame?
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Like this (adjust tStart to set start frame):
tStep = framesToTime(10);
tPause = framesToTime(10);
tStart = framesToTime(10);
tStop = framesToTime(300);
jumpX = -200;
t = Math.min(Math.max(time - tStart,0),tStop);
nSteps = Math.floor(t/(tStep+tPause));
phase = t-((tStep+tPause)*nSteps);
e = linear(phase,0,tStep,0,jumpX);
value + [nSteps*jumpX + e,0]
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Thanks!
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Hey Dan, one more question. I have tried to use it on the Y-axis as well, but when I change to jumpY it stay on an X-axis? Regards
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I guess that would look like this:
tStep = framesToTime(10);
tPause = framesToTime(10);
tStart = framesToTime(10);
tStop = framesToTime(300);
jumpY = -200;
t = Math.min(Math.max(time - tStart,0),tStop);
nSteps = Math.floor(t/(tStep+tPause));
phase = t-((tStep+tPause)*nSteps);
e = linear(phase,0,tStep,0,jumpY);
value + [0,nSteps*jumpY + e]
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Thank you so much!
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