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Quad easing
Hello,
I am trying to change this expression easing from Cubic to Quad, can anyone help me? Replacing the “Cubic” with “Quad” in the expression has been unsuccessful.
Thanks in advance.
Regards,
Obed
function easeInOutCubic(t) { return t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1 };startVal = -2000;
endVal = 0;
startDur = 1;
endDur = 2;t = ease(time,inPoint+startDur,inPoint+endDur,0,1);
e = easeInOutCubic(t);
x = ease(e,0,1,startVal,endVal);[value[0], value[1],x];
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6 Replies
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Try this function…
function easeInOutQuad(t) { return t<.5 ? 2*t*t : -1+(4-2*t)*t };
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Hi Kyung,
Please, it was unsuccessful. it displaced error in line 9 of the expression.
ThanksRegards,
Obed -
I’m not sure how to fix yours off the top of my head, but here is my own quadratic easing function:
function easeInOutQuad (t, tMin, tMax, value1, value2){
b = value1;
c = value2-b;
d = tMax-tMin;
t = tMin < tMax ? thisLayer.linear(t,tMin,tMax,0,d) : thisLayer.linear(t,tMin,tMax,d,0);
t /= d/2;
if (t < 1) return c/2*Math.pow(t,2) + b;
t--;
return -c/2 * (t*(t-2) - 1) + b;
}Alex Printz
Mograph Designer -
Just to clarify, I am easing on position property. Changing position without any keyframe. Starting from InPoint time with a duration of 1 second.
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Hi,
I have fixed by following going through the forums. I go what I was looking for. Thanks
Regards,
Obed
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You don’t need anything in particular to do that, just use the function I gave you. Here it is on the x-property.
function easeInOutQuad (t, tMin, tMax, value1, value2){
b = value1;
c = value2-b;
d = tMax-tMin;
t = tMin < tMax ? thisLayer.linear(t,tMin,tMax,0,d) : thisLayer.linear(t,tMin,tMax,d,0);
t /= d/2;
if (t < 1) return c/2*Math.pow(t,2) + b;
t--;
return -c/2 * (t*(t-2) - 1) + b;
}startVal = -2000;
endVal = 0;
startTime = thisLayer.inPoint;
endTime = startTime+1;px = easeInOutQuad (time, startTime, endTime, startVal, endVal);
[px,thisComp.height/2]
Alex Printz
Mograph Designer
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