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alpha in/out on markers with option to flicker
Hi!
I am working with an alpha in/out when reaching the markers called “in” and “out” . It works good, but I’d need to add an extra option with a checkbox to add a flicker only when the fade in and out is there. I did a close try, but when I add the flickering option, it never stops, so I was wondering if you could give me a clue?
This is the expression on the alpha I’m using (without the flickering option)
durIn =effect("duracionIn")("Slider")
durOut = effect("duracionOut")("Slider")
di=framesToTime(durIn)
do=framesToTime(durOut)
if (marker.numKeys > 1){
t1 = marker.key("in").time;
t2 = marker.key("out").time;
if (time < (t1+t2)/2)
ease(time,t1,t1+di,0,100)
else
ease(time,t2+do,t2,100,0);
}else
valueI think it’s pretty easy, but not achieving it to work at 100%!
Thanks! -
3 Replies
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what about this?
it works for me:
freq = effect("freq")("Slider");
amp = effect("amp")("Slider");din=framesToTime(effect("durationIn")("Slider"))
don=framesToTime(effect("durationOut")("Slider"))seedRandom(index,false);
initVal=0;
endVal=100;
wendVal =wiggle(freq,amp)if (marker.numKeys > 1){
t1 = marker.key("in").time;
t2 = marker.key("out").time;animateIn = ease(time,t1,t1+din, initVal,endVal);
animateInFlickr = ease(time,t1,t1+din, initVal,wendVal);
animateOut= ease(time,t2+don,t2,endVal,initVal);
animateOutFlickr=ease(time,t2+don,t2,wendVal,initVal);if (time < (t1+t2)/2)
if(time>=don){endVal}else{
if(effect("flickr in")("Checkbox")==true)
{ animateInFlickr;}else{animateIn;}}else{
if(timeI know it's messy and dirty, if any expression meister here could tidy up the code maybe it can look better, buuut anyway now it works...
//
You can also add an extra nice pulse opacity effect linking the endVal to a slider. You should also add a checkbox, and this code on the slider (which can be called endVal)
freq = 5;
amp = 3;
base = 90;
innerPulse=base + amp*Math.sin(freq*time*Math.PI*2)if(effect("innerPulse")("Checkbox")==true){
innerPulse;}else{value}
so when the checkbox is on, there will be a pulse between the "in" and "out" markers, but if checkbox is off, just the value at the slider. Of course the more sliders you link paramerers to, more options you will have in order to animate, but it can get a bit messy on the Effect Controls (I'd use Pseudo Effects to have it less messy)
happy flickering! -
thanks, it seems to work!!
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wait, there was a couple small bugs!
I’m attaching here a fixed working file:
10243_alphaflickr.aep.zip
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