Waldemar Werbel
Forum Replies Created
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Cheers Dan,
That works insofar as the animation isn’t broken, but there’s no discernable difference between the eases (ie. stacked ease looks exactly the same as the standard ease…)
Will keep looking at and thinking about it (and post any progress) thanks for your help so far.
Wal.
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Hi Dan,
Heh, well – I’ve tied myself up in knots with this one – the theory of it seems straightforward enough, but I can’t seem to get it to work properly, or rather, consistently – when it seems to work, there’s no discernable (to me!) rhyme nor reason as to why it does..!
New code is below – I’ve set the easeA variable up a few lines in and then call it later on. The last two numbers in the variable (0 and 30) were eventual guesses, but these values are the only way that I can get it to ‘work’ – changing that last 30 has the same effect as changing the second 30, which is essentially setting the out point of the ease.
When I try to use something similar (easeB variable) for the easeIn later on nothing happens at all..!
I’m almost definitely going about this in entirely the wrong way – anyone got any pointers to how to properly implement a stacked ease via an expression..?
Thanks again for the help guys!
Wal.
textWidth = thisComp.layer("SAMPLE TEXT").sourceRectAtTime().width;firstPos = [0-textWidth,800];
onscreenPos = [200,800];
lastPos = [200+textWidth+10,800];easeA = easeOut(time, 0, 30, 0, 30);
easeB = easeIn(time, 70, 100, 0, 100);C = thisComp;
n = 0;
if (C.marker.numKeys > 0){
n = C.marker.nearestKey(time).index;
if (C.marker.key(n).time > time){
n--;
}
}
if (n > 0){
if (C.marker.key(n).comment.toLowerCase() == "first"){
easeOut(easeA, framesToTime(0),framesToTime(30), firstPos, onscreenPos);
}else if(C.marker.key(n).comment.toLowerCase() == "onscreen"){
onscreenPos;
}else if(C.marker.key(n).comment.toLowerCase() == "last"){
easeIn(easeB, framesToTime(70), framesToTime(100), onscreenPos, lastPos)
}else{
value;
}
}else{
value;
} -
Hi Dan,
>but you can apply the eases multiple times if you need a more severe ease.
Do you mean like this?
https://forums.creativecow.net/thread/2/1038950#1056176
I can’t work out for sure what going on in there – I did have a go at ‘stacking’ the eases, but no joy as yet..!
Wal.
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Hi Dan,
As ever, thanks a million for your help – as far as I’m concerned you’re without doubt the most useful guy on the internet..!
????
I’m probably not using it correctly, but that snippet above didn’t seem to work – the error returned was ‘The property has no keyframe number 1’.
Anyway, after a bit of button mashing I finally got something which is workable (for my needs) – code below.
Another couple of questions, if I may.
As you can see, I’m referencing specific frames to get the animation to happen – the markers aren’t doing the triggering, the expression’s just using them to see what it needs to do via the ‘if’ and ‘else’ statements, which makes me think do I even need the markers any more? If the expression can be written to make a series of positional changes between pairs of frames, then that would be a more efficient approach…
The second question relates to easing via the expression. I’m aware of Penner’s equations after coming across another one of your posts – I’m many leagues out of my depth here, but out of interest – any pointers on how you’d begin to implement these into a format that the ease command can access..?
All the best.
Wal.
textWidth = thisComp.layer("SAMPLE TEXT").sourceRectAtTime().width;firstPos = [0-textWidth,800];
onscreenPos = [200,800];
lastPos = [200+textWidth+10,800];C = thisComp;
n = 0;
if (C.marker.numKeys > 0){
n = C.marker.nearestKey(time).index;
if (C.marker.key(n).time > time){
n--;
}
}
if (n > 0){
if (C.marker.key(n).comment.toLowerCase() == "first"){
easeOut(time,framesToTime(0),framesToTime(30), firstPos, onscreenPos)
}else if(C.marker.key(n).comment.toLowerCase() == "onscreen"){
onscreenPos;
}else if(C.marker.key(n).comment.toLowerCase() == "last"){
easeIn(time,framesToTime(70),framesToTime(100), onscreenPos, lastPos)
}else{
value;
}
}else{
value;
} -
Okay,
Initial thinking about how this could work was far too muddled and unlikely to ever work…
I found one of Dan’s old expressions on using markers to control camera position here: https://forums.creativecow.net/thread/227/17024
and modified it a bit to change the position of my text layer based on the marker name. So far so good – I can change the length of the string of text and it’ll always position itself just off screen to begin with.
My question now is – rather than the text layer jumping/snapping to its new position when hitting a marker, is there a way of animating the text layer (a linear animation with an ease) to travel from it’s current position to the new..?
Apologies if I’m still barking up the wrong tree and asking a dumb question..!
As ever, thanks for any help.
Wal.
textWidth = thisComp.layer("SAMPLE TEXT").sourceRectAtTime().width;firstPos = [0-textWidth,800];
onscreenPos = [200,800];
lastPos = [200+textWidth+10,800];C = thisComp;
n = 0;
if (C.marker.numKeys > 0){
n = C.marker.nearestKey(time).index;
if (C.marker.key(n).time > time){
n--;
}
}
if (n > 0){
if (C.marker.key(n).comment.toLowerCase() == "first"){
firstPos;
}else if(C.marker.key(n).comment.toLowerCase() == "onscreen"){
onscreenPos;
}else if(C.marker.key(n).comment.toLowerCase() == "last"){
lastPos;
}else{
value;
}
}else{
value;
} -
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Thanks Dan.
That worked a treat.
Very much obliged to you!
Wal.
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>Maybe seldom used, but useful to know about…
That bit of info’s probably saved me a couple of days from the future!
Nice one.
—
w.werbel. uk.https://homepage.ntlworld.com/w.werbel/showreel/
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Hehe,
my next question was going to be: “Why would parseInt try and convert to octal?” But I’m guessing I probably don’t need to know that… 😉
As ever, thanks for your help. Amazing.
—
w.werbel. uk.https://homepage.ntlworld.com/w.werbel/showreel/
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Out of interest, I know this bit’s pulling out the relevant number from the timecode variable, but what’s the ’10’ doing in the
h = parseInt(t[0],10);
part?
—
w.werbel. uk.https://homepage.ntlworld.com/w.werbel/showreel/