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Setting up starting and ending “view finders” (Ken Burns without keyframes)
I make a lot of Ken Burn’s Effect slide shows and I’m looking to avoid keyframing, rather instead relying on two guide layers inside a precomp to set the “views” at the beginning and end of a 10 sec animation.
So in this case, the outside comp would look into itself and start with the “view” defined by the green layer and then zoom in and move to the “view” defined by the red layer.
I already know how to access the scale and position information of the inside guide layers, what I’m having trouble with is finding, I guess, the ratios. I sort of got it to work with scale but the positioning throws that off. To make matters a little more complicated, the outside comp is half the size of the pre-comp)
Thanks in advance!
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2 Replies
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Tricky, but I think this will be close:
// position:
dur = 10;
v1 = comp(name).layer(“View 1”);
v2 = comp(name).layer(“View 2”);p1 = toComp(v1.toComp(v1.anchorPoint));
p2 = toComp(v2.toComp(v2.anchorPoint));p1a = value + ([thisComp.width,thisComp.height]/2 – p1);
p2a = value + ([thisComp.width,thisComp.height]/2 – p2);
ease(time,inPoint,inPoint+dur,p1a,p2a)// scale
dur = 10;
v1 = comp(name).layer(“View 1”);
v2 = comp(name).layer(“View 2”);s1 = [thisComp.width/(v1.width*v1.scale[0]),thisComp.height/(v1.height*v1.scale[1])]*10000;
s2 = [thisComp.width/(v2.width*v2.scale[0]),thisComp.height/(v2.height*v2.scale[1])]*10000;ease(time,inPoint,inPoint+dur,s1,s2)
Dan
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Thanks, Dan! Once again, amazing stuff I know I could just never come up with. Testing it out now and it seems to work fine
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