[Yonner Draas]

The problem is definitely Fractal Noise, and although I thought I had a fix for it by switching it off and on, the issue often pops up in the middle of rendering the video. I’m thinking of getting rid of Fractal Noise in my compositions altogether, but have no idea how to approach such a thing. Is there a way to replace all the black solids in my project with an image of white dots/actual building windows, while keeping the dimensions of the solids so the 3D models stay the same? If I have to I’ll do this one by one for each solid.

[Yonner Draas]

Personally (although the quality may not be as high as rotoscoping, but it’s a lot faster) I’d use a keying plugin like Extract to key out the bright areas of the frame (it looks like the dancers are very deep black). The feet will be very tricky, but if the dancers stay in the same distance from the camera you could create a mask for the dancers that stops just where their feet would meet the ground, as it looks like there’s a bright reflection on the floor behind the feet that would also be keyed out with Extract. You could also keyframe the border of the mask if they move forwards and backwards.
You’d have to try it first to see if this works, and it also depends on how high the quality of the silhouettes needs to be, but if it works it will save a lot of time.

[Yonner Draas]

I don’t have any Optical Flares, but I think I’ve found the source of the problem (still don’t know the reason or how to stop it from happening again): Fractal Noise. I use fractal noise to generate the white lights on the buildings. When the glitch happens, I go into that precomp, to the layer of that side of the building, switch Fractal Noise off and on, and the glitch disappears in the main comp. I have no idea why this happens but at least I now have a quick solution for it…

[Yonner Draas]

Actually there is a plugin that does just this: Wave Warp. Set the Wave Type to Square, increase the Wave Width so the bars are wider, and then keyframe the Wave Height to get the moving bars like in the example video!

[Yonner Draas]

I actually am running it on Windows 10, I didn’t know that could result in any problems because it has worked fine for me the past year and a half…
And I had already checked if I had any intersecting layers but that is not the case.

[Yonner Draas]

Thanks for responding! The problem seems to have fixed itself, it does exactly what I want again now. Must have been some kind of bug in after effects..

[Yonner Draas]

Is this what you’re looking for?

[Yonner Draas]

It worked! Thank you so much, it looks perfect now.

Sander

[Yonner Draas]

Thank you, that worked, but now I get an error at line 4: ” warning: Expected: ) ”
By the way, thanks for taking the time to help me with this!

[Yonner Draas]

Well its my camera I want to wiggle, and I can’t apply effects to a camera, so my slider is on the null object. I don’t really know what in the expression I need to replace with what, since I’m quite a rookie at expressions. My expression actually looks like this (and I get the error here):

freq = effect(thisComp.layer("Null 1").effect("Slider Control")("Slider"));
amp = 10;
n = freq.numKeys;
if (n > 0 && freq.key(1).time < time){
accum = freq.key(1).value*(freq.key(1).time - inPoint);
for (i = 2; i <= n; i++){
if (freq.key(i).time > time) break;
k1 = freq.key(i-1);
k2 = freq.key(i);
accum += (k1.value + k2.value)*(k2.time - k1.time)/2;
}
accum += (freq.value + freq.key(i-1).value)*(time - freq.key(i-1).time)/2;
}else{
accum = freq.value*(time - inPoint);
}
wiggle(1,amp,1,.5,accum)