[Mike Clasby]

Sequence layers with the Animation>Keyframe Assistant, and add two expressions.

Here you go:

1) Add the layers to your comp.

2) Trim to the desired length by going down the timeline (2 Sec?) and selecting all, then, Alt ].

3) Select the layers (top down if you want the top one first), then, Animation>Keyframe Assistant>Sequence Layers, then uncheck the “Overlap”. That should sequence them (see “A”, below if you want the layers to overlap)

4) Add the following expression to the layer’s Scale (Copy the Expression, Alt-Click the Scale Stopwatch, Paste):

ScaleInTime = 0.5; // fade in time (seconds)
minScale = 90;
maxScale = 100;

s = linear(time,inPoint,inPoint + ScaleInTime,minScale,maxScale);
[s,s]

Set ScaleinTimem, inScale, maxScale to whatever you want.

5) Now add this expression (we’re almost home) to the layer’s Opacity (T reveals, Alt Click the Opacity Stopwatch this time):

fadeOutTime = 0.5; // fade in time (seconds)
linear(time,outPoint – fadeOutTime,outPoint,100,0)

OK, that’s for one layer, So select both expressions, then Edit>Copy Expression only.

Now select all 199 other layers and Paste.

Or can also make an animation preset out of the opacity and scale expressions for mass application.

That should do it.

“A” – If by “Is there a way to push every still by 2 seconds further than the last?” you meant to literally overlap by 2 sec, try dragging all 200 onto the “Create A New Composition Button” (in the Project Window, between the garbage can and the folder) then you get a dialog box with lots of options for sequencing and other stuff. You can then use that as a precomp, or change the comp settings as need (Ctrl K).

Next week you should be able to do a mass swap, by selecting the 200 layers in the timeline, then Alt-Drag the 200 new photos from the Project Window onto them.

Hmmm… That part sounds too easy.

Enjoy.

Note: These are all mods of Dan Ebberts expressions.

[Mike Clasby]

After looking at my expression I realized that in the test i had re-sized the videos in the wall to 25%, so the first two paramters, audLevUp = 40 and audLevDown = 60 are too small.

You might try something like 200 and 240.

[Mike Clasby]

I hate when I check or uncheck the wrong box too. Enjoy your gridded globe.

[Mike Clasby]

Sounds like you want QuickTime VR or Flash to me, not an AE trick, as far as I know.

[Mike Clasby]

Specifically I was looking for the position of a Child layer via a Dan expression, and I think I could have found it by now in olden days.

There seems to be more noise in the Search replies (not very closely related returns, and lots of them).

Sorry for whining.

[Mike Clasby]

You need to go ask Dan and Filip in the expression Forum:

https://forums.creativecow.net/forum/adobe_after_effects_expressions

[Mike Clasby]

This works for a video wall if the videos are not children, like, not parented to a Null. When the camera’s POI is within 40 pixels of the video’s position it’s Audio will be at Audio Max (AudMax) or have an Audio Level of 0. At 60 pixels or greater it will be at AudMin, or –100 Audio Level.

Put the Expression on the Audio Level (LL reveals)(Copy the Expression, Alt Click the Audio Level Stopwatch, Paste):

audLevUp = 40;//at this distance from anchor point or less audio Max
audLevDown = 60;//at this distance from anchor point or greater audio Min

AudMax = 0;//Max Audio Levels
AudiMn = -100;// Min Audio Levels

point1=this_layer.position;
point2=thisComp.layer(“Camera 1”).pointOfInterest;
delta=sub(point1, point2);// Find the vector between them
distance=length(delta);// Now find the length

linear(distance, audLevUp, audLevDown, [AudMax,AudMax],[AudiMn,AudiMn]);

To put the same expression on several layers at once (they’ll all need it), put it on one layer first, select the expression, Edit>Copy Expression Only, Select all the layer you want to get it, then Paste.

This is a modification from here:
https://jjgifford.com/expressions/geometry/length.html
Example: Interactive Blur

Let me go see if I can figure out that world vector thing again (or rob from Dan this time).

[Mike Clasby]

When you say you set the blending mode of the Black Solid to screen, the setup you describe works for me.

But if you set the Blending Mode inside the Grid effect to Screen, then you see the color of the solid. Is that what you’re doing?

Set all blending modes to Normal or None and you should be good to go. (you can use screen, but do it in the Modes Column, not inside the Grid Effect)

It works for me.

[Mike Clasby]

Add a Solid at the top of the stack, paint on that. For both paint and vector paint there are option to paint on transparent, I believe.

[Mike Clasby]

Try this:

wiggle(30,5)