[Mike Clasby]

Pickwhip the layer’s position to the channel slider in the Audio Amplitude Layer, by Alt clicking the position stop watch (layer to be moved by the sound)
then pickwhip that to the slider of the channel you want in the Audio Amplitude Layer. You get a position expression like this:

temp = thisComp.layer(“Audio Amplitude”).effect(“Left Channel”)(“Slider”);
[temp, temp]

Change the bottom line to:

value + [0,temp,0]

This is from an earlier post:

Name: Dan Ebberts
Date: Aug 11, 2004 at 9:07 am
Subject: Re: I want my expression to effect only one axis of a layer’s position

Start here if you suffer from expression-transgression:
https://www.motionscript.com/
https://www.jjgifford.com/expressions/index.html

[Mike Clasby]

Try saving an animation preset by:

Select the properties, property group, and effects that contain the values or keyframes you want to save:
Choose Animation > Save Animation Preset.

The expressions are picked up (for me, anyway) when you select the property (above)that the expression is applied to. This is from the help files and there are several other ways to saave, search the help files for Animation Preset.

[Mike Clasby]

Try saving an animation preset by:

Select the properties, property group, and effects that contain the values or keyframes you want to save:
Choose Animation > Save Animation Preset.

The expressions are picked up (for me, anyway) when you select the property (above)that the expression is applied to. This is from the help files and there are several other ways to saave, search the help files for Animation Preset.

[Mike Clasby]

This is probably not what you want to hear, and definitely not the most elegant, but you can change rotation with keyframes through the animation even though position is controlled by an expression. One big fat expression for all would be very nice, but you could make it work with keyframes added on.

[Mike Clasby]

This is probably not what you want to hear, and definitely not the most elegant, but you can change rotation with keyframes through the animation even though position is controlled by an expression. One big fat expression for all would be very nice, but you could make it work with keyframes added on.

[Mike Clasby]

For the basic fall and bounce, this post from Dan Ebberts might help. If the link doesn’t work, search for “Scale/gravity” Ebberts, Yes to Search Archive.

https://forums.creativecow.net/cgi-bin/new_read_post.cgi?forumid=2&postid=502053&archive=T

[Mike Clasby]

For the basic fall and bounce, this post from Dan Ebberts might help. If the link doesn’t work, search for “Scale/gravity” Ebberts, Yes to Search Archive.

https://forums.creativecow.net/cgi-bin/new_read_post.cgi?forumid=2&postid=502053&archive=T

[Mike Clasby]

A somewhat awkward (my specialty) solution works with an expression tying the ant’s position to the of the Write-on Effect (Brush Position) of the larger Rectangle. Parenting the Ant to the rectangle and then precomp both layers, then time remaping the precomp. Setting a keyframe in the middle of the time remap and tying it to a slider, gives you a slider controlled Ant the crawls the edges of the larger rectangle.

[Mike Clasby]

A somewhat awkward (my specialty) solution works with an expression tying the ant’s position to the of the Write-on Effect (Brush Position) of the larger Rectangle. Parenting the Ant to the rectangle and then precomp both layers, then time remaping the precomp. Setting a keyframe in the middle of the time remap and tying it to a slider, gives you a slider controlled Ant the crawls the edges of the larger rectangle.

[Mike Clasby]

As usual I “almost” have a solution for you, just need a little help from Dan Ebberts or another expression whiz.

Go to Dan Ebbert’s tut, “Building the World’s Greatest Cameraman”. (Click on Dan’s head above and scroll down). Download the project file.
This generates particles(layers of your choice) in 3D space.

Go to the “snow” comp. Delete all the snow layers except for a few.

Put your Bald Head layer at 320, 480, 0, and change the “X rotation” to 90 degrees.

I moved the camera (with the orbit camera tool and the other camera tools) to 300, -400, 0, to get a view from above the bald head layer and have the snow flakes-logos from above.

Then just swap out the snowflakes layer with your logo layer by Alt-dragging the logo onto the snowflake in the timeline window.

Dup the logo layer as many times as you need.

The only problem is, the snowflakes-logos fall through the baldhead layer.

Maybe Dan will come on and tell you how to put a floor at the level on the bald head layer.