Trapcode in AE, Emitter position to follow layer position

[Mark]

I am linking the emitter position to a layer position but it drifts, To parent is a 2d layer and it looks like Particular is placing it in 3d space, how to I get it to set at 0 in Z, or is there another way? I don't want to create a null. I have hundreds of layers and don't want to have to double them all to get this to work.

Thanks, mark 

[Dr. Sassi]

Hi Mark,

Sorry for the delay; this was the first time in nearly two decades that we had close to a day a DNS server problem. Not fun for anyone to have.

There are three temp values; delete the third one, including the comma on the left of the third temp. See image.

("Yellow Solid 1" is the reference layer, change this to your needs.)

Example
https://stcineversityprod02.blob.core.windows.net/$web/Cineversity_Forum_Support/2024_PROJECTS_DRS/20240117_CV4_v241_drs_24_RGtr_01.aep.zip

The position source is a 2D source, and to make up for it for the receiving parameter, Ae copies the second to third "axis", which moves things differently than with two parameters.
So, your observation is correct; the third one needs to be untouched for your needs.

All the best

[Mark]

Thank you!

[Dr. Sassi]

You're very welcome, Mark.

Do you know the book by Marcus Geduld, After Effects Expressions?
Amazon has often even those for $10 (used), but they are worth it.

My best wishes