Scale compositions on the project panel with Automation Blocks?

[PolyArtboard]

Hi,
Is it possible to make a tool for Scale compositions on the project panel with composition contents?
For example, I have 20 4K compositions, and I want to resize them to 1080p. With some scripts making scale but comp contents is not scaling correctly. Maybe Automation Blocks can help with this process.

[Mathias Moehl]

Yes, that should be possible as follows:

1. change the size of the comp
2. create a new null
3. parent all layers which have no parent to that null
4. scale the null down to the new size
5. optionally: delete the null again
   I've scheduled some time for tomorrow to create some sample code.

[PolyArtboard]

I appreciate your efforts, so thank you.

[Mathias Moehl]

Ok, I added a tool now to the Community Library at

Comps/Comp Size/Change Comp Size and Scale Content

which changes the size of comps (the active one, or the selected ones or all) and scales the content.

The tool is similar to "File->Scripts->Scale Composition" in the Ae menu, but with some extra features:

- Support to change the aspect ratio: You can enter both a width and a height for the new comp and can choose if the content should be scaled to fit or fill the new area of the comp.

- support to process the active comp, or all selected comps or all comps.

[Mathias Moehl]

Here is a demo video for the tool: