Backlight creating photos2x and thumbnails2x album directories

I find I may be forced to eat well roasted crow. I have been puzzling, and blaming my former hosting service. for out of control file counts and capacity problems.

Looking closely at my mirror sites; on my Synology NAS site each album contains photos and thumbnails directories. However, on my hosted site I have double image and thumb renditions including photos, photos2x, thumbnails and thumbnails2x.

It seems I am the source of the size and file count discrepancy. The problem appears in both Pangolin and Kookaburra templated albums, I use the LRC publish service with watermarks all managed by BL.

I have been unable to find the BL settings which lead to this duplication or how to get rid of it. Anyone have any thoughts where I can look to fix my error?

Regards,
James.

On further examination, it looks like each album creates multiple renditions of each image.

In the following directories:
master
photos
photos2x
thumbnails
thumbnails2x

I’ve tired via SFTP deleting the photos2x and thumbnails2x directories on a subset of albums without noticeable change in site behavior.

A further question begging asking is after the photos and thumbnail renditions are created, is there any reason to retain the master directory images?

those 2x versions are fed to high resolution displays like Retina displays.
Look under the Image Renditions section of the album template, there’s an option there to create 2x thumbnails for Retina displays

Thanks Rod. Found it in the Pangolin album templates and it is off in all of them. I haven’t been able to find a similar option in the Kookaburra templates.

Could I have had them on in a past iteration of BL? Quite possibly. My new Synology NAS site has never had them on and does not have the additional rendations.

Do you have any instinct regarding how LR publisher plugin functions. i.e. does it create these automatically if any of the templates has Retina turned on?

Any thoughts on where of if the Retina option is in the Kookaburra templates?

Tnanks,
James.

Yes, unless you’re using Master renditions, and then Backlight creates them (as far as I know)

I’ll have to take a look.

More experimentation. Pangolin with Retina on or off does not generate the *2x directories. They are only generated if the album template is set to a Kookaburra template at the time the album is published from Lightroom. Naturally, it does not delete them if the template is changed back to Pangolin.

The only mention I can find of Retina in Kookaburra is in setting rendation size in the album template editor. See image.

I suspect that I’ve somewhere set my image presentation size to something other than 2048 and this is prompting Publisher to create the additional renditions. The Pangolin albums contain long edge 2048 images in both the master and photos directories, the latter with the watermark as expected.