FRT vs RT

Thanks @chappie

My add:
4. Very important: The author of FRT is most beautiful \o/

Currently, the difference are that FRT:

– Delete all thumbnails before regenerate
– Update the wp_attachment_metadata and wp_attachment_file while regenerate
– Use GB Image Editor to regenerate

Silly me – how could I have forgotten #4?

Delete all thumbnails before regenerate

Why is this good/better? Are there any circumstances where the RT way might be better?

Update the wp_attachment_metadata and wp_attachment_file while regenerate

I’m not sure how the Attachment thing works in WP – except that it doesn’t automatically tell me which images are used and where, which is what I would have hoped. Does FRT correctly insert attachment data where none was showing before?

Use GB Image Editor to regenerate

Is this a benefit? How does RT regenerate thumbnails?

Why is this good/better? Are there any circumstances where the RT way might be better?

It is always good for 2 reasons:
– Frees space when you change the sizes of thumbs
– If you do not change the size of the thumbs, the routine of wordpress will not create it again

Update the wp_attachment_metadata and wp_attachment_file while regenerate

This fixes some bugs caused by the update of wordpress or some other plugin. FRT ensures integrity joined their images, thus ensuring the proper creation of thumbs

Use GB Image Editor to regenerate

GB is deprecated since version 3.5 +, however, in my opinion, is more efficient than the current library, so FRT use it

Thank you for your quick answers. Something did seem to break image previews in December as my theme (Customizr) stopped displaying previews of new uploads. But I upgraded to new versions of WP (3.8) and of my theme at the same time so I can’t be sure where the problem lies. Based on what you say, it might be caused by WP’s new library engine.

However, I can fix the image previews by enabling Retina screen functionality within my theme. Now I can see all my new image uploads — but I am presumably also creating lots of different image sizes that I don’t want since I am not developing a Retina-oprimised website.

I’m hoping that FRT will regenerate my missing thumbnails and also delete all the versions of my uploaded images which haven’t been used anywhere. Anyway, I prefer to upload accurately sized images than to use the WP image editor.

But presumably some of the automatically scaled images which I don’t physically add to my pages are called into action by my theme as it responds to smaller viewport sizes. How does FRT know that these “responsive” image variants will be needed on smaller screen devices?

I’m hoping that FRT will regenerate my missing thumbnails and also delete all the versions of my uploaded images which haven’t been used anywhere.

FRT will delete all, and, regenerate again all thumbnails with the size wp default (small, medium, large) and all set add_image_size into your theme

How does FRT know that these “responsive” image variants will be needed on smaller screen devices?

FTR just delete all and regenerate. If you need some size especial, add how many add_image_size into your theme

@pedro – muchas gracias.

Chappie: if you’re working locally, you can watch it all happen live with your uploads folder open next to your browser. Try them both and let us know ??

@electricfeet – before running this plugin I’m trying to get a grip on what transformations I should be seeing in my uploads folder. I assume I should see every image (other than my original native uploaded file) deleted and then recreated.

But what I think I want to happen is that every image variant that I haven’t used/placed in the site is deleted and not recreated.

However, I’m not sure that I want this because some of the variants are called automatically in responsive mode – without me hard coding them into a page. (Or will these responsive variants be recreated on-the-fly if I delete them?)

I’m such a wimp to be so scared of things I don’t understand…but I have invested countless hours in my site images and I’m not going to risk that investment by unleashing powerful algorithms on them that I don’t fully understand.