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Force Regenerate Thumbnails
[resolved] FRT vs RT (10 posts)

  1. chappie
    Member
    Posted 6 months ago #

    Apart from the obvious differences listed below, what are the main functionality differences between Force Regenerate Thumbnails and Regenerate Thumbnails plugins?

    So far, I have the following:

    1. FRT is updated almost weekly
    RT hasn't been updated since 2012

    2. Almost all FRT support topics are marked "Resolved"
    Almost no RT support topics are marked "Resolved"

    3. The author of FRT is highly visible
    The author of RT is almost invisible

    Thanks for your help -- and big kudos to @Pedro for this gift.

    http://wordpress.org/plugins/force-regenerate-thumbnails/

  2. Pedro Elsner
    Member
    Plugin Author

    Posted 6 months ago #

    Thanks @chappie

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

  3. Pedro Elsner
    Member
    Plugin Author

    Posted 6 months ago #

    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

  4. chappie
    Member
    Posted 6 months ago #

    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?

  5. Pedro Elsner
    Member
    Plugin Author

    Posted 6 months ago #

    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

  6. chappie
    Member
    Posted 6 months ago #

    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?

  7. Pedro Elsner
    Member
    Plugin Author

    Posted 6 months ago #

    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

  8. chappie
    Member
    Posted 6 months ago #

    @Pedro - muchas gracias.

  9. ElectricFeet
    Member
    Posted 6 months ago #

    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 :-)

  10. chappie
    Member
    Posted 6 months ago #

    @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.

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