Skip navigation
zyboo
zyboo
Currently Being Moderated

Rebuilding 1:1 previews on several forders - numbers do not match

Nov 27, 2012 2:39 PM

In order to speed up previews in library mode, I selected several folders containing 2352 pictures and deleted the previews, selecting delete all previews.

I then wenton to rebuild all 1:1 previews, selecting all pics. and, as usual, asking to render 1:1 previews.

 

To my surprise LR (4.2 on a  10.6.8 Mac) is proceeding to render... 1252 previews. The skipped files seem haphazard (rebuilding 290, skippping 291/292/293, rebuilding 294-300, skipping 301,...).

I also checked whether the skipped files were cropped differrently. No luck. Starting from 3888 px CR2 files I found two contiguous files cropped to 3554 px, with one preview rebuilt and one not, then two pics. cropped to 3527 px treated likewise.

  What's going on?

Thanks in advance.

453 Views   4 Replies   Latest reply: zyboo, Dec 1, 2012 7:57 AM
 
Replies
  • Mandhir Bhatia
    Currently Being Moderated
    1. Mandhir Bhatia,
    Nov 29, 2012 3:35 AM   in reply to zyboo
    Report

    Zyboo,

     

    The previews of the files might still have struck through in ACR cache due to which LR is not rebuilding the previews.

     

    You want to do it all so purge the ACR cache too and check the same.

     

    Hope that can make some things look better.

     

    Mandhir

     
    |
    Mark as:
  • zyboo
    Currently Being Moderated
    2. zyboo,
    Nov 29, 2012 9:58 AM   in reply to Mandhir Bhatia
    Report

    Thanks ffor the suggestion: I can see that I have a hefty ACR cache (27Gb), but how can I purge it?

     
    |
    Mark as:
  • Mandhir Bhatia
    Currently Being Moderated
    3. Mandhir Bhatia,
    Nov 30, 2012 5:42 AM   in reply to zyboo
    Report

    You can follow the steps below to go to See the ACR cache settings.

     

    Choose Lightroom > Preferences (Mac OS) or Edit > Preferences (Windows).

    Click the File Handling tab.

    In the Camera Raw Cache Settings area & Click on Purge Cache

     

     

    Choose Lightroom > Preferences (Mac OS) or Edit > Preferences (Windows).

    Click the File Handling tab.

    In the Camera Raw Cache Settings area, Click on Purge Cache.

     

    After that recreate the LR would rebuild the cache once back in Develop Module....

     

    Mandhir

     
    |
    Mark as:
  • zyboo
    Currently Being Moderated
    4. zyboo,
    Dec 1, 2012 7:57 AM   in reply to Mandhir Bhatia
    Report

    Hi Mandhir,

     

    I proceede as you outlined and got a message "all previews are up-to-date" (the equivalent in French, that is).

    I then quit LR, relaunched, deleted all previews... and got the same message.

     

    I tried on another 1678 photos batch (all different from the pictures selected before), deleted all previews and, upon trying to rebuild 1:1 previews, LR rebuilt 1172 pictures.

     

    Not very different from the starting point...

    Zyboo

     
    |
    Mark as:
Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Answers + Points = Status

  • 10 points awarded for Correct Answers
  • 5 points awarded for Helpful Answers
  • 10,000+ points
  • 1,001-10,000 points
  • 501-1,000 points
  • 5-500 points