LR: Skip rendering previews (completely) for images smaller than preview size

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  • Updated 6 years ago
  • (Edited)
Testing LR 4.1rc2 under Windows 7 x64.
I noticed some weird behaviour, which is a cosmetic glitch rather than a problem.

To reproduce:

> First step: render standard-size previews (1680px) for the whole catalog; in my case it includes hi-res shots (10MP) as well as low-res shots (1600x1200). After a while LR displays a message that previews were rendered for all photos.

> Second step: immediately re-render standard-size previews for the whole catalog. LR scans existing previews, then re-renders (very fast!) previews for a bunch of images.

This behaviour is at best misleading, for no previews were obviously re-rendered - given that they were all up-to-date in the first place and that the new 'rendering' step goes too fast to be true.
Wild guess: it attempts to recreate previews for low-res shots but since the dimensions are lower than those of the intended previews, it simply skips them. I base this assumption on the number of falsely re-rendered previews, almost equal to the number of low-res shots (but can't really tell, as LR does not offer to sort shots by resolution/Mpx count)

I suggest LR should simply skip the rendering phase (as it already does for most shots) instead of displaying a false "rendering previews" status then "previews rendered for X photos" message box.
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Chris Packrat

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Posted 6 years ago

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Photo of Robert Frost

Robert Frost

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Adobe knows about this bug already.

Bob Frost
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Chris Packrat

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Thanks for the answer!

(I'm glad they know about it.
I'd be even happier if they'd consider doing sth about it :p)