Google| Subject | Re: Lenses and sharpening |
| From | Sandman |
| Date | 09/19/2014 09:01 (09/19/2014 09:01) |
| Message-ID | <slrnm1nllv.b9l.mr@irc.sandman.net> |
| Client | |
| Newsgroups | rec.photo.digital |
| Follows | Eric Stevens |
| Followups | nospam (3m) > Sandman Eric Stevens (2h & 37m) > Sandman |
In article <kgcn1at99rogclf1uf77b4ugulal0snr3g@4ax.com>, Eric Stevens wrote:
Yes, they have. All adjustments are being applied to a preview file as you do them. The original file is untouched at *all times*, at no point in time is it edited in any way.nospam
you're overanalyzing things again.the user makes a change to an image and quits the app. the next dayEric Stevens
All they have done up to this point is create a list of edits and view a simulacrum of their effect in screen. They haven't actually edited the image.
Same with Photoshop and smart filters. All filters are added in the program and the original image data is kept intact at all times. If you "export" it from Photoshop in an image format that supports smart filters (such as TIFF), the reciever can reverse the process at any time, since the original image data is kept 100% intact.
No "simulacrum" involved, Eric. Stop using words you don't understand.nospamEric Stevens
they resume working on the image and decide to reverse what they did the day before.
So they change the list of edits and againview the changed simulacrum which results.
They haven't actually created any image to be changed at either point. That oonly happens once they execute the list of edits by exporting the image.Incorrect. Do you really think that Lightroom will display thousands of edited images in grid view by applying all adjustments in realtime? Of course not. All adjustments are applied to preview files that are saved to disk. That's the image data you're looking at.
The *only* point Lightroom loads the original file and applies the rendering chain in RAM is when you're viewing an image in 100% zoom.
Sure they can, the original file is untouched and everything can be reversed.nospamEric Stevens
with a non-destructive workflow, they can do that. without a non-destructive workflow, the changes cannot be reversed.
Once they have executed the list of edits by exporting a file the changes can't generally be reversed either.
To the pixels. nospam is incorrect here. All LR adjustments are applied to a preview file and saved to disk.Eric StevensAnd I have pointed out that you cannot reverse a change which has not actually been made. Even if it is reversible, you can't reverse something before you have done it.nospam
the change *has* been made, just not to the pixels themselves.
And to what has the change been made?
Very much so.nospamEric Stevens
as i said, you're confused.
I'm confused?
-- Sandman[.net]
09/13/2014-
