Subject | Re: Lenses and sharpening |
From | Eric Stevens |
Date | 09/20/2014 23:52 (09/21/2014 09:52) |
Message-ID | <eltr1al1j2i70oiitbm3uus1igvlb37vnr@4ax.com> |
Client | |
Newsgroups | rec.photo.digital |
Follows | Sandman |
Followups | Sandman (12h & 26m) > Eric Stevens |
SandmanAnd that's what happens when you export an image.
In article <190920141534108016%nospam@nospam.invalid>, nospam wrote:SandmannospamSandmannospamnospamSandman
the changes are rendered on the fly and may be cached to disk (which is the preview file you're talking about). the latter is optional.
It's not optional. All images in LR are always rendered as previews. They are kept inside your LR library.
it is optional.
Not in LR. They are a mandatory part of the image import and workflow process.
yes in lightroom. it has various options for previews and if it needs a bigger preview than it has cached, it will need to rerender it.
Exactly.
--SandmannospamSandman
previews are for a responsive user interface.
Of course.nospamnospamSandman
they are not required as part of a non-destructive workflow.
They are, however, required in Lightroom's workflow, which is non-destructive.
they are not required at all.
They are.nospamSandman
lightroom uses them for a responsive interface but they can be purged at any time and other apps may use them differently or not at all.
If purged, they are automatically recreated by LR. LR can not function without preview files.SandmannospamSandmannospamnospamSandman
it is not a pixel editor.
Sure it is, only in another sense than old Photoshop. Every single adjustment you make in LR are applied to the pixels and saved to disk as a preview image. Difference is that the original file is always kept intact so every step is fully reversible.
nope. lightroom is a parametric editor, not a pixel editor.
It can be, and is, both. The parameters are applied to the pixels as they are made, in the preview file. Also, of course, in any exported files.
lightroom is not a pixel editor. period.
*rolleye*SandmannospamSandmanIn fact - using smart filters in Photoshop is *less* of a pixel editor than LR these days, because the pixels are never touched, it's all kept in RAM and the resulting image is never saved to disk until you export/save it. Also, fully reversible of course. :)nospam
photoshop is a pixel editor but can be used in a non-destructive manner. that doesn't make it a parametric editor.
Using it as I described above makes it one, yes.
no it doesn't. photoshop is not a parametric editor.
Parametric image editing is a class of non-destructive image editing where the editing software does not alter original files. Photoshop can be used in exactly this manner, and you know it.
When used this way - using smart filters and adjustment layers, Photoshop *IS* a parametric image editor.
That's just reality.