Quoting Godfrey DiGiorgi <[email protected]>:
On Dec 6, 2014, at 9:04 PM, Brian Walters <[email protected]> wrote:
… one thing I like to do with layers in PS for certain images, and
once I've adjusted the colour image the way I like, is to merge all
layers to a new top layer and do a B&W conversion on it with Silver
Efex Pro. In this way I can save both colour and B&W versions in
the one layered file. It's not a big deal but I don't think that's
possible in LR.
You get the same thing done in LR by:
- Adjusting the color image the way you like.
- Creating a virtual copy.
- Doing a B&W conversion on the virtual copy with Silver Efex Pro.
What LR is doing with files behind the scenes is inconsequential.
The original image file will be untouched, you can return to it any
time you want, and it sits in the catalog right alongside the
virtual copies.
I'm not sure in detail how SEP and LR interact, but if SEP is
operating as an external editor, LR will have created file with all
your adjustments fully rendered then passed that to SEP for
processing. If SEP is operating as a plugin with parametric
processing, it will just modify the virtual copy.
At any time, you can go back to the original, your color rendered
version, or the B&W version, and do whatever you want to do with
them. You can make a near infinite number of virtual copies. They
live in the catalog database as a few hundred bytes of data to
provide the reference to the original file and whatever parametric
adjustments you have made. When you export one, you create a new
file with all the rendering and metadata just as you created it,
independent of LR and the original file that it was derived from.
In LR you can stack masters and virtual copies, put the one you are
interested in on top, and collapse the stack so you see only the one
on top. You can expand the stack and see all the others any time you
want too. That's pretty much the same thing as making separate layer
sets in a Photoshop image file and only showing one or the other at
any given time.
Thanks, Godfrey - interesting insight into how LR works.
I get LR as part of my Creative Cloud subscription so I should as
least play with it a bit - if only I can find the time :-)>
--
Cheers
Brian
++++++++++++++++++++++++++++++++++
Brian Walters
Western Sydney Australia
http://lyons-ryan.org/southernlight/
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