Re: [Gimp-user] Layer groups seriously broken - huge resource hog

[Daniel Smith <opened to gmail com>]

Also, I have found in graphics the more cores you can have, the better. 
Dan

Sent from my iPhone

> On Jun 19, 2018, at 11:13 AM, BWK <forums gimpusers com> wrote:
>
> I doubt you've ever tried doing a selection rectangle to that size and getting
> it exactly the right size and boundaries. It is a very slow and fiddly
> operation.
>
> > Layer groups internally create a virtual layer representing their
> > entire composited contents to speed up overall rendering of the image
> > (at the topmost levels); a similar thing already occurs when you have
> > a project containing text layers.
> >
> >
> > Alternatively, you mentioned your process involves resizing the image
> > canvas as a means to 'crop' a given portion of the image out to a JPG?
> > If this is your only performance bottleneck then finding a way to
> > avoid that step should work around the issue entirely.  How about
> > trying these steps instead?
> >
> > 1- Create a rectangle selection of the desired export size (e.g.
> > 4800x7200) at the desired location in the image
> >
> > 2- Edit > "Copy Visible" (copies from all rendered layers)
> >
> > 3- Paste as New Image
> >
> > 4- Export
> >
> >
> >
> > -- Stratadrake
> > strata_ranger hotmail com
> > --------------------
> > Numbers may not lie, but neither do they tell the whole truth.
>
> -- 
> BWK (via www.gimpusers.com/forums)
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